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N A T U R E T O U R I S M • S T R A T E G I C H A B I T A T S • M E R C U R Y T E S T I N G • C O A S T A L S O N G B I R D S Coastwatch N O R T H C A R O L I N A S E A G R A N T • 2 0 1 2 • I S S U E 3 • S U M M E R • $ 3 . 7 5 EXPLORING THE NORTH CAROLINA COAST F R O M T H E E D I T O R Alamance Alexander Alleghany Anson Ashe Beaufort Bertie Bladen Burke Cabarrus Caldwell Caswell Catawba Chatham Clay Cleveland Columbus Craven Cumberland Davidson Dare Davie Duplin Durham Franklin Edgecombe Gaston Gates Graham Granville Greene Halifax Harnett Henderson Hoke Hyde Iredell Jackson Johnston Jones Lenoir Lincoln McDowell Macon Madison Martin Mitchell Moore Nash Northampton Onslow Orange Pamlico Pender Person Pitt Polk Robeson Rowan Rutherford Sampson Scotland Stanly Stokes Surry Swain Transylvania Tyrrell Union Vance Wake Warren Washington Watauga Wayne Wilkes Wilson Yadkin Yancey PKY 40 40 40 85 95 77 85 26 Asheville Asheboro Greensboro Durham Charlotte Raleigh Nags Head Washington Jacksonville Wilmington Fayetteville Morehead City New Bern Rocky Mount Winston-Salem Haywood Buncombe Avery Pasquotank Perquimans Currituck Camden Chowan Randolph Montgomery Mecklenburg Rockingham Lee Richmond Forsyth Guilford Carteret Hertford Brunswick Cherokee New Hanover Summer’s here. Perhaps you and your loved ones are headed to the beach for some down time. Keep your eyes peeled. You might run into some of our researchers conducting fieldwork while you’re catching some rays. Say hello if you spot any of them. While you’re enjoying the sand and the surf, be safe. Mirek Dabrowski, whose Duck-based company provides lifeguards for several northern Outer Banks communities, sees a lot of head and neck spine injuries in his line of work. These often happen when beachgoers are thrown head first by the waves, or dive and hit shallow bottom. Dislocations, particularly of shoulders, also are common. Dabrowski has some simple rules for safe beach play. First, do not underestimate the surf. It can be stronger than you expect. Second, do not overestimate your abilities. Our skills and strength diminish with time and lack of practice. Never turn your back on a wave. Go feet first into the water. Caution is key. Another important safety tool is proper and timely information. On May 15, our partners at the National Weather Service, or NWS, began testing a Beach Hazards Statement as a single source for coastal and beach hazard information. The NWS Weather Forecasting Office in Newport/Morehead City is one of six pilot sites in the country. When issued, the Beach Hazards Statement will be highlighted in turquoise on the NWS Watch, Warning, and Advisory map at: www.weather.gov. According to the NWS, Beach Hazards Statements “will inform the public about a wide range of hazards, including rip currents and rough seas, unusually cold water temperatures, potential for lightning along the shoreline, high heat indices and unusual wave conditions.” Statements also will include information about environmental and ecological hazards threatening the coast. Provide feedback on this new service through a link on: www.weather.gov. Turns out, this summer also is the season for awards for North Carolina Sea Grant and its partners. Scott Baker, our fisheries specialist, received the 2012 South Atlantic Sea Grant Regional Outreach Award for his work on community supported fisheries and other promising business models. His nomination cites his contributions to help fishermen enhance their incomes, while educating inland consumers about the importance of local seafood and the traditions of fishing communities. He is entered into the national-level competition and the winner will be announced this fall. The Walter B. Jones Memorial Awards for Coastal and Ocean Resource Management were named in June, and North Carolina snagged prizes. Plymouth was recognized for Excellence A Season for Relaxation and Recognition I N T H I S I S S U E Contributing Writers: Brian Efland Terri Kirby Hathaway E-Ching Lee Katie Mosher Chelsea Pierce Spencer Rogers Sharon Settlage Megan Sharp Pam Smith Contributing Photographers: Sarah K. Amspacher Nate Bacheler Pete Bell Jeff Buckel Brian Efland David Eggleston Amy Freitag Walker Golder Jess Hawkins Jimmy Johnson Adam Jones Jo O’Keefe Chris Layton Jeff Lewis Vanda Lewis Cameron Lowe Craig McDuffie Ray Midgett Jodie Mitchum Shireen Nadir Gene Pinder Spencer Rogers Sharon Settlage Pam Smith Scott Taylor Marc Turano Sabrina Varnam Pete Watkins North Carolina’s diverse coast offers countless interesting subjects. The map indicates story settings in this issue — including Brunswick, Carteret and New Hanover counties, and Pamlico Sound. in Local Government. Sea Grant nominated the community for its efforts to identify economic growth opportunities while maintaining the environmental quality that has earned the Lower Roanoke River Basin a designation as the state’s environmental “crown jewel.” Read about Plymouth’s efforts to address sea-level rise in the Spring 2012 issue of Coastwatch. Also, six North Carolina scholars received Excellence in Coastal and Marine Graduate Study awards. This category recognizes graduate students whose research promises to contribute to new or improved approaches to coastal or ocean management. Coastwatch readers will see some familiar names among the recipients: Michelle Brodeur, featured in the Summer 2011 issue; Jennifer Cudney-Burch, quoted in the Summer 2010 issue; Tim Ellis, highlighted in the Spring 2009 issue; and Michelle Covi, who wrote the Spring 2012 article on Plymouth. In addition, Rachel Gittman from the University of North Carolina at Chapel Hill and Matthew McCarthy from UNC Wilmington were honored. We will highlight these winners in our next issue, but you can read more at: www. ncseagrant.org. Have a sunny and safe summer. — E-Ching Lee, Coastwatch Managing Editor Summer 2012 F E A T U R E S COA S TA L T I D I N G S ............................................................................2 Take it Outside: Wet and Wild Coastal North Carolina Vacation season is upon us. Ready to do something a little different, such as soaring, diving or howling? Pam Smith shares loads of ideas for nature-based tourism. ........................................................................................6 The Pamlico Sound: Fishing Gem of North Carolina Take out too many threads and the blanket may come unwoven. The idea behind identifying strategic habitat areas is to keep the whole of the state’s fisheries intact. Join Sharon Settlage as she explores the method behind the plan to protect North Carolina’s fisheries. ..............................12 Hunting for Quicksilver: Testing Local Seafood for Mercury E-Ching Lee gives us another reason for eating local. She talks with scientists who tested the state’s seafood for contaminants. Find out why national recommendations may not hold for North Carolina fish. .............18 N A T U R A L I S T ’ S N O T E B O O K : A Song Across the Water Go beyond the beach with Megan Sharp. She shows us coastal songbirds that are worth going a little out of the way to see — and hear. ................ 24 C U R R E N T S : Cruising to Fuel Savings It’s costing more to fill up the boat this year. Take a ride with Brian Efland and learn how to boost fuel efficiency. ...................................... .27 P E O P L E A N D P L A C E S : Currituck County Goes Green Come along with Sharon Settlage to Powells Point for the Currituck Sound Water Quality Fair. Learn how Currituck County is taking the lead in environmental stewardship. ....................................................... 28 S E A S C I E N C E : Rolling with the Tide Watch the tide with Terri Kirby Hathaway to learn how it forms and the forces that shape it. .............................................................................. 30 MA R I N E R ’ S ME N U : Healthy Seafood Choices Have an excess of cherry tomatoes? Check out a recipe for a crab-stuffed tomato appetizer. Consider breaded triggerfish or sautéed mahi-mahi as the main dish. .................................................................................. 33 coastwatch | summer 2012 | www.ncseagrant.org 1 Coastwatch NATIONALOCEANICANDATMOSPHERICADMINISTRATION U S DEPARTMENTOFCOMMERCE 2 coastwatch | summer 2012 | www.ncseagrant.org Coastwatch North Carolina Sea Grant • 2012 • Issue 3 • Summer Editor Katie Mosher Managing Editor E-Ching Lee Contributing Editor Sharon Settlage Designer Linda Noble Circulation Manager Sandra Harris The North Carolina Sea Grant College Program is a federal/state program that promotes stewardship of coastal and marine resources through research and outreach. It joined the National Sea Grant College Network in 1970 as an institutional program. Six years later, it was designated a Sea Grant College. Today, North Carolina Sea Grant supports research projects, an extension program and a communications staff. Michael Voiland is executive director. The program is funded by the U.S. Department of Commerce’s National Oceanic and Atmospheric Administration, and the state through the University of North Carolina. Coastwatch (ISSN: 1068-784X; USPS Periodical # 010464) is published five times a year (January/February, March/April/May, June/July, August/September/October, November/ December) by the North Carolina Sea Grant College Program, North Carolina State University, Box 8605, Raleigh, North Carolina 27695-8605. Telephone: 919/515-2454. Fax: 919/515-7095. Subscriptions are $15. Email: eching_lee@ncsu.edu World Wide Web address: http://www.ncseagrant.org Periodical Postage paid at Raleigh, N.C. POSTMASTER: Send address changes to Coastwatch, North Carolina Sea Grant, North Carolina State University, Box 8605, Raleigh, NC 27695-8605. Cover photo of Carolina Beach courtesy of VisitNC.com. Table of contents graphic based on photo of pink shrimp by Vanda Lewis. Printed on recycled paper. CInO theA NexSt IsTsueW of CAoaTstwCatchH In the Autumn issue, we focus on what counties and federal agencies have learned from Irene to improve forecasting and communication during storms. Also, find out about a study that monitors fishermen on their boats using video cameras and sensors. In addition, explore North Carolina’s Inner Banks where People-First Tourism is establishing a network of tourism businesses based on the ecology, history and culture of local communities through Sea Grant-funded research. C O A S T A L T I D I N G S Voiland, Lee Earn Awards for Excellence Michael Voiland, executive director of North Carolina Sea Grant, and E-Ching Lee, science writer/editor, took honors in their respective categories at the 2012 awards program for the North Carolina State University Office of Research, Innovation and Economic Development. Voiland also serves as director of the Water Resources Research Institute of the University of North Carolina. The staffs of both programs nominated him for management excellence leading to major awards from state and national agencies for contributions to coastal research and applied practices. Voiland, who will retire at the end of the year, previously served as chair of the state’s first Waterfront Access Study Committee, which included members from all sides of the sometimes-contentious issues dealing with waterfront access. He led the committee to make recommendations to the N.C. legislature that resulted in a $20 million fund to support public access along the North Carolina coast. As managing editor of Sea Grant’s award-winning magazine, Coastwatch, Lee was recognized for her exceptional service in, among other areas, selecting news topics that keep the state’s citizens informed, such as ways coastal communities can plan their futures effectively. She also was cited for her work with undergraduate and graduate interns. The NC State Awards for Excellence program recognizes permanent employees for “outstanding accomplishments that do not fall entirely within normal duties, but are a major contribution reflecting credit on the person and the state.” Five university winners moved to the Governor’s Award for Excellence selection process set for later this year. — K.M. North Carolina Sea Grant was well represented at the 2012 Awards for Excellence. Gene Pinder coastwatch | summer 2012 | www.ncseagrant.org 3 Tiger Shrimp Sightings Increase Recent sightings of Asian tiger shrimp off the Atlantic and Gulf coasts have sparked concern among researchers and shrimpers. Scientists from the National Oceanic and Atmospheric Administration and U.S. Geological Survey are working with North Carolina and Texas agencies to find the cause for their presence in U.S. waters. Pam Fuller, USGS biologist, notes that the sightings of tiger shrimp have increased nearly 20 fold from 32 in 2011 to 593 this year in the Pamlico Sound. Some scientists believe the non-native shrimp arrived by boat, while others suggest currents are responsible. NOAA scientists will look at the pos-sibility that the Asian shrimp are breeding and the effects the shrimp will have on na-tive shrimp. North Carolina’s native shrimp are brown shrimp; pink shrimp, also known as spotted shrimp; and white shrimp, also known as green-tailed shrimp. “Asian tiger shrimp are larger in size than Carolina shrimp and have distinctive markings as adults, but they are difficult to distinguish at younger stages,” explains Marc Turano, North Carolina Sea Grant extension specialist. Anyone who spots a tiger shrimp should alert NOAA by reporting the sighting to: nas.er.usgs.gov/SightingReport.aspx. — C.P. C O A S T A L T I D I N G S Sturgeon Listed as Endangered The Atlantic sturgeon was named a federally endangered species in April. The National Marine Fisheries Service published a final rule in the Federal Register that lists the Carolina and South Atlantic population segments, both of which are prevalent in North Carolina waters, as endangered. It has been illegal to harvest Atlantic sturgeon in the state’s coastal waters since 1991. The Endangered Species Act prohibits the take — including harassing, harming, pursuing, wounding, killing, trapping, capturing or collecting — of listed species. A federal status review of Atlantic sturgeon concluded that the fish are caught as bycatch in commercial fisheries along the entire U.S. Atlantic Coast. Sturgeon are primarily caught in waters less than 50 meters deep by commercial and recreational fisheries using trawls and gillnets. The N.C. Division of Marine Fisheries, along with most other East Coast states, opposes this Fisheries Science in the Spotlight The annual meeting of the Tidewater Chapter of the American Fisheries Society provided an opportunity for students to strut their stuff in front of an audience interested in fisheries research. “The function provides a formal but relatively low-pressure venue for students to gain experience in giving presentations in public. It provides a chance for informal, constructive advice to our students that improves their presentations and their science,” explains Sara Mirabilio, North Carolina Sea Grant fisheries specialist. The meeting was held in March at the N.C. Maritime Museum in Beaufort. Students presented posters and projects funded by state and federal programs that Sea Grant administers. Several East Carolina University students presented Sea Grant-supported research that studied the depletion of river herring stocks. On a positive note, an ECU group reported a 10-fold increase in river herring larvae relative to a 1981 study. ECU researchers also encouraged the use of calibrated gillnets to count fish, such as spiny dogfish, that swim high in the water column. A North Carolina State University study used a novel tagging technique to track small fish migrations — a potential method to monitor water quality. NC State research also improved methods for estimating blue crab populations after storm events. A University of North Carolina Wilmington study found that maturity assessments of southern flounder might need to be reconsidered. — S.B.S. ABOVE, LEFT TO RIGHT: The oyster toadfish is the mascot for the AFS Tidewater Chapter. • Atlantic sturgeon is considered one of the oldest fish species in the world. • Tiger shrimp can grow to 13 inches. listing based on its review of available scientific data that show Atlantic sturgeon stocks are improving coast-wide. With this listing, fishermen will be subject to federal fines and penalties if they interact with the fish. Chris Batsavage, DMF protected resources section chief, notes that the agency is requesting an incidental take permit under Section 10 of the Endangered Species Act for the state’s estuarine gillnet fisheries. These permits allow for the taking of endangered species that occur incidentally to an otherwise lawful activity under specific limitations. “In addition, the Marine Fisheries Commission asked the DMF to develop a suite of potential management options for the protection of Atlantic sturgeon,” Batsavage explains. “These potential management options will be reviewed by the regional advisory committees this summer before they are presented to the commission in August.” — E.L. Duane Raver Duane Raver NOAA C O A S T A L T I D I N G S Recreational Fisheries Forum Showcases Data Gathering North Carolina Sea Grant renewed a tradition with the 2012 Marine Recreational Fisheries Forum, held in Raleigh in April. The event drew anglers, researchers and fisheries managers to discuss a range of topics from stocks’ status, to efforts to gather data on recreational catches. Sea Grant hosted an annual forum series from 1992 to 1997. The 2012 meeting was designed to engage the recreational fishing community on current issues through a facilitated discussion outside of the regulatory arena. “We were pleased with the program and discussion. We anticipate an even greater turnout for a 2013 forum that will be held early next year,” says Scott Baker, a Wilmington-based fisheries specialist, who organized the event, along with Sea Grant colleague Sara Mirabilio in Manteo. Mirabilio adds “87 percent of the attendees found that the meeting provided them new viewpoints or insights.” Presenters included university researchers and representatives of the N.C. Division of Marine Fisheries, the Mid- Atlantic Fishery Management Council, the National Oceanic and Atmospheric Administration, and the Coastal Conservation Association North Carolina. Also, N.C. Representative Tom Murry of Raleigh noted that some related topics could come up in the N.C. General Assembly’s summer short session, including recommendations from a marine fisheries’ management study committee. Watch future issues of Coastwatch and Sea Grant’s online calendar for more information on the 2013 forum. Presentations from the 2012 meeting are available at: www.ncseagrant.org/recfishforum. — K.M. 4 coastwatch | summer 2012 | www.ncseagrant.org Permeable Pavement Workshop The Friday Center in Chapel Hill, Fayetteville Technical Community College and a shopping center in Rocky Mount, plus many other sites in North Carolina, have turned to permeable pavement to reduce stormwater runoff. North Carolina State University; N.C. Division of the Environment and Natural Resources, or DENR; and North Carolina Sea Grant are sponsoring permeable pavement workshops throughout this summer. Although several are sold out, others slated for Chapel Hill, Wilson and Asheville still have spots. Early bird discounts are available. The impetus for the workshops comes from updated DENR regulations. Bill Hunt, on faculty with the department of biological and agricultural engineering at NC State, conducted pioneering research on permeable pavement that indicates its usefulness from the mountains to the coast. Previous DENR regulations gave stormwater credit only for permeable surfaces at the coast. Engineers, landscape architects and others interested in the practice should attend. However, the sessions are useful for a broad audience. Professional development hours are available for professional engineers and surveyors. For more information, go to: www.ncseagrant.org and click on Issues and Events. Then search for links to the permeable pavement workshops, including speakers and registration. To see a national map of businesses and residences that use permeable pavement, go to: nemonet.uconn.edu and select the National LID Atlas. — S.B.S. Storm season started before June 1 this year, with tropical storms Alberto and Beryl forming in late May. However, multiple outlooks anticipate the 2012 hurricane season to be milder than last year, when Hurricane Irene caused devastation. North Carolina State University’s Atlantic Tropical Cyclone Outlook indicates that 2012 hurricanes will be “on par with the long-term average over the past 62 years.” The report also notes that storm activity will be below that of the last 20 years. The National Oceanic and Atmospheric Administration also expects a tame season. “NOAA’s outlook predicts a less active season compared to recent years,” notes administrator Jane Lubchenco. NOAA recently declared Hurricane Irene as retired from the list of Atlantic Basin Storm Names, due to the damage caused in 2011. NOAA stresses staying safe and alert during the hurricane season. “There is a reason why we warn for these events and people should take them seriously,” explained newly retired National Hurricane Center Coordinator Bill Read at the 2012 N.C. Hurricane Workshop. North Carolina Sea Grant co-sponsored the meeting held at East Carolina University. During hurricane season, coastal residents should have supplies ready for extreme weather conditions. “We don’t know when that hurricane is going to impact us. It could be in a low-frequency year, so we have to be ready no matter what,” says John Cole, warning coordination meteorologist for the National Weather Service office in Newport/Morehead City. State and federal agencies suggest creating an emergency kit with water, nonperishable foods, a first aid kit, a radio, a flashlight and batteries. Also include necessary medications and important legal documents. For the latest in hurricane research, visit: researchmatters.noaa.gov/news/Pages/hurricanes.aspx. For more information on extreme weather preparedness visit: www.readync.org and: www. ready.gov/hurricanes. — C.P. Average Hurricane Season Predicted A permeable pavement sidewalk at N.C. Wildlife Resource Commission’s Centennial Campus Center for Wildlife Education. Chris Layton Sharon Settlage coastwatch | summer 2012 | www.ncseagrant.org 5 C O A S T A L T I D I N G S Students, Teachers Create Questions for ‘Molly by the Sea’ Molly has some new friends. Students and teachers from Manteo Elementary School collaborated to write discussion questions for “Molly by the Sea.” The piece was published in the Spring 2012 issue of Coastwatch. “Marine education is a truly multidisciplinary subject — using the ocean and the marine environment to teach all subjects, not just science, is what it’s all about,” says Terri Kirby Hathaway, North Carolina Sea Grant’s marine education specialist. “‘Molly by the Sea’ is an easy tool for teachers to use in their classroom.” Jodie Mitchum’s 5th grade Academically or Intellectually Gifted students, along with Title I teacher Pat Baker, produced comprehension questions that meet Common Core State Standards for grades 3 and 4. This curriculum is accepted in North Carolina’s public school system and in many public school systems nationwide. “My students were so excited and motivated to do an excellent job with writing the questions,” Mitchum says. “The kids did a great job of trying to make them common core aligned and somewhat rigorous. What a great task for them at this stage in their reading development!” Baker also praised the short story. “Through Molly’s eyes, my students are more knowledgeable of our unique habitat. This is a special goal of mine and I feel it is important for the livelihood of our community,” she notes. For more, visit: www.ncseagrant.org/ s/molly. — M.S. NC Documentary Covers the Waterfront Seafood seasonality and coastal communities were in the spotlight in the UNC-TV documentary “North Carolina’s Local Catch.” If you missed the initial airing, check UNC-TV channel listings for rebroadcasts. “We consider this a strong program,” explains Shannon Vickery, UNC-TV director of production. “We plan to use it well into the future.” Funded by the N.C. Fishery Resource Grant Program, the documentary also is available at: www.unctv.org/nclocalcatch. DVD copies for personal and educational viewing can be requested from North Carolina Sea Grant or UNC-TV. “The online program has already been shown in classrooms, and we have had requests from local governments and coastal businesses, as well as ‘catch’ groups at the local and state levels,” notes Barry Nash, Sea Grant seafood specialist who was on UNC-TV’s “North Carolina Now” public affairs program before the documentary debuted. Nash anticipates that seafood markets will run the piece and provide online links to help customers understand more about their products. Also, restaurants and realty companies may show it during the busy summer seasons, as will parks and visitors’ centers. The program provided information on harvest seasons for fish, tips on identifying high-quality seafood and even producer Rick Sullivan’s feast with family and friends. “Yes, you can try this at home,” Sullivan adds. Many of those interviewed during the program have heard rave reviews from friends, customers and viewers. Even coastal natives found themselves learning something. “There were things that surprised them, like the statistics on the best-selling seafood,” notes Gaye Varnam Fulford, who participates in Brunswick Catch. To request a DVD copy for classroom or informal educational uses, call Sea Grant at 919/515-9101; send an email to: sandra_harris@ ncsu.edu; or check with an office in Raleigh, Manteo, Morehead City or Wilmington. For additional information on uses for the video, contact: svickery@unctv.org. The documentary is not available for broadcast on other TV channels. — K.M. Raleigh Charter Earns National Honors Raleigh Charter High School took second place at the annual National Ocean Sciences Bowl, held in Baltimore in April. The team advanced to the national competition by winning the North Carolina contest, known as the Blue Heron Bowl. Ben Whitfield, Jonathan Tseng, Dan Qu, Ben Hames and Jonathan Cookmeyer were on the team. They competed against 25 other high schools from across the nation. The contest consisted of multiple-choice questions on ocean knowledge, answered individually, as well as more challenging team questions. Each team also presented on offshore renewable energy. “The team’s willingness to take chances to win was the most impressive,” coach Whit Hames recalls. The Raleigh teens’ efforts were rewarded with a trip to Mississippi, where the students will be tagging sharks, kayaking in the sea, and studying fish and dolphins. “This kind of field experience changes people. It shows them the world,” the biology teacher adds. North Carolina State University will host the 2013 Blue Heron Bowl. For details on the 2012 North Carolina competition, go to: www.ecu.edu/icsp/bhb2012/. For more information on the National Ocean Sciences Bowl, visit: www.nosb.org. — C.P. ABOVE: Blackened red drum was featured in the program. Pete Bell/UNC-TV Jodie Mitchum ABOVE: Fifth grade AIG students from Manteo Elementary School. 6 coastwatch | summer 2012 | www.ncseagrant.org Jo O’Keefe Craig McDuffie Pete Watkins coastwatch | summer 2012 | www.ncseagrant.org 7 C o n t i n u e d Question: What might visitors opt to do while on vacation in coastal North Carolina? A. Soar like a bird. B. Dive like a fish. C. Howl like a wolf. D. All of the above. Answer: All of the above. Indeed, variety is the essence of the coastal experience for visitors who want to observe nature, and be part of it; to learn about it, and from it. Lucky for them, a growing number of nature-based tourism opportunities complement traditional leisure activities that have drawn tourists for decades to North Carolina’s renowned sun-drenched beaches, fishing meccas and bird-watching vistas. “North Carolina’s coastal woods and waters are full of opportunities for ecotourists,” says Jack Thigpen, North Carolina Sea Grant extension director. “The diversity of wildlife and plants, together with small waterfront communities, make for a wonderful experience. Increasing tourism also is creating business opportunities for local entrepreneurs.” Here and globally, communities and businesses are embracing ecotourism principles that promote responsible activities in and with nature, build environmental and cultural awareness and respect for natural resources, and provide financial benefits for local people and conservation efforts. It’s a good bet that coastal ecotourism makes a significant contribution to the state. The N.C. Division of Tourism, Film Development and Sports’ overall 2010 economic report says: “Visitors traveling to and within the state of North Carolina spent a record $17 billion in 2010, supporting more than 40,000 North Carolina businesses and directly supporting 183,900 jobs all across the state. State and local tax revenues generated as a result of visitor spending totals more than $1.5 billion annually. North Carolina ranks as the 6th most visited state in the United States.” • Take it Outdoors It’s encouraging to note that a recent study by The Outdoor Foundation shows that more Americans participated in outdoor recreation activities in 2011 than in the past five years. Birding, running, biking, fishing and paddling were among the activities reported. Many coastal communities are responding to the trend toward active lifestyles by develop-ing recreation facilities that include hiking trails and dockside entry for kayaks and canoes. The Take it WET AND WILD COASTAL NORTH CAROLINA B y P a m S m i t h Top, left to right: A stone crab scurries along the wet sand. • Coastal waters are full of opportunities for ecotourists. • Scuba-Now divers explore colorful ledges. • Ibis enjoy a buffet in shallow waters. Bottom: A Forbes’ sea star is a magical find for any beachcomber. Jess Hawkins Jo O’Keefe 8 coastwatch | summer 2012 | www.ncseagrant.org Brunswick County Nature Park, for example, has 900 acres with miles of hiking trails through pristine woodlands. Floating docks enable up to four canoes or kayaks at a time to easily slip into the placid black waters of Town Creek. “Nothing beats the stealthiness of kayaking and canoeing for wildlife and birding in out-of-the-way, backwater habitats,” Thigpen points out. On the other hand, he says, birding is a portable pastime that is enhanced by a love for the outdoors, a pair of binoculars, and a bird identification book, such as a copy of The North Carolina Birding Trail Coastal Plain Trail Guide. The North Carolina Birding Trail connects birders with more than 100 birding sites east of Interstate 95 and the communities in which they are found. The driving trail’s website, www.ncbirdingtrail.org, also links visitors to local businesses to help support and stimulate local economies. “Many new kinds of ecotourism businesses are springing up along the coast. In some cases, watermen are testing the waters for new opportunities by offering inshore naturalist trips or offshore pelagic bird-watching explorations,” Thigpen adds. • Soar Like a Bird For adventure-seeking visitors with an urge to fly like a bird, there is Kitty Hawk Kites, a popular Outer Banks adventure recreation hotspot. After proper flight-school instructions, a tourist can trek with a guide to the top of Jockey’s Ridge State Park, strap on hang-gliding gear, and soar with gulls and hawks high above the 420-acre sand dune system, the tallest of its kind in the eastern United States. When Jack Harris and his business partner, Ralph Buxton, launched Kitty Hawk Kites in 1974, the Outer Banks was a mere blip on the national tourism radar screen. Recreational fishing, seasonal hunting and beachcombing at the Cape Hatteras National Seashore were the main attractions for visitors. “Frankly, a lot of people thought we were a bit crazy and that the business wouldn’t last long,” Harris recalls. “Not a lot was going on out here. In fact, the area was pretty impoverished.” Nevertheless, Harris was inspired by a photo he had seen in the Winston-Salem Journal of someone hang gliding off Grandfather Mountain. Soon after, his mail-order hang glider arrived. “We assembled it and took it to Jockey’s Ridge and ran up and down the ridge until we figured out the art of taking off,” he says. “Nothing beats the stealthiness of kayaking and canoeing for wildlife and birding in out-of-the-way, backwater habitats. — Jack Thigpen It took a bit longer for the business to take off. State improvement projects were instrumental in the Outer Banks becoming a year-round tourist destination, Harris says. While most visitors are from out of state, roadways, bridges and ferries now bring significantly more North Carolinians from the Triangle, Triad and Charlotte areas. As Outer Banks tourism has grown, so has Kitty Hawk Kites. Today, the franchise boasts expanded flight training and hang gliding services at Jockey’s Ridge and the Wright Brothers National Memorial. Kayak ecotours, parasailing, surfing and paddleboard lessons are offered at several locations. Harris partners with other local entrepreneurs to help market ecotourism ventures that range from dolphin-watching boat tours to guided Segway tours at a wild mustang preserve in Corolla. Harris says hang gliding remains his true passion. “You can work the kite to catch a thermal lift — an exhilarating experience. You feel connected to nature and that moment in history when the Wright Brothers took flight a short distance from here. The wind and water work together to form Jockey’s Ridge, the perfect platform for flight.” The take-home message for Kitty Hawk Kites patrons is simple, Harris says. “Our natural resources are incredible and wonderful. We need to enjoy them, respect them and protect them from negative impacts.” Top: Jess and Diane Hawkins enjoy talking about ecotourism adventures aboard Lucky Dog. Middle: A hang glider takes off atop Jockey’s Ridge to soar with the birds. Bottom: Black skimmers and gulls congregate before they hunt for fish. Pam Smith Courtesy Kitty Hawk Kites Jo O’Keefe coastwatch | summer 2012 | www.ncseagrant.org 9 C o n t i n u e d • Teachable Moments Further south, in the waters surrounding Cape Lookout National Seashore, you’re likely to find Capt. Jess Hawkins aboard his boat, Lucky Dog. He’ll be doing what he loves best — helping visitors discover the natural treasures of the Crystal Coast. Hawkins, a marine biologist by vocation and avocation, launched Crystal Coast Ecotours out of Morehead City three years ago after a 30-year career with the N.C. Division of Marine Fisheries. During peak summer months, most of his passengers are out-of-state vacationers. Many return each season to the same rental properties and further adventures aboard Lucky Dog. Each excursion is unique, he says, because of daily and seasonal changes that occur in a variety of aquatic habitats — sea grass meadows, backwater sounds and marshes. One thing that does not change is the excitement of his passengers when they spot dolphins surfacing nearby. During summer months, dolphins lead their young into the backwater fisheries nursery area where food is abundant and predators are scarce. “The nets yield a multitude of surprises even for an old marine biologist like me. Seeing the joy of discovery — that aha moment — on our passengers’ faces makes this a very fulfilling adventure.” — Jess Hawkins Another sure hit for Hawkins’ passengers is seeing the wild horses that roam on Shackleford Banks, a secluded barrier island that is part of the Cape Lookout National Seashore. The horses are said to be descendents of horses brought to the New World by Spanish explorers. Hawkins also provides hands-on teachable moments through clamming, crabbing, and pulling seine nets through the shallow brackish waters. “The nets yield a multitude of surprises even for an old marine biologist like me. Seeing the joy of discovery — that aha moment — on our passengers’ faces makes this a very fulfilling adventure,” Hawkins asserts. • Howl like a Wolf Hawkins also evokes “aha moments” at the nearby Pine Knoll Shores Aquarium, where he shares his knowledge of marine biology as an instructor for various programs. Terri Kirby Hathaway, Sea Grant marine education specialist, believes informal educational programs, such as those offered at the state’s three aquariums, are wonderful ways to “extend” the aquarium experience. “Visitors observe a simulated environment at the aquariums, then gain a deeper understanding and appreciation for the environment through a hands-on nature experience,” Hathaway points out. Like the aquariums, most North Carolina state parks, coastal reserves and national wildlife refuges offer self-guided tours, as well as structured programs. “Self-guided walks are meaningful and visitors take away an appreciation for the beauty and diversity in nature. With structured programs, visitors are guided by someone who knows what is there, what to look for, and even what to listen for,” Hathaway explains. “With birds, you usually hear them before you see them. I’ll tell you this — the great blue heron makes a gosh-awful noise. It’s one that makes a lasting impression and stays with you as a great take-home experience,” she says with conviction. At Alligator River National Wildlife Refuge, staff members offer a unique experience — the chance to gather around a campfire at nightfall, learn about the comeback of the Top: Sea Grant’s Brian Efland enjoys kayak fishing with a close-up view of the ponies on Shackleford Banks. Middle left: Segway tours are popular ways to enjoy coastal visits. Middle right: A ghost crab seems to pose for the camera. Bottom: Sea beach amaranth is a rare find at Sunset Beach. Courtesy Kitty Hawk Kites Jo O’Keefe Jo O’Keefe Nate Bacheler 10 coastwatch | summer 2012 | www.ncseagrant.org endangered red wolf and participate in a “howling.” Hathaway even appreciates the informal educational value of a solitary walk on the beach. As a founding member of Beachcomb Alliance International, she knows that these walks are more than collecting shells, sea glass or sea beans. Rather, each discovery is a clue to the history, geology and biology of the region. • Beach-comb for Science Beach-combing often is the gateway to a lifelong commitment to being a citizen scientist. Such is the case for Jo O’Keefe, a Brunswick County resident with a love for all things coastal. She moved to the county in 2002 with a camera and a determination to learn as much as she could about her new surroundings. Early on, she was captivated by the biodiversity of Bird Island, in the N.C. Coastal Reserve system. The living laboratory became her classroom, photo studio and connection to many university marine science researchers. These days, she turns her keen eye to Sunset Beach, timing her walks along the shoreline during an ebbing tide. O’Keefe looks for aberrations in the wet sand near the water’s edge — a triangle impression in the sand turns out to be a colorful whelk; a mounded impression, a moon snail. She places each live find in a bucket of seawater. “The beach is different every day. I never get tired of it,” she says, scooping up a whelk egg case and shaking it to hear the sound of miniscule shells inside. She often becomes a “Pied Piper” of sorts, engaging vacationing families in the pursuit of beach treasure. At the end of a typical walk, she “reviews” the contents of her bucket and may ask someone in the group to return the live animals to the sea. Then, she’ll hand empty containers to the children in the group, telling them, “I taught you how to be a naturalist, now you can do it on your own.” O’Keefe takes some discoveries home in small containers for further study and classification. Others are captured with her camera for posting on a website filled with her nature photography. Along with the images, O’Keefe provides interesting environmental information. She believes that the more people learn about and are engaged in coastal ecology, the more likely they will become partners in protecting it. • Dive Like a Fish The dive team at Scuba-Now in Wilmington has a similar philosophy. The mission of the training and dive center is to make scuba diving safe and affordable, and to turn the world’s dive population into ocean protectors. “We have seen an increase in scuba diving. New technology and the lower cost of gear help promote the sport,” says Pete Watkins, a dive master and underwater photographer. The center certifies about 800 divers annually through rigorous training programs that include class time and pool time before students graduate to an actual dive. About a quarter of the Scuba-Now students are from outside the Wilmington area, according to Inman Campbell, shop manager and boat captain. Scuba-Now operates four vessels, including a newly acquired 40-foot boat that can hold up to 20 divers, Campbell says. “There’s definitely a learning curve to master,” says J.D. Williams, operations manager and dive master. “You are dealing with strong currents and visibility issues. We preach safety and knowing your limits. We also preach conservation — look but don’t touch, especially when it comes to coral. Once you master the art of buoyancy, you can fly underwater and keeping away becomes easier.” Top: Jo O’Keefe talks about the ‘catch of the day’ with Sunset Beach visitors Chloe Lock, Jackie Atkins and Haley Idol from Kernersville. Middle: Capt. Doug Springer explains the ecology and history of the Cape Fear River to Maureen and Fred Halek of Gastonia. Bottom: Looking toward Wilmington, Springer’s passengers observe the shoreline change where fresh water meets brackish river water. Pam Smith Pam Smith Pam Smith coastwatch | summer 2012 | www.ncseagrant.org 11 The most popular dive sites for that company are several offshore artificial reefs. Skilled divers prefer a ledge 100 feet deep off Carolina Beach where fossilized teeth of meg-alodon — the giant shark that lived millions of years ago — are found in abundance. Underwater photographers find countless colorful subjects on dives near Frying Pan Shoals Light Tower, where many tropical and subtropical fish species cluster, Watkins says. “I have taken photos of neon goby, French angel fish, and too many lionfish to count. The underwater world is amazing. You feel like a pioneer discovering a new world. At the same time, the shipwrecks give you a glimpse into history,” Watkins adds. “I have taken photos of neon goby, French angel fish, and too many lionfish to count. The underwater world is amazing. You feel like a pioneer discovering a new world. At the same time, the shipwrecks give you a glimpse into history.” — Pete Watkins • History Meets Ecology Climb aboard the Wilmington with Capt. Doug Springer at the helm. The state-of-the-art, custom-built catamaran is the flagship of Wilmington Water Tours, an ecotour venture that Springer operates with his wife Diane and business partners Garland Valentine and Mary DeLollo. Springer’s favorite cruise offering is a black water adventure into the upper reaches of the northeast Cape Fear River. The tour merges history and ecology with tales of Colonial settlements, thriving rice plantations, geology and important wildlife habitat. “Before there was an Interstate 40,” Springer reminds the mostly out-of-state passengers, “there was the Cape Fear River. It still is a strong economic engine for the region.” Three miles up the river, a colony of osprey has returned for the new nesting season. In 2011, there were more than 20 nests, with up to three chicks per nest. “They have plenty to eat since menhaden fish populations began to rebound,” he explains. Springer slows the Wilmington to point out a sudden change in the shoreline. “That’s the Cape Fear Mountain — a geological uplift that occurred tens of thousands of years ago. It forms the basis for the Castle Hayne aquifer that runs from Wilmington to New Jersey.” Springer, a former Cape Fear riverkeeper, has a clear message for all passengers: “This is your river. Learn to use it. Learn to take care of it. It’ll be your river forever.” A recent middle-school field trip ended with a lively round of questions and answers. The session concluded when a student asked if he could say something. Springer nodded consent. And, on cue, all the students stood up and said in unison: “It’s our river.” North Carolina Tourism Tidbits The following is a sampling of ecotourism opportunities available along North Carolina’s coast: • N.C. Division of Tourism, Film and Sports Development website has information about North Carolina’s coast and beaches: www.visitnc.com. • N.C. Division of Parks and Recreation page has details about park locations and programs: www.ncparks.gov. • U.S. Fish and Wildlife Service’s website has information about visiting wildlife refuges: www.fws.gov. • National Parks Service lists coastal sites in North Carolina: www.nps.gov. • N.C. Aquariums organizes summer camps for kids: www.ncaquariums.com. • N.C. Birding Trail Official Guide website has trail guides and resources: www. ncbirdingtrail.org. • N.C. Paddle Trail Association has maps: www.ncpaddletrails.info. • Coastal nature photography and information: www.okeefes.org. • Scuba-Now information: www.scuba-now. com. • Ecotours with Capt. Jess Hawkins: www.crystalcoastecotours.com. • Ecotours with Capt. Doug Springer: www.wilmingtonwatertours.com. • Kitty Hawk Kites history and services: www.kittyhawk.com. • Beachcomb Alliance International: www.beachcomballiance.org. • 2012 Beachcombers Conference: www.beachcombingconference.com. Top left: Crystal Coast Ecotours provided this moment of discovery for Logan Rooks of Virginia. Top right: An angel fish is ‘caught’ by a Scuba-Now photographer. Bottom: Underwater photography is a growing interest for scuba divers. Jess Hawkins Pete Watkins Pete Watkins pamlico sound 12 coastwatch | summer 2012 | www.ncseagrant.org C o n t i n u e d Habitat — it’s a word you’ll see often in the North Carolina Coastal Habitat Protection Plan. What does the blue crab have to do with the six major habitats defined by the plan? All are needed during its complex life cycle. Take away a habitat and the state’s number one fishery might be jeopardized. In fact, many fish use multiple habitats over the course of a lifetime. Different habitats provide refuge, spawning, foraging and nursery areas for many sea animals during their life cycles. Right: Trawlers in Swan Quarter Harbor. THE PAMLICO SOUND: Fishing Gem of North Carolina B Y S H A R O N B . S E T T L A G E Jimmy Johnson coastwatch | summer 2012 | www.ncseagrant.org 13 fishing 14 coastwatch | summer 2012 | www.ncseagrant.org That’s why the North Carolina Coastal Habitat Protection Plan, or CHPP, defined the characteristics of these six habitats: • The water column is low in sediment and pollutants, and flows unobstructed, connecting the other aquatic habitats. • Shell bottom is made up of concentrations of living and dead oysters, clams and other shellfish. • Submerged aquatic vegetation, or SAV, consists of grasses and other plants that are always underwater. • Wetlands are commonly referred to as swamps or marshes. • Soft bottom is an unconsolidated, unvegetated, sandy or muddy base. • Hard bottom is a rocky outcrop found in oceans or rivers, often attracting a rich abundance of adult and spawning fish. Each was considered when the Strategic Habitat Area Advisory Committee recommended areas of excellence in North Carolina’s coastal plain for nomination as Strategic Habitat Areas or SHAs. The CHPP document, first published in 2005 and updated in 2010, calls for the nomination of SHAs. The Fisheries Reform Act legislated the creation of CHPP. Protecting and enhancing fisheries is the goal in identifying and caring for areas essential for fish reproduction and growth. The CHPP steering committee is made of representatives from Marine Fisheries, Coastal Resources, Environmental Management and Wildlife Resources commissions. The committee holds quarterly public meetings to evaluate strategies and hear research reports. In addition to division directors and N.C. Department of Environment and Natural Resources senior staff, a variety of state environmental officials frequently attend the meetings. “One of the driving goals of CHPP was to unite agencies and to unite divisions and departments within agencies that all have some responsibility for environmental quality that affects fish,” notes Pete Peterson, chair of the CHPP steering committee and vice-chair of the Environmental Management Commission. The committee established a systematic approach for the identification of the SHAs and divided the North Carolina coastal plain into four management regions. Region 1 assessment was completed in 2009. Region 1 includes the Albemarle and Currituck sounds and the Chowan River. The Pamlico Sound area, which includes its tributaries up to the fall-line near Rocky Mount, Roanoke Rapids and Smithfield and 3 miles of ocean waters from the shoreline, was chosen as the second region to examine due to its importance to North Carolina’s fisheries. Region 3 includes Core and Bogue sounds, and New and White Oak rivers. Region 4 includes the Cape Fear River and southern estuaries. Jen Weaver, a graduate fellow funded by both the N.C. Division of Marine Fisheries, or DMF, and North Carolina Sea Grant, was a key player in marking the SHAs for Region 2. Fellow Tim Ellis helped DMF with Region 1. • FISHING THE PAMLICO The Pamlico Sound, which is the largest body of water in the four regions, is known as the fishing gem of North Carolina. A multiplicity of habitat features contributes to the high diversity of the Pamlico system. This includes SAV, oyster-rich rocks and primary nursery areas for juvenile species. All six habitat types occur in the region and make it a prime spot for fishing. Just ask Capt. Adam Jones, owner of AJ’s Sea Duck and Trophy Swan Hunts. “Sometimes we catch and release 25 red drum in a trip,” Jones explains. He says that the fishing is best in late July to September when the red drum migrate with mullet into the sound. “Everything they need to support them is here,” he adds. It’s the same for the blue crab. “Blue crabs are unique in that they use all the habitats in the Pamlico Sound estuary,” comments David Eggleston, a Scott Taylor Map by Christine Jensen integrating coastwatch | summer 2012 | www.ncseagrant.org 15 North Carolina State University marine biolo-gist who has tracked blue crab movement with funding from state and federal research programs administered by Sea Grant. Blue crabs use soft bottom for overwintering and protection from predators. The young megalopa and crabs in the soft-shelled stage live in the SAV. Adults forage in hard bottom, shell bottom and wetlands. The water column is important as the crabs swim about. The females tend to stay in the more saline estuary, while the males may move up the less saline tidal creeks. They meet at the mouths of the creeks for mating. Wetlands, shell bottom and SAV not only directly provide habitat to animals like blue crab, but also are particularly important for improving water quality. They reduce erosion, filter water and slow wave activity. • INTEGRATING INFORMATION Over the course of years, DMF and other researchers have studied the North Carolina coast in an effort to map the many features important to state fisheries. Maps of the locations of important habitats helped identify the SHAs. Sea Grant and DMF jointly award a fellowship each year to an exceptional student to work on fisheries issues under the direction of aquatic biologist Jeff Buckel at NC State’s Center for Marine Sciences and Technology in Morehead City. Weaver, who has a Master of Environmental Management degree from Duke University, came on board as the DMF fellow to analyze fisheries monitoring numbers collected from the Pamlico Sound. These statistics would be part of a massive data collection used by the DMF with sophisticated computer software to nominate SHA locations. When her mentor at DMF found a position elsewhere, Weaver was able to step up to the plate. Her work experience primed her for tackling extensive data sets and also interacting with the various stakeholders in the SHA nomination process. She had held previous positions performing geospatial analysis in coastal wetlands during an internship with the Environmental Defense Fund and in her master’s research. Buckel has high praise for Weaver’s work. “The fellowship is designed such that a recent graduate from a master’s or Ph.D. program can see what it’s like at the front lines, but that’s usually at a distance. She was actually there. “Jen really went above and beyond her job description in this process. She came in and helped DMF out quite a bit more than they had planned. I was impressed with Jen’s knowledge and her ability to run the software and manage the large databases. She did a great job in the fellowship,” he adds. Most would be overwhelmed by the amount of data accrued by the DMF in order to analyze the coastal plain. In fact, the DMF maps designate the six major habitat features of the Pamlico Sound — and more. In order to determine which areas contribute to good fisheries, and which areas do not, one needs maps on positive and negative impacts. The positive aspects already have been mentioned; they are the six habitat types. But within each of these are subsets, such as estuarine and marine soft bottom, high-salinity and low-salinity SAV, and so forth. Other designations include primary nursery areas, fish abundance and the occurrence of rare species. The negative impacts, also called alteration factors, are human activities that may affect habitat quality or are indicative of reduced habitat quality, including areas of prohibited shellfish harvest, dredged channels, industrial waste, military targets, animal operations and more. “It’s one of the few examples where I’ve seen anything like it at the state level — where there’s been an effort to characterize habitats based on the anthropogenic alterations to an area,” Weaver says. Clockwise from top left: Map of the North Carolina coastal plain with the four areas delineated by the Strategic Habitat Area advisory committee. Region 2 SHAs were recently determined.. • Juvenile blue crab find refuge in SAV. • Jen Weaver at North Carolina State University’s Center for Marine Sciences and Technology at Morehead City. • The megalopa, or blue crab in the second larval stage, migrates into the estuary and is attracted to eelgrass. • An acre of submerged aquatic vegetation can support up to 40,000 fish and 50 million invertebrates. C o n t i n u e d David Eggleston Jeff Buckel NOAA a caution 16 coastwatch | summer 2012 | www.ncseagrant.org on dredging near SAV beds. Water quality has improved in the bay, due to a 1983 agreement that reduced allowable phosphorous and nitrogen input into the bay’s tributaries. These changes should improve water clarity for the SAV. Efforts also are being made to plant SAV in areas that once supported large beds but now are completely bare. North Carolina’s waters have lost SAV since pre-Colonial times, but the state has not seen die-offs like those in the Chesapeake. Beginning in 1981, various SAV mapping efforts have been done in North Carolina. The Albemarle-Pamlico National Estuary Program led an interagency effort to map SAV along the entire coast using aerial photography. The survey of the coast was published in 2011 and showed extensive areas of SAV along the sound side of the Outer Banks. In all, North Carolina supports more than 138,000 acres of SAV. In regards to the SHAs, the occurrence of SAV was considered highly important and as a result, almost all of the areas with significant SAV also are contained within a SHA. Although designation as a SHA itself now does not carry with it any regulation, there already are some regulations in place to protect SAV in North Carolina. Clockwise from top left: The waters of the Pamlico Sound support a diversity of life. • Shell bottom filters pollutants, slows erosion and is a prime fishing spot. • AJ’s Sea Duck and Trophy Swan Hunts takes fishermen into the Pamlico Sound for red drum. • Kayaks poised for take-off on the Pamlico Sound. • Wetlands support wildlife and also filter pollutants. • The CHPP covers offshore habitat that includes hard bottom, where fish congregate. Sabrina Varnum Courtesy VisitNC.com Sharon Settlage crunching • CRUNCHING NUMBERS Weaver input data on 24 alteration factors and 35 distinct habitat types into the site-selection program called MARXAN. MARXAN, officially known as MARine eXplicit ANnealing, is used worldwide to determine pristine natural areas. A doctoral student in Australia designed MARXAN and first applied it to the Great Barrier Reef of Australia. In order to input the data into MARXAN, Weaver divided the study area into hexagon areas of 124 acres each. She then calculated a score based on the amount of habitat and human alteration for each of the more than 19,000 hexagons that make up Region 2. A committee of fisheries specialists met to corroborate the MARXAN output based on expert knowledge of the region. In the end, 67 discrete areas were nominated as SHAs, representing 10 percent of the area of Region 2. Of the nominated SHAs, 11 percent are contained in federally or state-owned lands, areas already managed for conservation, or protected as primary nursery areas for fish. These include parts of Alligator River National Wildlife Refuge (NWR), Mattamuskeet NWR, Swan Quarter NWR, Cedar Island NWR and Cape Hatteras National Seashore. “It’s really great that North Carolina is incorporating the link between habitats and fisheries production in its management plans,” Weaver says. • THE CHESAPEAKE BAY: A CAUTION The Pamlico Sound is one of the largest estuaries in the United States, with a higher species diversity than the largest estuary, the Chesapeake Bay, according to a study published in 2006 in the journal, Science. SAV is a factor contributing to the productivity of the Pamlico Sound and other estuaries, such as the Chesapeake Bay. But, SAV is like the proverbial canary in a coal mine — it dies off when water becomes overloaded with nitrogen, phosphorous, pollution or sediment. Beginning in the 1960s, SAV declined precipitously in the Chesapeake Bay. As the SAV disappeared, so did the waterfowl that are dependent upon the plants for food. The year 2007 was the poorest blue crab harvest on record for the Chesapeake, and the U.S. Secretary of Commerce declared an economic disaster for bay-area watermen. Recognizing the importance of SAV, the U.S. Environmental Protection Agency funded biologists to conduct yearly aerial monitoring of Chesapeake Bay SAV. Because SAV is an indicator of good water quality, mapping provides a means to evaluate water health. This effort shows a slight increase in SAV since 1985, but it has not rebounded to pre-1970s levels. Guidelines to protect SAV in the Chesapeake include restrictions do now coastwatch | summer 2012 | www.ncseagrant.org 17 Sharon Settlage Adam Jones Courtesy VisitNC.com resources • WHAT TO DO NOW? The nomination of the SHAs in the Pamlico Sound area leaves many people in the region wondering what happens next. The N.C. Marine Fisheries Commission has approved the SHAs, but they do not become officially designated as a SHA until a regulation is needed. The commission who oversees the habitat is responsible for the management. For example, if a regulation is needed for water quality, then the Environmental Management Commission would be involved. Anne Deaton, habitiat specialist with DMF, emphasizes that management measures only will be considered when the entire coastal plain has been evaluated and “the state will welcome extensive public stakeholder involvement. “The intent is habitat protection and enhancement to promote sus-tainable fishing activity, not restrict it,” Deaton continues. Additionally, the approved SHAs will be “useful for local government to encourage land conservation and best management practices adjacent to sensitive SHAs,” she says. Deaton summarized that the comments were largely positive at a public meeting for input on Region 2 SHA nominations held in the N.C. Department of Environment and Natural Resources Washington Regional Office in October 2011. At the meeting, she reported that “the driving reason for conducting SHA analysis is because scientific literature indicates that protecting a network of priority habitat areas is an effective means of enhancing sustainable fisheries.” The meeting summary notes concern about potential fishing restrictions, particularly in Hyde County, where a large proportion of SHAs are sited. Others stated that “the selection of a large amount of area in Hyde County was a recognition of the significance and the uniqueness of the area.” One participant noted that the wetlands are “important for so many resources,” and that the “SHAs represent aquatic assets that the area needs to support the fishing and tourism industry.” A week after the meeting, the Hyde County Board of Commissioners passed a resolution contesting any regulation that comes about due to the SHA nominations. However, the designations of the SHAs are simply a recognition of valuable fish habitats, such as SAV and the other five habitats types that work together to support the state’s fisheries, Deaton explains. Peterson, CHPP committee chair, agrees. “The SHAs are a great example of where we need to think about working together, so our strategy is a holistic management effort,” he acknowledges. Resources To find out more about the Coastal Habitat Protection Plan, visit the NCDMF homepage at: www.ncfisheries.net and scroll to the link on N.C. Coastal Habitat Protection Plan. To see the North Carolina SAV map, go to the homepage for the Albemarle-Pamlico National Estuary Program at: www.apnep.org and follow the Resources link to maps. electing seafood can be mind boggling. Low in saturated fats and packed with healthful omega-3s, fish are definitely good for you. Except when they’re not. So what’s in your seafood that you might want to avoid? Some North Carolina scientists sought to answer a part of that question. Researchers from North Carolina State University and Duke University set out to determine mercury levels in fish commonly caught and consumed in North Carolina, recognizing that accurate local consumer information about seafood was lacking. Testing Local Seafood for Mercury B Y E - C H I N G L E E What they found about the fish and shellfish they sampled is good news to the ears — and stomachs — of local seafood lovers, fishermen and retailers alike. In general, the majority of seafood the researchers tested had low levels of mercury, lower than the U.S. Environmental Protection Agency’s consumption guidelines. In instances where researchers found samples with concentrations over EPA’s recommended levels, they were from fish that were known to be high in mercury. 18 coastwatch | summer 2012 | www.ncseagrant.org R I G H T : Mahi-mahi is a popular recreational catch. C o n t i n u e d coastwatch | summer 2012 | www.ncseagrant.org 19 Brian Efland 20 coastwatch | summer 2012 | www.ncseagrant.org NC State scientists studied mercury levels in commercial and recreational offshore fish, while Duke researchers tested inshore species for mercury and PCBs. Both projects were funded by the N.C. Fishery Resource Grant Program, which is administered by North Carolina Sea Grant. “This research focuses on providing information about locally caught species, which is as accurate as you can get to make your own decisions about North Carolina seafood. Further, the research focuses on mercury and PCBs, both contaminants often mentioned when discussing seafood choices,” says Marc Turano, who oversees FRG projects for Sea Grant. But the studies also were driven by another factor: to determine if regional and national seafood guides were serving local consumers. “There is a lot of confusion for those who attempt to purchase seafood,” Turano adds. “Most of this confusion surrounds how various groups determine their recommendations.” For example, Monterey Bay Aquarium, Food and Water Watch, and Blue Ocean have seafood watch lists that advise consumers what seafood to eat based on their definition of sustainability and their position on catch methods, with indicators for species considered high in mercury. However, these lists are based on nationwide or regional information. The researchers wanted to provide specific data on North Carolina seafood. “We’re advocating for, whenever possible, providing consumers with local information for seafood consumption,” explains Derek Aday, a faculty member in NC State’s biology department. However, the final decision about what to eat is not his to make. “Our job isn’t to tell people how to act,” he says about his role as a scientist. Instead, it’s “to give as much information as we can give so that, within their own sort of constraints, their own feelings about risk tolerance, they can make informed decisions.” The level of mercury that consumers will accept varies from person to person. “The bottom line is that everybody has a different level of risk tolerance,” Aday observes. TESTING MARINE FISH Mercury occurs naturally in the Earth’s crust but the majority in the environment is from human actions, such as coal-fired power plants, mining activities and industrial discharge. It is a neurotoxin. High doses can damage the brains and nervous systems of fetuses, babies and young children. In aquatic systems, mercury can be converted into methylmercury, a form that can be absorbed and stored, or bioaccumulated, by fish and other sea creatures. There are several drivers of mercury accumulation in fish, mainly size of the animal, its trophic level or location in the food web, and pH of the water where it is found. The main source of human exposure to mercury is through seafood. There are several reasons why mercury content differs in fish. You are what you eat applies to fish too. “If you’re at the top of the food chain and you’re eating a lot of other fish, then your body’s burden is representative of the food that you’ve been consuming over the course of your life,” Aday explains. A fish that is high in the food web likely eats other fish and invertebrates, further concentrating mercury in its body. Furthermore, size — or length, in this case — matters. “The bigger you are, the longer • A B O V E : Mullet are a white or light-colored fish, with a light to moderate flavor. • B O T T O M L E F T : Gray triggerfish have three spines in their first dorsal fin that can be used as a defense against predators. • B O T T O M R I G H T : Juvenile red porgy, such as the pair pictured, are female but will change sex to male as they grow. Vanda Lewis NCSG file photo Marc Turano results reflected the conditions in local waters. To find out, Freitag divided the state into north, central and south fishing districts and collected samples from each region. She selected inshore species that she could pinpoint to a particular location and that represented “a traditional fishing cycle,” allowing her to conduct her work throughout an entire year. Freitag, who blogs on science topics as Bluegrass Blue Crab on Southern Fried Science (www.southernfriedscience.com), also checked for PCBs, chemicals that can cause cancer and other health problems. The team, led by Duke zoology faculty member Dan Rittschof, tested hard and soft crabs, clams, white and pink shrimp, oysters, spot, and mullet — all small, short-lived and low trophic-level species — from local sources. The people who provided samples received a report on the mercury and PCB content of the seafood they provided. “It turns out that we’re much cleaner than the national recommendations. On an average of 10 times less mercury,” Freitag says. And PCB levels were very low too. More than 97 percent of her samples had mercury and PCB concentrations below EPA and FDA levels of concern. “Only a handful of the samples in the study turned out to be unsafe to eat. And of those, you’ve been around to accumulate mercury,” he adds, noting that there’s often a correlation between size and age. “Most of the time, being really big means that you’re old. But being really big also means you’ve eaten a lot of food to get to that size. And so mercury can be a problem from that standpoint.” Aday led a team that studied popular offshore species landed in North Carolina. They sampled mahi-mahi, king mackerel and wahoo from recreational anglers off Dale Britt’s charter boat, Sensation, that is based in Morehead City. Additionally, they collected red porgy, red grouper and gray triggerfish from a Carteret County fish house, popular fish that were available at that time. The researchers tested the samples for mercury and compared their results to EPA and U.S. Food and Drug Administration mercury advisory levels. The EPA’s mercury action level is no more than 0.3 milligrams of mercury in each kilogram of fish or shellfish. The EPA will issue seafood consumption advisories if mercury is above that limit. The FDA draws its line at 1 milligram per kilogram. Beyond that, the FDA can take legal action to remove the contaminated food from the marketplace. “Sometimes our fish were much lower in mercury than what those guidelines would suggest and sometimes they were much higher in mercury than what the guidelines would suggest,” Aday explains of both federal limits. His team found that porgy, triggerfish and mahi-mahi were consistently safe to eat, with mercury levels well below EPA consumption recommendations. The wahoo and grouper they sampled often exceeded EPA’s — but not FDA’s — levels. The king mackerel they tested consistently surpassed both EPA and FDA advisory levels. DECONSTRUCTING THE ’DIRTY DOZEN‘ The Duke study originated from a question posed by Mark Hooper, a crabber from Smyrna. In summer 2009, he noticed that blue crabs and oysters — two of the state’s largest commercial fisheries — were on Food and Water Watch’s so-called dirty dozen list because of mercury concerns. He wanted to find out if that was true for North Carolina. “And we didn’t have a really good answer,” recalls Amy Freitag, a doctoral candidate in marine science and conservation at Duke. “It turns out that most of the studies that had been done had either been in the Chesapeake or in the Gulf of Mexico.” She was unsure if those coastwatch | summer 2012 | www.ncseagrant.org 21 C o n t i n u e d • A B O V E : Sally Petre takes a thumb-sized sample from king mackerel to test for mercury. • L E F T : Duke University researchers took samples from this oyster lease for their mercury and PCB study. Amy Freitag Courtesy Sally Petre 22 coastwatch | summer 2012 | www.ncseagrant.org most of them came from known areas of contamination that are not usually open for harvest anyway,” she adds. “So in terms of what’s getting into the market, it seems to be pretty safe.” Contamination levels were mostly location based. Seafood found in developed areas or near peat bogs, which are a source of natural mercury, had slightly elevated levels of mercury. Fish harvested near landfills or Hewletts Creek, which has experienced sewage spills, had higher PCB concentrations in their system. In light of the results, Freitag explains that ecological, rather than political, boundaries are better suited for these guidelines. “Water body seems to be really important, not states, not fisheries regions,” she notes. Hooper, who has worked on other FRG projects, was curious about the quality of seafood from his area. “It was a little bit risky in that, if we had found contaminants, you’re really going to have to own up to that,” he reflects. “But in my opinion, the seafood was either gorgeous, like I know it is, or it’s contaminated,” he continues. “And if it’s contaminated, then we’ve got some issues that we need to deal with. If the crabs in Core Sound have PCBs and mercury, then we’ve got a larger problem that we need to start to address. So I didn’t mind taking that kind of chance, from my point of view, and putting the stuff out there.” RULES TO EAT BY Hooper is an avid seafood fan, making it a point to eat it regularly. His record is 60 consecutive days. And he’s not above using himself and wife Penny, who is a biology instructor at Carteret Community College in Morehead City, as test subjects. He’s had their hair checked for mercury. The results show that they have very low levels in their system. “I think my point stands that this water here, the water quality is spectacular, especially on Core Sound. We’re bounded by a national seashore. There’s only 10 of these in the nation,” he marvels, citing Cape Lookout National Seashore. But what about the rest of us who don’t have access to fish fresh off the boat? In addition to EPA and FDA fish consumption guidelines, Aday has a couple of rules of thumb for the consumer who wants to select a fish with lower mercury content. First, stay away from fish that are longer lived or at the top of the food chain. Second, within a species, pick the smaller specimens. Freitag notes that her results say that inshore fish, which tend to be lower in mercury than their offshore cousins, are a safer bet. Many local fishermen would agree. “Most fish we use are smaller, inshore fish,” says Eddie Willis, who is part of the Core Sound Seafood cooperative where a group of fishermen combine their catch to provide shareholders with a weekly supply of locally caught seafood. And even when it offers offshore fish, the co-op selects smaller specimens. Freitag says her study also highlights the need for consumers to understand the nuances of food. “I’m looking at it as more of a support for traceability of food and understanding where it comes from and the risks associated with that particular place,” she notes. PUTTING IT ON THE PLATE At a time when anyone with a smartphone can download an app to find out what seafood to eat according to national seafood guides, local information is lacking. And often, national or regional guides paint with a broad brush, using data from a handful of samples and extrapolating that information to a larger area when water quality can vary greatly between neighboring water bodies. Nor do they list all the seafood a consumer can find in North Carolina. • A B O V E : Eddie Willis offers species such as clams, crab and mullet at his fish house. • R I G H T : Oysters can be prepared many ways — including, baked, roasted or steamed. Vanda Lewis Sarah K. Amspacher coastwatch | summer 2012 | www.ncseagrant.org 23 “These national averages and these regional guidelines do have a purpose, and they are relatively informative. But when it comes to local consumption advisories, particularly for mercury, local information is really important in determining consumer risk,” comments Dana Sackett, then a post-doctoral researcher at NC State and part of Aday’s team. Aday agrees. “The take-home message is that whenever we can provide local information to consumers, that will be more reliable than regional and national guidelines that are currently most available.” Local contaminant levels might not always match those stated in regional and national guidelines. For example, one guide says that blue crabs may contain unhealthy levels of mercury and PCBs but that’s not what the Duke study found for crabs in North Carolina. Certainly, navigating seafood consumption guidelines can ruin anyone’s appetite. And there are some who have sworn off seafood because of the confusion around making selections. However, Aday encourages consumers to persevere. “A lot of studies suggest that the benefits of fish consumption outweigh the risks, so unless you’re eating multiple meals per day for a long period of time — if you’re not a nursing mother and you’re not a young child, and unless they’re talking about the really, really high-mercury species like shark and tilefish and king mackerel — then probably regular fish consumption is a good thing,” Aday notes. And Sea Grant’s Turano is helping get the word out by condensing the data from these projects into a brochure. “The pamphlet is a consumers’ digest version of the study results, providing summary data from the study on mercury in locally harvested fish. We are trying to arm the seafood consumer with the most up-to- date information to make the best decisions about buying seafood,” he says. “In the end, North Carolina’s seafood is safe to eat.” Hooper, however, does not need convincing. “In my opinion, this is the finest food on earth. To be able to have access to locally caught, fresh seafood from these waters is spectacular. And with that comes the responsibility on my part to make sure that I handle it as best as I possibly can,” he muses. “And just hope that you people enjoy it and just have a good night when you eat it. Kinda think of us a little bit.” RESOURCES The N.C. Division of Water Quality is in the process of developing a statewide total maximum daily load, or TMDL, for mercury. Officials will estimate the proportions of mercury contributions to water and fish from different sources and determine the appropriate reductions needed. Public comments to the TMDL were to be accepted until June 11. The DWQ monitors the state’s surface water and groundwater. For more on the TMDL, visit: portal.ncdenr.org/web/wq/ and search for “mercury TMDL.” • To view the final Fishery Resource Grant reports, go to: www.ncseagrant.org and search for 10-ST-02 for the NC State project, and for 10-EP-07 for the Duke study. • Download Turano’s Blueprint at: www. ncseagrant.org/s/mercury. • For EPA and FDA recommendations about mercury in seafood, go to: www.epa. gov/waterscience/fish/advice. • A B O V E : Blue crabs are one of the top fisheries in North Carolina. • B o t t o m L e f t : Pink shrimp await buyers at a fish market. • B o t t o m R i g h t : Atlantic wahoo can grow up to 8 feet and weigh more than 150 pounds, with a life span of 5 or 6 years. Ray Midgett Vanda Lewis Marc Turano SONG ACROSS THE WATER N A T U R A L I S T ’ S N O T E B O O K PAT MOORE HAS BEEN BIRDING FOR MORE THAN 50 YEARS — AND AT 84 YEARS OLD SHE IS STILL ACTIVE IN BIRDING ACTIVITIES ON THE OUTER BANKS. “I remember searching for birds before we had the technology that allowed the playing of bird calls while in the field,” she recalls. “I learned their songs by listening to them until I could remember each one. Then I would go home, put a record on my turntable, and match the songs to my memory of them. I can still identify most of them by memory. Much of my pleasure birding in the field comes from hearing and recognizing songs while envisioning the singers.” The North Carolina coast is widely known for dozens of species of gulls, waterbirds and shorebirds. However, many who visit the region miss the chance to see — and hear — some of our state’s most hidden treasures: songbirds of the coast. Whether deep within maritime forests or in undergrowth and trees a few miles inland or even on the Outer Banks, these songbirds are worth going a little out of the way to find. • PAINTED BUNTING Seeing a painted bunting for the first time is an experience few birders forget. John Carpenter, coastal landbird biologist for the N.C. Wildlife Resources Commission, says that its brilliant plumage “makes it the kind of bird you’d expect to see in a tropical rainforest, and yet it can be seen throughout the coastal region of North Carolina, down to Florida, as well as across the Gulf Coast.” Though the painted bunting is known more for its stunning feathering, its song is almost as beautiful. It has a bright, pleasant sound, similar to a warbler’s call, with a sharp chip note at the end. The male painted bunting has a vibrant indigo streak along the top of its head, with a bright red underbelly and patches of lime green and yellow along its back. Females (and juvenile males), though significantly less colored, still sport a bright green back with a pale yellow underbelly. Painted buntings are a monogamous species. They nest in low vegetation, such as shrubs, and generally lay three to four light gray eggs, speckled with brown. The female incubates the eggs for about 11 to 13 days. The young birds are usually ready to leave the nest at around two weeks old. The best time of year to see these birds along the coast is in the summer. They can be found in open brushlands, hedges, yards and thickets. Painted buntings are ground foragers, so look for them in low-level areas. 24 coastwatch | summer 2012 | www.ncseagrant.org A Song Across the Water B Y M E G A N S H A R P ABOVE: Male painted buntings are some of the most brilliantly colored birds in North America. BELOW RIGHT: The female painted bunting and juveniles are green. Jeff Lewis Jeff Lewis N A T U R A L I S T ’ S N O T E B O O K coastwatch | summer 2012 | www.ncseagrant.org 25 • BOAT-TAILED GRACKLE People have always had mixed feelings about grackles. Their pervasive and seemingly destructive habits, along with their large stature and loud, piercing song — a serious of sharp, guttural thrills of chek notes and whistles — have all combined to make them less than popular. “Their tails imitate the stern of a boat, large and fanned out behind them,” says Jeff Lewis, garden and greenhouse manager for the Elizabethan Gardens in Manteo. “It’s hard to believe that they can actually fly with such odd proportions. Between that and their obnoxious song, you can’t miss them.” However, most birders would say that these birds are simply misunderstood. In her book, titled 100 Birds and How They Got Their Names, Diana Wells says that, Swedish immigrants who sought to farm in America’s heartland were constantly doing battle with ABOVE: A female boat-tailed grackle is lighter in color, with a brown head. RIGHT: Two male boat-tailed grackles display their iridescent coloring in the sun. these “corn thieves.” Grackles flooded their farms in numbers that made it impossible to see the ground where they were feeding. The farmers soon realized, however, that the grackles were eating the worms and grubs that did far more damage than the birds ever did. The corn lost was eventually considered to be their “tithe” to the birds. Grackles often nest in reeds or small shrubs that are over the water. The coastal waters of North Carolina are prime habitats for them. They lay one to five eggs that are generally light blue with brown and black scrawls. Fledglings that fall out of the nest and into the water can swim well for short distances, using their wings as paddles. Though the males appear to have a plain black coloring, the boat-tailed grackle actually possesses an iridescent quality to their feathering. When seen up close in the sunlight, their color changes from shimmering blues and purples to greens and bronze. This remarkable sight was enough to make John Audubon write that “no painter, however gifted, could ever imitate them.” • SEASIDE SPARROW As the name implies, the seaside sparrow is “found only on the Atlantic and Gulf coasts,” Lewis says. “This makes North Carolina’s coast a prime place to see them.” It is a stocky songbird, with a short tail and large bill. Its song matches its size — short and muffled with a piercing buzz at the end. C o n t i n u e d Jeff Lewis Walker Golder 26 coastwatch | summer 2012 | www.ncseagrant.org The seaside sparrow, like most sparrows, is rather drab, with olive-gray feathering, black whisker marks and a white throat. However, near both of its eyes, the seaside sparrow has bright streaks of vibrant yellow. In her book, Wells indicates that its French name, moineau, means “a monk,” given for its dull, cowl-like feathering. The English name “sparrow” comes from the Old English word spearw, which translates to “a flutterer,” and accurately describes its quick, haphazard movements. The bird is built for speed and endurance, because it generally nests a good distance away from its food source. Seaside sparrows usually lay two to five eggs per clutch and tend to nest in shrubs. The eggs are bluish white with blotches of brown, which are generally more concentrated at the larger end. They can best be seen on the coast of North Carolina in the summer months. Look in tidal reeds, rushes and salt marshes, especially those with spartina grass. • THE NORTH CAROLINA BIRDING TRAIL Organizers of the North Carolina Birding Trail describe it as the greatest asset to birders in the state. This trail links 310 birding sites from the coast to the mountains. The sites range from national parks and bird sanctuaries to private residences. The requirements? They have to have lots and lots of birds. Lena Gallitano, former president of Wake Audubon Society, was a leader among the team who introduced the birding trail to North Carolina. “It’s the only trail in North Carolina that connects the entire state and is available for the public to go out into nature,” she says. “It’s a wonderful addition to our state.” The North Carolina Birding Trail has three guidebooks to help direct birders along the trails. Each book — one each for the mountains, piedmont and coast — gives detailed information about each site, as well as what birds can be seen. The birding trail not only provides valuable resources for birders and conservationists, but also helps support economic development. Local restaurants and shops located around various sites have teamed up with the birding trail to offer services to visiting birders. Visitors are encouraged to leave “birder calling cards,” which are printed in the back of each guidebook, to let business know that they were referred there by the birding trail resources. “It is providing a service to birders, helping local economies and promoting wildlife habitat conservation,” says Jack Thigpen, North Carolina Sea Grant extension director. He was part of the group that helped create the birding trail. N A T U R A L I S T ’ S N O T E B O O K ADDITIONAL INFORMATION AND LINKS • Audubon North Carolina, nc.audubon.org: This website gives extensive information on local birding events, conservation and how to join your local chapter. • The Cape Fear Audubon Society, www.capefearaudubon.org: This site has information on birds, environmental education and birding events along the southern coast. • Painted Bunting Observer Team, paintedbuntings.org: Developed by a group of University of North Carolina Wilmington researchers and citizen scientists dedicated to preserving this amazing bird, this site provides a detailed overview about the status of the painted bunting in North Carolina. • The North Carolina Birding Trail, ncbirdingtrail.org: Gather information about various sites along the birding trail and the specific birds that can be seen in North Carolina. Trail guides can be ordered from UNC Press at: uncpress.unc.edu or from your local bookstore. • The Cornell Lab of Ornithology, www.allaboutbirds.org: This site acts as a virtual, interactive encyclopedia on birds. Search hundreds of different species of birds, listen to each of their sounds, stream live video of young hawks as they hatch, and flip through stunning photos of falcons in flight. BEGINNER’S WARM WEATHER BIRDING KIT According to Jack Thigpen, North Carolina Sea Grant’s executive director and a birding hobbyist, the best way to get started in birding is to go with a group or someone who is experienced. “I always learn a lot about identifying by sight and sound from people who know more,” Thigpen advises. “I also recommend searching online for your locality with the word ‘birding.’ You might be surprised how many local resources are available.” A basic kit would include a good pair of binoculars, a birding field guide, a camera and notepad. Also, don’t forget sunscreen and insect repellent, as well as a hat. And finally, wear comfortable all-terrain boots and long pants. • CONSERVATION IS KEY Currituck County’s name reflects its avian tradition — it was derived from the Native American word “coratank,” meaning “wild geese.” There was a time when locals claimed to see so many wild birds in flight that they blackened the sky with their wings. Today, Currituck is still full of little treasures for birders, conservationists and tourists alike. Efforts include the Donal C. O’Brien, Jr. Audubon Sanctuary and Center of Pine Island in Corolla. Though still in its early stages, this 3,000-acre sanctuary eventually will be equipped with a large center where visitors can learn about the island, marsh, Currituck Sound and the birds that inhabit it. Walker Golder, the deputy state director for Audubon North Carolina, says that this endeavor “will be a place where we will engage the community and conduct scientific research, which will hopefully result in improved protection efforts for the Currituck area.” ABOVE: The seaside sparrow has dull coloring, except for the streaks of yellow around its eyes. Jeff Lewis coastwatch | summer 2012 | www.ncseagrant.org 27 FUEL SAVINGS C U R R E N T S AS MARINA FUEL PRICES CONTINUE TO RISE, RECREATIONAL AND COMMERCIAL BOATERS ARE — BY NECESSITY — SEEKING WAYS TO DECREASE OPERATING COSTS AND INCREASE FUEL EFFICIENCY. Compared to automobiles, boats are not efficient. For example, a small 18-to-21-foot outboard vessel with a fuel tank capacity ranging from 20 to 50 gallons averages 4 to 8 miles per gallon. A twin-engine offshore vessel with a fuel tank capacity ranging from 80 to 200 gallons may average only 1 to 3 mpg. In either case, a boater may suffer sticker shock at the pump this season with fuel prices potentially exceeding $4 per gallon at marinas in North Carolina. The following fuel saving tips should help boaters save money on their next boating trip — whether it is an offshore fishing excursion or an inshore cruise: • Find the optimum cruising speed: Every boat has a cruising speed at which a certain engine power and vessel trim, or the angle of the boat in relationship to the surface of the water, will result in maximum efficiency. A GPS unit linked to a fuel flow meter can calculate fuel economy automatically. This enables a boater to adjust power and trim settings based on sea conditions. • Maintain the vessel: A properly maintained engine produces power more efficiently. Follow manufacturer-recommended maintenance schedules for fuel filters, water separators, oil changes, valve adjustments, etc. Be certain the propeller is the correct one for the vessel. Propeller diameter, pitch and the number of blades all can affect fuel efficiency. This information is available on engine or vessel manufacturers’ websites. • Reduce weight: One of the easiest ways to increase efficiency is to leave nonessential items at the dock. It takes 2.5 extra horsepower to plane each additional 100 pounds, and an extra gallon per hour of gasoline is burned for each additional 400 pounds in passengers, fuel and gear. However, no fuel savings is worth omitting safety equipment. Check Coastwatch Spring 2012 for an article on boating safety. • Clean vessel bottom: Marine fouling, such as barnacles and slime, will induce unnecessary drag on a vessel and decrease fuel efficiency rapidly. If the vessel is moored in a wet slip, use the proper bottom paint for the hull composition and marine environment. Check with a marine supply provider, or do online research, regarding eco-friendly bottom paints to decrease impacts on the marine environment. • Use good seamanship: Take advantage of favorable sea conditions such as a following wind or tide to decrease engine load. Steer a straight course for the shortest path to your destination. Use autopilot if available to minimize oversteer. • Search for best marina gas prices: Marina fuel prices can vary considerably, so check fuel prices via VHF radio or cell phone before you fill up. • Use green recreational fishing methods: For inshore waters, use alternate methods to reach the fishing grounds, such as paddle fishing from a kayak, paddleboard or canoe. These methods are good for your health while providing a quiet, shallow fishing platform that enables you to reach remote backwater areas. To download Paddle Fishing: An Introductory Guide, visit: www. ncseagrant.org and search for “paddle fishing.” Read about paddle fishing in the Holiday 2008 issue of Coastwatch. For more fuel-efficiency tips, visit: seagrant.uaf. edu/fuel. Order a copy of Buying a Recreational Fishing Boat from: www.ncseagrant.org. Cruising to Fuel Savings Paddling may not be the quickest way to get from here to there, but it saves on fuel costs. B Y B R I A N E F L A N D Nate Bacheler Brian Efland Nate Bacheler Brian Efland Currituck County Goes Green B y S h a r o n S e t t l a g e R Currituck Goes 28 coastwatch | summer 2012 | www.ncseagrant.org P E O P L E A N D P L A C E S educe water runoff, slow it down, and soak it up with plants. This was a central theme in the Currituck Sound Water Quality Fair held in April at the Currituck Rural Center in Powells Point. Barbara Doll, water quality specialist with North Carolina Sea Grant and chairperson of the event, is pleased with the interest generated. “Currituck County has worked hard, along with support from Sea Grant and other organizations, to launch an effort to protect its natural resources and reduce waste and energy use. The fair provided an opportunity to celebrate the achievements made so far, as well as the county’s vast and vital natural resources,” she says. Sea Grant cosponsored the one-day event, along with Currituck County Cooperative Extension, the N.C. Coastal Federation and the University of North Carolina Coastal Studies Institute. Some visitors enjoyed the fair while paddling the waters of the Currituck Sound in brightly colored kayaks. Others talked with extension agents and representatives from various organizations who touted the benefits of delivering clean water to the sound. Plants, and their abilities to filter water runoff from impervious surfaces, were a big draw. Visitors were given water-loving plants, such as mallow or sedge, to plant alongside a pond. The plants provide beautification and filtration benefits, while attracting and supporting wildlife. Plants also were the star feature in a rain garden demonstration. Workers and volunteers installed muhly grass, blueflag irises, and other perennials and shrubs in a garden adjacent to an asphalt parking lot. The slightly concave garden will absorb and filter water runoff before it enters the sound. A representative from the North Carolina Aquarium on Roanoke Island displayed native wetland species including ferns and asters. A raffle winner went home with a healthy Virginia sweetspire donated by the aquarium. Children got their hands wet at a Division of Water Quality demonstration. Representatives had constructed miniature wetlands to show how water is better filtered by a rocky shoreline Graphic based on a photo by Cameron Lowe Sharon Settlage Sharon Settlage Sharon Settlage Sharon Settlage Sharon Settlage Sharon Settlage LEFT TO RIGHT: Fairgoers speak with Anne Deaton about strategic habitat areas. • Paddlers practice. • Eco-friendly cleaning products keep pollution out of Currituck Sound. • A Division of Water Quality representative displays wetland models. • Wayne Twiford Sr. speaks to the audience. • Barbara Doll plants a tree in a rain garden. • A fountain aerates the pond at the Currituck County Cooperative Extension Center. • A freshwater turtle suns itself. • Coreopsis in bloom at the pond’s edge. Green coastwatch | summer 2012 | www.ncseagrant.org 29 P E O P L E A N D P L A C E S combined with grasses instead of a bulkhead built at the edge of a body of water. They also showed how water pollution can find its way to the sound. Capturing rainwater from your roof never looked so easy. Mitch Woodward of N.C. Cooperative Extension exhibited not only the standard rain barrel, which holds about 50 gallons of rainwater, but also 200-gallon barrels and larger cisterns that easily can be equipped with a pump for washing cars. He explained how cisterns can fill quickly from a 2-inch rain event, even on a relatively small roof. Guests were treated to the memories of Currituck Sound by Wayne Twiford Sr., a 74-years-young Currituck native. Twiford told of days of duck hunting in the marshes along the sound. “We could run up the creeks in a motorboat, the grass beds were thick… Now you can’t get up the creeks they have eroded so badly,” he said. “The grass beds aren’t here anymore, they were food for huge rafts of coots, which were a staple for local people. Bass fishing was extremely good,” he added, noting that “this was the bass fishing capital of the country.” Finally, he recounted peaceful nights listening to geese and swans. Cameron Lowe, Currituck County extension director, informed attendees of how the county is now a leader in environmental stewardship. She spoke of a process that started in 2008 with a survey of residents. Respondents listed the environment as the primary concern for the county. Thus, the Currituck County Goes Green initiative started. Currituck County leaders partnered with the county’s Cooperative Extension and Gloria Putnum, Sea Grant coastal resources and communities specialist, to help adopt a program that included sustainability projects and policies. They enlisted Doll’s expertise in wetland restoration, and constructed a wetland and wildlife garden at the Currituck County Cooperative Extension Center. See Coastwatch Holiday 2010 for more information. The pond is now home to turtles, egrets, and wetland plants that were just awakening from winter when Sea Grant specialists and county extension agents checked on the pond in April. Numerous Coreopsis flowers were beginning the process of budding, promising a glorious yellow display into the summer. Back at the Rural Center, fairgoers signed the Currituck County Going Green Pledge for Clean Water. Registrants agreed to use minimal fertilizer and rain barrels, and to add native plants alongside streams and shorelines, among other environmentally friendly activities. Sharon Settlage Sharon Settlage Cameron Lowe Sun, Moon and Raven 30 coastwatch | summer 2012 | www.ncseagrant.org S E A S C I E N C E THE TLINGIT PEOPLE FROM THE PACIFIC NORTHWEST EXPLAINED THE TIDES IN A STORY. The old woman who controlled the water level lived at the edge of the Big Water. She held the tide line tightly across her lap, not letting the Big Water move in and out. Raven, the trickster, and his people enjoyed eating all the good things that washed up on the shore of the Big Water. As the population grew, there was not enough food on the shore to feed everyone. The people sent Raven to trick the old woman into letting go of that line so the water would fall and the people could eat the good things beneath the water. Raven kicked sand into the old woman’s eyes, causing her to drop the tide line. The water fell and the people ate lots of food. But because the water stayed out so long, many creatures from the Big Water began to die. Once again, the people didn’t have enough food, and Raven was sent to remedy the situation. He offered to help the old woman clean the sand out of her eyes if she would let go of the tide line from time to time so the people could eat the water creatures. That compromise worked, and that’s how the tides began. What a lovely, visual explanation. Today, we know that the cyclical ebb and flow of the ocean is caused not by an old woman holding the tide line, but rather by a complex combination of influences. They are: • Astronomical, having to do with the moon and sun; • Meteorological, dealing with weather and atmospheric conditions; • Oceanographic, depending on bathymetry/topography or shape of the ocean bottom; • Geographic, having to do with location on the Earth; and • Hydraulic, dealing with the movement of water. ASTRONOMICAL INFLUENCES The major players in this tide equation are the gravitational pulls of the moon and the sun, along with the rotation of the Earth. Although the sun is 27 times larger than the moon, it also is farther away from Earth. The sun is 93 million miles from the Earth, while the moon is only 250,000 miles away. Because of its proximity, the moon has more influence on our tides. The simplest explanation of the tides involves imagining the Earth covered by water, with no continents. When the gravitation of the moon pulls on the ocean water, it causes a bulge in the ocean surface facing the moon. See the illustration on the next page. There is an equal bulge on the side opposite the moon due to centrifugal force and inertia, causing elliptical tidal bulges. These bulges are the high tides. Now, think of a single point on Earth, such as near Cape Hatteras. As the Earth rotates, this location moves through two bulges — and experiences two high tides — in a 24-hour period. For example, on Tuesday, May 15, 2012, a high tide at Cape Hatteras occurred at about 4:03 a.m. Low tide happened at 10:17 a.m. The next high tide was at 4:45 p.m., followed by another low tide at 11:02 p.m. It takes about 12.5 hours from one high tide to the next high tide, and a little more than six hours between high and low tide. Check any tide table for Rolling with the Tide: Sun, Moon and Raven B Y T E R R I K I R B Y H A T H A W A Y Courtesy VisitNC.com Courtesy VisitNC.com coastwatch | summer 2012 | www.ncseagrant.org 31 S E A S C I E N C E C o n t i n u e d North Carolina and you will notice similar intervals. This is because as the Earth rotates on its axis while the moon revolves around the Earth in the same direction, the bulges shift to stay aligned with the moon’s movement. A full rotation of the Earth takes 24 hours — a solar day. But because the moon is orbiting while the Earth spins, it takes a little longer than one solar day for the same point on the Earth to rotate and catch up with the moon-caused tidal bulge. Thus, a lunar day, or the time between moonrises, is 24 hours and 50 minutes. This time difference between solar and lunar days explains why tides don’t occur at the same time in the same location every day. High and low tide heights vary during each month. Spring tides, or the highest highs and the lowest lows, occur during a new moon or a full moon, when the tidal bulges of the moon and sun are lined up (yes, the sun causes bulges too). In spite of their name, spring tides happen in all seasons. Neap tides, which are the lowest highs and the highest lows, happen during the quarter moons, when the moon and sun are pulling their bulges at right angles to each other. A lunar month is 29.5 days. That’s the amount of time it takes for the moon to go through its four phases — new, first quarter, full and last quarter — and return to the new moon. Thus, spring and neap tides occur approximately every two weeks. TIDAL VARIATIONS There are three types of tidal patterns, as shown in the graphic on the next page. The difference is caused by a combination of ocean basin shape, size and depth, in addition to the adjacent landmasses. The most common pattern is semi-diurnal, with two high tides and two low tides, roughly equal in height, in a 24-hour period. Most of the coasts on both sides of the Atlantic exhibit semidiurnal tides, as well as Greenland and northern Europe. One high and one low tide daily is known as a diurnal tide pattern. Parts of the Gulf of Mexico have diurnal tides, along with southwest Australia and parts of Antarctica. ABOVE: Position of sun, moon and Earth during spring tides (top) and neap tides (bottom). LEFT: Although the sun is 93 million miles away, it plays a role in our tidal changes. BELOW, CLOCKWISE FROM TOP LEFT: The wrack line, debris left behind by high tide, is a great place for beachcombing. • Low tide usually leaves a nice flat beach on which to play. • People, as well as shores birds, coquina clams, and mole crabs, make use of the intertidal zone. • Tides are waves of water that rotate around the ocean basins. Courtesy VisitNC.com Courtesy VisitNC.com Courtesy VisitNC.com Lisa Gardiner/Windows to the Universe Mixed tides exhibit both semidiurnal and diurnal characteristics. Usually semidiurnal in frequency and unequal in height, mixed tides can exhibit a diurnal frequency at times. This tidal pattern is demonstrated along most of the Pacific Coast in the U.S. and in Asia, the Caribbean, and parts of the Indian Ocean. The tidal range is the difference in height between high and low tides. In North Carolina, the range averages 3 feet. Compare that to the tidal range in Georgia, which is about 8 feet. The large difference in tidal range between North Carolina and Georgia is due to the location of the two states in the South Atlantic Bight, a region that lies between Cape Hatteras and Cape Canaveral. It is shaped like an inverted V, with Georgia at the high point and Florida and North Carolina at the deeper ends. As the Earth rotates into the high tide bulge, the shallow continental shelf around Georgia causes the water to pile up faster and higher. A tidal range of 2 to 4 feet is typical for Florida and North Carolina. In Nova Scotia’s Bay of Fundy, the tidal range is about 40 feet. If it’s difficult to imagine that amount of water rising and falling within a few hours, search for “Bay of Fundy tides” on YouTube and enjoy some fascinating videos. In some places, the tides move so much water that large waves, known as bores, are created. Also search on YouTube to watch people surf the powerful “Pororoca” or “Roar of the Amazon.” VALUE OF TIDES Why are tides important? A plethora of people and industries depend on tide predictions, including the shipping community, the military, cruise ships, ferry systems, and commercial and recreational fishermen, as well as engineers who design bridges and docks. Of course, surfers and recreational boaters watch tides too. Even educators base their field-trip schedules on tide predictions. In addition, many marine and estuarine animals, such as horseshoe crabs, mole crabs, grunions and sea turtles, also rely on tidal cycles — and they don’t use man-made tide tables. Their adaptation to lunar rhythms and tidal cycles is the subject of continuing research. Always remember the difference between a tsunami and a tidal wave. A tsunami is a large destructive wall of water that is created by volcanic eruptions, earthquakes or landslides that occur beneath the ocean. It has nothing to do with the tides. The tides are waves of water that rotate around the ocean basins that are created by the gravitational pull of the moon and sun. As a final note: Why did the eel cross the road? To get to the other tide! S E A S C I E N C E 32 coastwatch | summer 2012 | www.ncseagrant.org ADDITIONAL RESOURCES Check out these publications and websites for more information on tides. READ • Koppel, Tom. 2007. Ebb and Flow: Tides and Life on Our Once and Future Planet. Tonawanda, N.Y.: Dundurn Press. ISBN 978- 1-55002-726-6. • McCully James Greig. 2006. Beyond the Moon: A Conversational, Common Sense Guide to Understanding the Tides. Hackensack, N.J.: World Scientific Publishing Company. ISBN 981-256-644-9. • “Tides,” Chapter 9 in Thurman, Harold V. and Alan P. Trujillo. 2002. Essentials of Oceanography, 7th edition. Upper Saddle River, N.J.: Prentice Hall. ISBN 0-13-065235- 0. • “Tides,” Chapter 12 in Segar, Douglas A. 2007. Introduction to Ocean Sciences, 2nd edition. New York: WW Norton & Company. ISBN 978-0-393-92629-3. • “Tides of the Ocean,” Chapter 11 in Davis, Richard A., Jr. and Duncan M. Fitzgerald. 2004. Beaches and Coasts. Malden, Mass.: Blackwell Publishing. ISBN 0-632- 04308-3. • “Tides,” Chapter II, Section G, pages 26–29 in Keener-Chavis, Paula and Leslie Reynolds Sautter. 2000. Of Sand and Sea: Teachings from the Southeastern Shoreline. Charleston, S.C.: South Carolina Sea Grant Consortium. Available from: www.scseagrant. org/pdf_files/of_sand_sea.pdf. VISIT • Tides and Water Levels tutorial on NOAA’s National Ocean Service website, oceanservice.noaa.gov/education/tutorial_tides/ welcome.htm. • Ocean in Motion: Tides — Characteristics on the Office of Naval Research website, www.onr.navy.mil/focus/ ocean/motion/tides1.htm. ABOVE LEFT and RIGHT: Low and high tide in the Bay of Fundy. FAR RIGHT: Low tide exposes oyster shells and mudflats in a North Carolina salt marsh. BELOW RIGHT: Illustrations of diurnal, semidiurnal and mixed tidal patterns. North Carolina exhibits semidiurnal tides. Courtesy NOAA National Ocean Service Spencer Rogers Shireen Nadir Shireen Nadir HEALTHY CHOICES M A R I N E R ’ S M E N U CONSIDER PREPARING THESE HEALTHY AND DELICIOUS MEALS THIS SUMMER USING TRIGGERFISH, CRAB AND MAHI-MAHI. Joyce Taylor’s recipes from Mariner’s Menu: 30 Years of Fresh Seafood Ideas include fun and inventive ways to serve these healthy fish for your friends and family. On page xx, read how researchers funded by the N.C. Fishery Resource Grant program, administered by North Carolina Sea Grant, found that these three options have low levels of mercury. Remember, availability of particular species will vary based on regulations, season and even changing weather. Thus, if the named fish or shellfish is not in your market, ask for another local one that would be similar in texture and flavor — make it your own “catch of the day”! For more information on what fishermen are catching now, go to: www.ncseagrant.org/seafood or check the Mariner’s Menu blog at: marinersmenu. org. The Mariner’s Menu seafood resource book is available in bookstores. To order a copy from North Carolina Sea Grant, call 919/515-9101. CRAB-STUFFED CHERRY TOMATOES • 1 cup backfin crabmeat • 1 pound cherry tomatoes • 1/4 cup mayonnaise • 2 tablespoons finely chopped green onion, including tops • 1 teaspoon fresh lemon juice • 1/4 teaspoon salt • 1/4 teaspoon freshly ground white pepper • 1/2 teaspoon Tabasco sauce • fresh parsley sprigs Remove any shell or cartilage from crabmeat. Wash, dry and hollow tomatoes. Invert and drain on paper towels. In medium bowl, mix mayonnaise, onion and lemon juice. Add salt, pepper and Tabasco and stir. Gently fold in crabmeat. Stuff tomatoes. Chill thoroughly. Garnish serving dish with parsley sprigs. Makes 25 to 30 appetizers. SAUTÉED MAHI-MAHI WITH LEMON-BUTTER SAUCE • 2 pounds mahi-mahi fillets, cut into serving-size pieces • 1/2 cup flour • 1 teaspoon salt • 1/4 teaspoon freshly ground white pepper • 1 cup milk • 3 tablespoons vegetable oil • 3 tablespoons margarine or butter Trim all dark meat from fish. Rinse fish thoroughly and gently pat dry with paper towels. Mix flour, salt and pepper in large shallow dish. Pour milk into another. Dip fillets in milk, drain, then dip in flour mixture. In large skillet, heat oil. Add 3 tablespoons butter and heat. Sauté fillets until golden on one side, about 6 to 8 minutes, longer if pieces are thicker. Turn and repeat on other side. Drain on paper towels. Serves 6 to 8. Lemon-Butter Sauce • 2 tablespoons margarine or butter • 1/4 tablespoon freshly ground white pepper • 2 tablespoons fresh lemon juice Melt margarine in small pan. Add pepper and lemon juice and heat. Pour over fillets. BREADED TRIGGERFISH • 2 pounds triggerfish, cut into 1-inch chunks • 2 eggs • 3 tablespoons water • 1 teaspoon salt • 1/2 teaspoon freshly ground white pepper • 1 cup flour • 1 1/2 cups fresh bread crumbs • 1/2 cup vegetable oil • 1/2 cup margarine or butter Beat eggs with water, salt and pepper. Dredge fish thoroughly in flour. Dip into egg mixture and let excess drain off. Coat with bread crumbs. Heat oil in large skillet. Add butter and heat to 375 F. Cook fish until golden brown on one side, about 5 to 6 minutes. Turn and repeat on other side. Drain on paper towels. Serves 6 to 8. — C.P. Healthy Seafood Choices PHOTO CREDIT????????? coastwatch | summer 2012 | www.ncseagrant.org 33 RIP CURRENTS Don’t fight the current No luche contra la corriente Swim even with the shore, until current weakens, then swim to shore Nada al nivel de la orilla hasta que la resaca se debilite If you can’t escape, float or tread water Si no logra escapar, mantengase a flote pedaleando If you need help, call or wave for assistance Si necesita auxilio, grite o agite los brazos Never swim alone Nunca nade solo More information about rip currents can be found at the following web sites: Para más información acerca de la resaca consulte estos sitios de web: www.ripcurrents.noaa.gov www.usla.org IF CAUGHT IN A RIP CURRENT SI LO ATRAPA LA RESACA RIP CURRENT (RESACA) RIP CURRENT (RESACA) RIP CURRENT RIP CURRENTS ESCAPE ESCAPE ESCAPE ESCAPE www.ripcurrents.noaa.gov ® ¡ESCÁPESE DE LA RESACA! (RESACA) www.usla.org Periodicals Postage Paid at Raleigh, NC North Carolina Sea Grant North Carolina State University Box 8605 Raleigh, NC 27695-8605 S U B S C R I B E Until August 30, buy a one-year subscription to Coastwatch, $15, and get another free. Write “2012 BOGO” on your checks. Educators get this special offer for $10. Use the code “2012 Education.” Send checks to Coastwatch, North Carolina Sea Grant, NC State University, Box 8605, Raleigh, NC 27695-8605. For more information, call 919/515-9101 or email: sandra_harris@ncsu.edu. C O N N E C T Keep up with North Carolina Sea Grant. Visit our website: www.ncseagrant.org for news and upcoming events. Become a “fan” at: www.facebook.com/ncseagrant. Read Coastwatch stories at: www.nccoastwatch.org. On Twitter, follow @ncsg_katiem. N O R T H C A R O L I N A S E A G R A N T : Your link to research and resources for a healthier coast. LEFT: Be safe while you are enjoying the surf. Go to: www.ncseagrant.org and search for “Break the Grip” to order rip current materials, or call 919/515-9101.
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Title | Coastwatch |
Contributor | UNC Sea Grant College Program. |
Date | 2012 |
Subjects |
Marine resources--North Carolina--Periodicals Coastal zone management--North Carolina--Periodicals Coastal ecology--North Carolina--Periodicals |
Place | North Carolina, United States |
Time Period | (1990-current) Contemporary |
Description | Summer 2012 |
Publisher | North Carolina Sea Grant College Program |
Agency-Current | North Carolina State University, University of North Carolina (System) |
Rights | State Document see http://digital.ncdcr.gov/u?/p249901coll22,63754 |
Collection | North Carolina State Documents Collection. State Library of North Carolina |
Type | Text |
Language | English |
Format |
Newsletters Periodicals |
Digital Characteristics-A | 15.1 MB; 36 p. |
Serial Title | Coastwatch |
Digital Collection | North Carolina Digital State Documents Collection |
Digital Format | application/pdf |
Title Replaces | University of North Carolina Sea Grant College newsletter |
Audience | All |
Pres File Name-M | pubs_serial_coastwatch2012summer.pdf |
Full Text | N A T U R E T O U R I S M • S T R A T E G I C H A B I T A T S • M E R C U R Y T E S T I N G • C O A S T A L S O N G B I R D S Coastwatch N O R T H C A R O L I N A S E A G R A N T • 2 0 1 2 • I S S U E 3 • S U M M E R • $ 3 . 7 5 EXPLORING THE NORTH CAROLINA COAST F R O M T H E E D I T O R Alamance Alexander Alleghany Anson Ashe Beaufort Bertie Bladen Burke Cabarrus Caldwell Caswell Catawba Chatham Clay Cleveland Columbus Craven Cumberland Davidson Dare Davie Duplin Durham Franklin Edgecombe Gaston Gates Graham Granville Greene Halifax Harnett Henderson Hoke Hyde Iredell Jackson Johnston Jones Lenoir Lincoln McDowell Macon Madison Martin Mitchell Moore Nash Northampton Onslow Orange Pamlico Pender Person Pitt Polk Robeson Rowan Rutherford Sampson Scotland Stanly Stokes Surry Swain Transylvania Tyrrell Union Vance Wake Warren Washington Watauga Wayne Wilkes Wilson Yadkin Yancey PKY 40 40 40 85 95 77 85 26 Asheville Asheboro Greensboro Durham Charlotte Raleigh Nags Head Washington Jacksonville Wilmington Fayetteville Morehead City New Bern Rocky Mount Winston-Salem Haywood Buncombe Avery Pasquotank Perquimans Currituck Camden Chowan Randolph Montgomery Mecklenburg Rockingham Lee Richmond Forsyth Guilford Carteret Hertford Brunswick Cherokee New Hanover Summer’s here. Perhaps you and your loved ones are headed to the beach for some down time. Keep your eyes peeled. You might run into some of our researchers conducting fieldwork while you’re catching some rays. Say hello if you spot any of them. While you’re enjoying the sand and the surf, be safe. Mirek Dabrowski, whose Duck-based company provides lifeguards for several northern Outer Banks communities, sees a lot of head and neck spine injuries in his line of work. These often happen when beachgoers are thrown head first by the waves, or dive and hit shallow bottom. Dislocations, particularly of shoulders, also are common. Dabrowski has some simple rules for safe beach play. First, do not underestimate the surf. It can be stronger than you expect. Second, do not overestimate your abilities. Our skills and strength diminish with time and lack of practice. Never turn your back on a wave. Go feet first into the water. Caution is key. Another important safety tool is proper and timely information. On May 15, our partners at the National Weather Service, or NWS, began testing a Beach Hazards Statement as a single source for coastal and beach hazard information. The NWS Weather Forecasting Office in Newport/Morehead City is one of six pilot sites in the country. When issued, the Beach Hazards Statement will be highlighted in turquoise on the NWS Watch, Warning, and Advisory map at: www.weather.gov. According to the NWS, Beach Hazards Statements “will inform the public about a wide range of hazards, including rip currents and rough seas, unusually cold water temperatures, potential for lightning along the shoreline, high heat indices and unusual wave conditions.” Statements also will include information about environmental and ecological hazards threatening the coast. Provide feedback on this new service through a link on: www.weather.gov. Turns out, this summer also is the season for awards for North Carolina Sea Grant and its partners. Scott Baker, our fisheries specialist, received the 2012 South Atlantic Sea Grant Regional Outreach Award for his work on community supported fisheries and other promising business models. His nomination cites his contributions to help fishermen enhance their incomes, while educating inland consumers about the importance of local seafood and the traditions of fishing communities. He is entered into the national-level competition and the winner will be announced this fall. The Walter B. Jones Memorial Awards for Coastal and Ocean Resource Management were named in June, and North Carolina snagged prizes. Plymouth was recognized for Excellence A Season for Relaxation and Recognition I N T H I S I S S U E Contributing Writers: Brian Efland Terri Kirby Hathaway E-Ching Lee Katie Mosher Chelsea Pierce Spencer Rogers Sharon Settlage Megan Sharp Pam Smith Contributing Photographers: Sarah K. Amspacher Nate Bacheler Pete Bell Jeff Buckel Brian Efland David Eggleston Amy Freitag Walker Golder Jess Hawkins Jimmy Johnson Adam Jones Jo O’Keefe Chris Layton Jeff Lewis Vanda Lewis Cameron Lowe Craig McDuffie Ray Midgett Jodie Mitchum Shireen Nadir Gene Pinder Spencer Rogers Sharon Settlage Pam Smith Scott Taylor Marc Turano Sabrina Varnam Pete Watkins North Carolina’s diverse coast offers countless interesting subjects. The map indicates story settings in this issue — including Brunswick, Carteret and New Hanover counties, and Pamlico Sound. in Local Government. Sea Grant nominated the community for its efforts to identify economic growth opportunities while maintaining the environmental quality that has earned the Lower Roanoke River Basin a designation as the state’s environmental “crown jewel.” Read about Plymouth’s efforts to address sea-level rise in the Spring 2012 issue of Coastwatch. Also, six North Carolina scholars received Excellence in Coastal and Marine Graduate Study awards. This category recognizes graduate students whose research promises to contribute to new or improved approaches to coastal or ocean management. Coastwatch readers will see some familiar names among the recipients: Michelle Brodeur, featured in the Summer 2011 issue; Jennifer Cudney-Burch, quoted in the Summer 2010 issue; Tim Ellis, highlighted in the Spring 2009 issue; and Michelle Covi, who wrote the Spring 2012 article on Plymouth. In addition, Rachel Gittman from the University of North Carolina at Chapel Hill and Matthew McCarthy from UNC Wilmington were honored. We will highlight these winners in our next issue, but you can read more at: www. ncseagrant.org. Have a sunny and safe summer. — E-Ching Lee, Coastwatch Managing Editor Summer 2012 F E A T U R E S COA S TA L T I D I N G S ............................................................................2 Take it Outside: Wet and Wild Coastal North Carolina Vacation season is upon us. Ready to do something a little different, such as soaring, diving or howling? Pam Smith shares loads of ideas for nature-based tourism. ........................................................................................6 The Pamlico Sound: Fishing Gem of North Carolina Take out too many threads and the blanket may come unwoven. The idea behind identifying strategic habitat areas is to keep the whole of the state’s fisheries intact. Join Sharon Settlage as she explores the method behind the plan to protect North Carolina’s fisheries. ..............................12 Hunting for Quicksilver: Testing Local Seafood for Mercury E-Ching Lee gives us another reason for eating local. She talks with scientists who tested the state’s seafood for contaminants. Find out why national recommendations may not hold for North Carolina fish. .............18 N A T U R A L I S T ’ S N O T E B O O K : A Song Across the Water Go beyond the beach with Megan Sharp. She shows us coastal songbirds that are worth going a little out of the way to see — and hear. ................ 24 C U R R E N T S : Cruising to Fuel Savings It’s costing more to fill up the boat this year. Take a ride with Brian Efland and learn how to boost fuel efficiency. ...................................... .27 P E O P L E A N D P L A C E S : Currituck County Goes Green Come along with Sharon Settlage to Powells Point for the Currituck Sound Water Quality Fair. Learn how Currituck County is taking the lead in environmental stewardship. ....................................................... 28 S E A S C I E N C E : Rolling with the Tide Watch the tide with Terri Kirby Hathaway to learn how it forms and the forces that shape it. .............................................................................. 30 MA R I N E R ’ S ME N U : Healthy Seafood Choices Have an excess of cherry tomatoes? Check out a recipe for a crab-stuffed tomato appetizer. Consider breaded triggerfish or sautéed mahi-mahi as the main dish. .................................................................................. 33 coastwatch | summer 2012 | www.ncseagrant.org 1 Coastwatch NATIONALOCEANICANDATMOSPHERICADMINISTRATION U S DEPARTMENTOFCOMMERCE 2 coastwatch | summer 2012 | www.ncseagrant.org Coastwatch North Carolina Sea Grant • 2012 • Issue 3 • Summer Editor Katie Mosher Managing Editor E-Ching Lee Contributing Editor Sharon Settlage Designer Linda Noble Circulation Manager Sandra Harris The North Carolina Sea Grant College Program is a federal/state program that promotes stewardship of coastal and marine resources through research and outreach. It joined the National Sea Grant College Network in 1970 as an institutional program. Six years later, it was designated a Sea Grant College. Today, North Carolina Sea Grant supports research projects, an extension program and a communications staff. Michael Voiland is executive director. The program is funded by the U.S. Department of Commerce’s National Oceanic and Atmospheric Administration, and the state through the University of North Carolina. Coastwatch (ISSN: 1068-784X; USPS Periodical # 010464) is published five times a year (January/February, March/April/May, June/July, August/September/October, November/ December) by the North Carolina Sea Grant College Program, North Carolina State University, Box 8605, Raleigh, North Carolina 27695-8605. Telephone: 919/515-2454. Fax: 919/515-7095. Subscriptions are $15. Email: eching_lee@ncsu.edu World Wide Web address: http://www.ncseagrant.org Periodical Postage paid at Raleigh, N.C. POSTMASTER: Send address changes to Coastwatch, North Carolina Sea Grant, North Carolina State University, Box 8605, Raleigh, NC 27695-8605. Cover photo of Carolina Beach courtesy of VisitNC.com. Table of contents graphic based on photo of pink shrimp by Vanda Lewis. Printed on recycled paper. CInO theA NexSt IsTsueW of CAoaTstwCatchH In the Autumn issue, we focus on what counties and federal agencies have learned from Irene to improve forecasting and communication during storms. Also, find out about a study that monitors fishermen on their boats using video cameras and sensors. In addition, explore North Carolina’s Inner Banks where People-First Tourism is establishing a network of tourism businesses based on the ecology, history and culture of local communities through Sea Grant-funded research. C O A S T A L T I D I N G S Voiland, Lee Earn Awards for Excellence Michael Voiland, executive director of North Carolina Sea Grant, and E-Ching Lee, science writer/editor, took honors in their respective categories at the 2012 awards program for the North Carolina State University Office of Research, Innovation and Economic Development. Voiland also serves as director of the Water Resources Research Institute of the University of North Carolina. The staffs of both programs nominated him for management excellence leading to major awards from state and national agencies for contributions to coastal research and applied practices. Voiland, who will retire at the end of the year, previously served as chair of the state’s first Waterfront Access Study Committee, which included members from all sides of the sometimes-contentious issues dealing with waterfront access. He led the committee to make recommendations to the N.C. legislature that resulted in a $20 million fund to support public access along the North Carolina coast. As managing editor of Sea Grant’s award-winning magazine, Coastwatch, Lee was recognized for her exceptional service in, among other areas, selecting news topics that keep the state’s citizens informed, such as ways coastal communities can plan their futures effectively. She also was cited for her work with undergraduate and graduate interns. The NC State Awards for Excellence program recognizes permanent employees for “outstanding accomplishments that do not fall entirely within normal duties, but are a major contribution reflecting credit on the person and the state.” Five university winners moved to the Governor’s Award for Excellence selection process set for later this year. — K.M. North Carolina Sea Grant was well represented at the 2012 Awards for Excellence. Gene Pinder coastwatch | summer 2012 | www.ncseagrant.org 3 Tiger Shrimp Sightings Increase Recent sightings of Asian tiger shrimp off the Atlantic and Gulf coasts have sparked concern among researchers and shrimpers. Scientists from the National Oceanic and Atmospheric Administration and U.S. Geological Survey are working with North Carolina and Texas agencies to find the cause for their presence in U.S. waters. Pam Fuller, USGS biologist, notes that the sightings of tiger shrimp have increased nearly 20 fold from 32 in 2011 to 593 this year in the Pamlico Sound. Some scientists believe the non-native shrimp arrived by boat, while others suggest currents are responsible. NOAA scientists will look at the pos-sibility that the Asian shrimp are breeding and the effects the shrimp will have on na-tive shrimp. North Carolina’s native shrimp are brown shrimp; pink shrimp, also known as spotted shrimp; and white shrimp, also known as green-tailed shrimp. “Asian tiger shrimp are larger in size than Carolina shrimp and have distinctive markings as adults, but they are difficult to distinguish at younger stages,” explains Marc Turano, North Carolina Sea Grant extension specialist. Anyone who spots a tiger shrimp should alert NOAA by reporting the sighting to: nas.er.usgs.gov/SightingReport.aspx. — C.P. C O A S T A L T I D I N G S Sturgeon Listed as Endangered The Atlantic sturgeon was named a federally endangered species in April. The National Marine Fisheries Service published a final rule in the Federal Register that lists the Carolina and South Atlantic population segments, both of which are prevalent in North Carolina waters, as endangered. It has been illegal to harvest Atlantic sturgeon in the state’s coastal waters since 1991. The Endangered Species Act prohibits the take — including harassing, harming, pursuing, wounding, killing, trapping, capturing or collecting — of listed species. A federal status review of Atlantic sturgeon concluded that the fish are caught as bycatch in commercial fisheries along the entire U.S. Atlantic Coast. Sturgeon are primarily caught in waters less than 50 meters deep by commercial and recreational fisheries using trawls and gillnets. The N.C. Division of Marine Fisheries, along with most other East Coast states, opposes this Fisheries Science in the Spotlight The annual meeting of the Tidewater Chapter of the American Fisheries Society provided an opportunity for students to strut their stuff in front of an audience interested in fisheries research. “The function provides a formal but relatively low-pressure venue for students to gain experience in giving presentations in public. It provides a chance for informal, constructive advice to our students that improves their presentations and their science,” explains Sara Mirabilio, North Carolina Sea Grant fisheries specialist. The meeting was held in March at the N.C. Maritime Museum in Beaufort. Students presented posters and projects funded by state and federal programs that Sea Grant administers. Several East Carolina University students presented Sea Grant-supported research that studied the depletion of river herring stocks. On a positive note, an ECU group reported a 10-fold increase in river herring larvae relative to a 1981 study. ECU researchers also encouraged the use of calibrated gillnets to count fish, such as spiny dogfish, that swim high in the water column. A North Carolina State University study used a novel tagging technique to track small fish migrations — a potential method to monitor water quality. NC State research also improved methods for estimating blue crab populations after storm events. A University of North Carolina Wilmington study found that maturity assessments of southern flounder might need to be reconsidered. — S.B.S. ABOVE, LEFT TO RIGHT: The oyster toadfish is the mascot for the AFS Tidewater Chapter. • Atlantic sturgeon is considered one of the oldest fish species in the world. • Tiger shrimp can grow to 13 inches. listing based on its review of available scientific data that show Atlantic sturgeon stocks are improving coast-wide. With this listing, fishermen will be subject to federal fines and penalties if they interact with the fish. Chris Batsavage, DMF protected resources section chief, notes that the agency is requesting an incidental take permit under Section 10 of the Endangered Species Act for the state’s estuarine gillnet fisheries. These permits allow for the taking of endangered species that occur incidentally to an otherwise lawful activity under specific limitations. “In addition, the Marine Fisheries Commission asked the DMF to develop a suite of potential management options for the protection of Atlantic sturgeon,” Batsavage explains. “These potential management options will be reviewed by the regional advisory committees this summer before they are presented to the commission in August.” — E.L. Duane Raver Duane Raver NOAA C O A S T A L T I D I N G S Recreational Fisheries Forum Showcases Data Gathering North Carolina Sea Grant renewed a tradition with the 2012 Marine Recreational Fisheries Forum, held in Raleigh in April. The event drew anglers, researchers and fisheries managers to discuss a range of topics from stocks’ status, to efforts to gather data on recreational catches. Sea Grant hosted an annual forum series from 1992 to 1997. The 2012 meeting was designed to engage the recreational fishing community on current issues through a facilitated discussion outside of the regulatory arena. “We were pleased with the program and discussion. We anticipate an even greater turnout for a 2013 forum that will be held early next year,” says Scott Baker, a Wilmington-based fisheries specialist, who organized the event, along with Sea Grant colleague Sara Mirabilio in Manteo. Mirabilio adds “87 percent of the attendees found that the meeting provided them new viewpoints or insights.” Presenters included university researchers and representatives of the N.C. Division of Marine Fisheries, the Mid- Atlantic Fishery Management Council, the National Oceanic and Atmospheric Administration, and the Coastal Conservation Association North Carolina. Also, N.C. Representative Tom Murry of Raleigh noted that some related topics could come up in the N.C. General Assembly’s summer short session, including recommendations from a marine fisheries’ management study committee. Watch future issues of Coastwatch and Sea Grant’s online calendar for more information on the 2013 forum. Presentations from the 2012 meeting are available at: www.ncseagrant.org/recfishforum. — K.M. 4 coastwatch | summer 2012 | www.ncseagrant.org Permeable Pavement Workshop The Friday Center in Chapel Hill, Fayetteville Technical Community College and a shopping center in Rocky Mount, plus many other sites in North Carolina, have turned to permeable pavement to reduce stormwater runoff. North Carolina State University; N.C. Division of the Environment and Natural Resources, or DENR; and North Carolina Sea Grant are sponsoring permeable pavement workshops throughout this summer. Although several are sold out, others slated for Chapel Hill, Wilson and Asheville still have spots. Early bird discounts are available. The impetus for the workshops comes from updated DENR regulations. Bill Hunt, on faculty with the department of biological and agricultural engineering at NC State, conducted pioneering research on permeable pavement that indicates its usefulness from the mountains to the coast. Previous DENR regulations gave stormwater credit only for permeable surfaces at the coast. Engineers, landscape architects and others interested in the practice should attend. However, the sessions are useful for a broad audience. Professional development hours are available for professional engineers and surveyors. For more information, go to: www.ncseagrant.org and click on Issues and Events. Then search for links to the permeable pavement workshops, including speakers and registration. To see a national map of businesses and residences that use permeable pavement, go to: nemonet.uconn.edu and select the National LID Atlas. — S.B.S. Storm season started before June 1 this year, with tropical storms Alberto and Beryl forming in late May. However, multiple outlooks anticipate the 2012 hurricane season to be milder than last year, when Hurricane Irene caused devastation. North Carolina State University’s Atlantic Tropical Cyclone Outlook indicates that 2012 hurricanes will be “on par with the long-term average over the past 62 years.” The report also notes that storm activity will be below that of the last 20 years. The National Oceanic and Atmospheric Administration also expects a tame season. “NOAA’s outlook predicts a less active season compared to recent years,” notes administrator Jane Lubchenco. NOAA recently declared Hurricane Irene as retired from the list of Atlantic Basin Storm Names, due to the damage caused in 2011. NOAA stresses staying safe and alert during the hurricane season. “There is a reason why we warn for these events and people should take them seriously,” explained newly retired National Hurricane Center Coordinator Bill Read at the 2012 N.C. Hurricane Workshop. North Carolina Sea Grant co-sponsored the meeting held at East Carolina University. During hurricane season, coastal residents should have supplies ready for extreme weather conditions. “We don’t know when that hurricane is going to impact us. It could be in a low-frequency year, so we have to be ready no matter what,” says John Cole, warning coordination meteorologist for the National Weather Service office in Newport/Morehead City. State and federal agencies suggest creating an emergency kit with water, nonperishable foods, a first aid kit, a radio, a flashlight and batteries. Also include necessary medications and important legal documents. For the latest in hurricane research, visit: researchmatters.noaa.gov/news/Pages/hurricanes.aspx. For more information on extreme weather preparedness visit: www.readync.org and: www. ready.gov/hurricanes. — C.P. Average Hurricane Season Predicted A permeable pavement sidewalk at N.C. Wildlife Resource Commission’s Centennial Campus Center for Wildlife Education. Chris Layton Sharon Settlage coastwatch | summer 2012 | www.ncseagrant.org 5 C O A S T A L T I D I N G S Students, Teachers Create Questions for ‘Molly by the Sea’ Molly has some new friends. Students and teachers from Manteo Elementary School collaborated to write discussion questions for “Molly by the Sea.” The piece was published in the Spring 2012 issue of Coastwatch. “Marine education is a truly multidisciplinary subject — using the ocean and the marine environment to teach all subjects, not just science, is what it’s all about,” says Terri Kirby Hathaway, North Carolina Sea Grant’s marine education specialist. “‘Molly by the Sea’ is an easy tool for teachers to use in their classroom.” Jodie Mitchum’s 5th grade Academically or Intellectually Gifted students, along with Title I teacher Pat Baker, produced comprehension questions that meet Common Core State Standards for grades 3 and 4. This curriculum is accepted in North Carolina’s public school system and in many public school systems nationwide. “My students were so excited and motivated to do an excellent job with writing the questions,” Mitchum says. “The kids did a great job of trying to make them common core aligned and somewhat rigorous. What a great task for them at this stage in their reading development!” Baker also praised the short story. “Through Molly’s eyes, my students are more knowledgeable of our unique habitat. This is a special goal of mine and I feel it is important for the livelihood of our community,” she notes. For more, visit: www.ncseagrant.org/ s/molly. — M.S. NC Documentary Covers the Waterfront Seafood seasonality and coastal communities were in the spotlight in the UNC-TV documentary “North Carolina’s Local Catch.” If you missed the initial airing, check UNC-TV channel listings for rebroadcasts. “We consider this a strong program,” explains Shannon Vickery, UNC-TV director of production. “We plan to use it well into the future.” Funded by the N.C. Fishery Resource Grant Program, the documentary also is available at: www.unctv.org/nclocalcatch. DVD copies for personal and educational viewing can be requested from North Carolina Sea Grant or UNC-TV. “The online program has already been shown in classrooms, and we have had requests from local governments and coastal businesses, as well as ‘catch’ groups at the local and state levels,” notes Barry Nash, Sea Grant seafood specialist who was on UNC-TV’s “North Carolina Now” public affairs program before the documentary debuted. Nash anticipates that seafood markets will run the piece and provide online links to help customers understand more about their products. Also, restaurants and realty companies may show it during the busy summer seasons, as will parks and visitors’ centers. The program provided information on harvest seasons for fish, tips on identifying high-quality seafood and even producer Rick Sullivan’s feast with family and friends. “Yes, you can try this at home,” Sullivan adds. Many of those interviewed during the program have heard rave reviews from friends, customers and viewers. Even coastal natives found themselves learning something. “There were things that surprised them, like the statistics on the best-selling seafood,” notes Gaye Varnam Fulford, who participates in Brunswick Catch. To request a DVD copy for classroom or informal educational uses, call Sea Grant at 919/515-9101; send an email to: sandra_harris@ ncsu.edu; or check with an office in Raleigh, Manteo, Morehead City or Wilmington. For additional information on uses for the video, contact: svickery@unctv.org. The documentary is not available for broadcast on other TV channels. — K.M. Raleigh Charter Earns National Honors Raleigh Charter High School took second place at the annual National Ocean Sciences Bowl, held in Baltimore in April. The team advanced to the national competition by winning the North Carolina contest, known as the Blue Heron Bowl. Ben Whitfield, Jonathan Tseng, Dan Qu, Ben Hames and Jonathan Cookmeyer were on the team. They competed against 25 other high schools from across the nation. The contest consisted of multiple-choice questions on ocean knowledge, answered individually, as well as more challenging team questions. Each team also presented on offshore renewable energy. “The team’s willingness to take chances to win was the most impressive,” coach Whit Hames recalls. The Raleigh teens’ efforts were rewarded with a trip to Mississippi, where the students will be tagging sharks, kayaking in the sea, and studying fish and dolphins. “This kind of field experience changes people. It shows them the world,” the biology teacher adds. North Carolina State University will host the 2013 Blue Heron Bowl. For details on the 2012 North Carolina competition, go to: www.ecu.edu/icsp/bhb2012/. For more information on the National Ocean Sciences Bowl, visit: www.nosb.org. — C.P. ABOVE: Blackened red drum was featured in the program. Pete Bell/UNC-TV Jodie Mitchum ABOVE: Fifth grade AIG students from Manteo Elementary School. 6 coastwatch | summer 2012 | www.ncseagrant.org Jo O’Keefe Craig McDuffie Pete Watkins coastwatch | summer 2012 | www.ncseagrant.org 7 C o n t i n u e d Question: What might visitors opt to do while on vacation in coastal North Carolina? A. Soar like a bird. B. Dive like a fish. C. Howl like a wolf. D. All of the above. Answer: All of the above. Indeed, variety is the essence of the coastal experience for visitors who want to observe nature, and be part of it; to learn about it, and from it. Lucky for them, a growing number of nature-based tourism opportunities complement traditional leisure activities that have drawn tourists for decades to North Carolina’s renowned sun-drenched beaches, fishing meccas and bird-watching vistas. “North Carolina’s coastal woods and waters are full of opportunities for ecotourists,” says Jack Thigpen, North Carolina Sea Grant extension director. “The diversity of wildlife and plants, together with small waterfront communities, make for a wonderful experience. Increasing tourism also is creating business opportunities for local entrepreneurs.” Here and globally, communities and businesses are embracing ecotourism principles that promote responsible activities in and with nature, build environmental and cultural awareness and respect for natural resources, and provide financial benefits for local people and conservation efforts. It’s a good bet that coastal ecotourism makes a significant contribution to the state. The N.C. Division of Tourism, Film Development and Sports’ overall 2010 economic report says: “Visitors traveling to and within the state of North Carolina spent a record $17 billion in 2010, supporting more than 40,000 North Carolina businesses and directly supporting 183,900 jobs all across the state. State and local tax revenues generated as a result of visitor spending totals more than $1.5 billion annually. North Carolina ranks as the 6th most visited state in the United States.” • Take it Outdoors It’s encouraging to note that a recent study by The Outdoor Foundation shows that more Americans participated in outdoor recreation activities in 2011 than in the past five years. Birding, running, biking, fishing and paddling were among the activities reported. Many coastal communities are responding to the trend toward active lifestyles by develop-ing recreation facilities that include hiking trails and dockside entry for kayaks and canoes. The Take it WET AND WILD COASTAL NORTH CAROLINA B y P a m S m i t h Top, left to right: A stone crab scurries along the wet sand. • Coastal waters are full of opportunities for ecotourists. • Scuba-Now divers explore colorful ledges. • Ibis enjoy a buffet in shallow waters. Bottom: A Forbes’ sea star is a magical find for any beachcomber. Jess Hawkins Jo O’Keefe 8 coastwatch | summer 2012 | www.ncseagrant.org Brunswick County Nature Park, for example, has 900 acres with miles of hiking trails through pristine woodlands. Floating docks enable up to four canoes or kayaks at a time to easily slip into the placid black waters of Town Creek. “Nothing beats the stealthiness of kayaking and canoeing for wildlife and birding in out-of-the-way, backwater habitats,” Thigpen points out. On the other hand, he says, birding is a portable pastime that is enhanced by a love for the outdoors, a pair of binoculars, and a bird identification book, such as a copy of The North Carolina Birding Trail Coastal Plain Trail Guide. The North Carolina Birding Trail connects birders with more than 100 birding sites east of Interstate 95 and the communities in which they are found. The driving trail’s website, www.ncbirdingtrail.org, also links visitors to local businesses to help support and stimulate local economies. “Many new kinds of ecotourism businesses are springing up along the coast. In some cases, watermen are testing the waters for new opportunities by offering inshore naturalist trips or offshore pelagic bird-watching explorations,” Thigpen adds. • Soar Like a Bird For adventure-seeking visitors with an urge to fly like a bird, there is Kitty Hawk Kites, a popular Outer Banks adventure recreation hotspot. After proper flight-school instructions, a tourist can trek with a guide to the top of Jockey’s Ridge State Park, strap on hang-gliding gear, and soar with gulls and hawks high above the 420-acre sand dune system, the tallest of its kind in the eastern United States. When Jack Harris and his business partner, Ralph Buxton, launched Kitty Hawk Kites in 1974, the Outer Banks was a mere blip on the national tourism radar screen. Recreational fishing, seasonal hunting and beachcombing at the Cape Hatteras National Seashore were the main attractions for visitors. “Frankly, a lot of people thought we were a bit crazy and that the business wouldn’t last long,” Harris recalls. “Not a lot was going on out here. In fact, the area was pretty impoverished.” Nevertheless, Harris was inspired by a photo he had seen in the Winston-Salem Journal of someone hang gliding off Grandfather Mountain. Soon after, his mail-order hang glider arrived. “We assembled it and took it to Jockey’s Ridge and ran up and down the ridge until we figured out the art of taking off,” he says. “Nothing beats the stealthiness of kayaking and canoeing for wildlife and birding in out-of-the-way, backwater habitats. — Jack Thigpen It took a bit longer for the business to take off. State improvement projects were instrumental in the Outer Banks becoming a year-round tourist destination, Harris says. While most visitors are from out of state, roadways, bridges and ferries now bring significantly more North Carolinians from the Triangle, Triad and Charlotte areas. As Outer Banks tourism has grown, so has Kitty Hawk Kites. Today, the franchise boasts expanded flight training and hang gliding services at Jockey’s Ridge and the Wright Brothers National Memorial. Kayak ecotours, parasailing, surfing and paddleboard lessons are offered at several locations. Harris partners with other local entrepreneurs to help market ecotourism ventures that range from dolphin-watching boat tours to guided Segway tours at a wild mustang preserve in Corolla. Harris says hang gliding remains his true passion. “You can work the kite to catch a thermal lift — an exhilarating experience. You feel connected to nature and that moment in history when the Wright Brothers took flight a short distance from here. The wind and water work together to form Jockey’s Ridge, the perfect platform for flight.” The take-home message for Kitty Hawk Kites patrons is simple, Harris says. “Our natural resources are incredible and wonderful. We need to enjoy them, respect them and protect them from negative impacts.” Top: Jess and Diane Hawkins enjoy talking about ecotourism adventures aboard Lucky Dog. Middle: A hang glider takes off atop Jockey’s Ridge to soar with the birds. Bottom: Black skimmers and gulls congregate before they hunt for fish. Pam Smith Courtesy Kitty Hawk Kites Jo O’Keefe coastwatch | summer 2012 | www.ncseagrant.org 9 C o n t i n u e d • Teachable Moments Further south, in the waters surrounding Cape Lookout National Seashore, you’re likely to find Capt. Jess Hawkins aboard his boat, Lucky Dog. He’ll be doing what he loves best — helping visitors discover the natural treasures of the Crystal Coast. Hawkins, a marine biologist by vocation and avocation, launched Crystal Coast Ecotours out of Morehead City three years ago after a 30-year career with the N.C. Division of Marine Fisheries. During peak summer months, most of his passengers are out-of-state vacationers. Many return each season to the same rental properties and further adventures aboard Lucky Dog. Each excursion is unique, he says, because of daily and seasonal changes that occur in a variety of aquatic habitats — sea grass meadows, backwater sounds and marshes. One thing that does not change is the excitement of his passengers when they spot dolphins surfacing nearby. During summer months, dolphins lead their young into the backwater fisheries nursery area where food is abundant and predators are scarce. “The nets yield a multitude of surprises even for an old marine biologist like me. Seeing the joy of discovery — that aha moment — on our passengers’ faces makes this a very fulfilling adventure.” — Jess Hawkins Another sure hit for Hawkins’ passengers is seeing the wild horses that roam on Shackleford Banks, a secluded barrier island that is part of the Cape Lookout National Seashore. The horses are said to be descendents of horses brought to the New World by Spanish explorers. Hawkins also provides hands-on teachable moments through clamming, crabbing, and pulling seine nets through the shallow brackish waters. “The nets yield a multitude of surprises even for an old marine biologist like me. Seeing the joy of discovery — that aha moment — on our passengers’ faces makes this a very fulfilling adventure,” Hawkins asserts. • Howl like a Wolf Hawkins also evokes “aha moments” at the nearby Pine Knoll Shores Aquarium, where he shares his knowledge of marine biology as an instructor for various programs. Terri Kirby Hathaway, Sea Grant marine education specialist, believes informal educational programs, such as those offered at the state’s three aquariums, are wonderful ways to “extend” the aquarium experience. “Visitors observe a simulated environment at the aquariums, then gain a deeper understanding and appreciation for the environment through a hands-on nature experience,” Hathaway points out. Like the aquariums, most North Carolina state parks, coastal reserves and national wildlife refuges offer self-guided tours, as well as structured programs. “Self-guided walks are meaningful and visitors take away an appreciation for the beauty and diversity in nature. With structured programs, visitors are guided by someone who knows what is there, what to look for, and even what to listen for,” Hathaway explains. “With birds, you usually hear them before you see them. I’ll tell you this — the great blue heron makes a gosh-awful noise. It’s one that makes a lasting impression and stays with you as a great take-home experience,” she says with conviction. At Alligator River National Wildlife Refuge, staff members offer a unique experience — the chance to gather around a campfire at nightfall, learn about the comeback of the Top: Sea Grant’s Brian Efland enjoys kayak fishing with a close-up view of the ponies on Shackleford Banks. Middle left: Segway tours are popular ways to enjoy coastal visits. Middle right: A ghost crab seems to pose for the camera. Bottom: Sea beach amaranth is a rare find at Sunset Beach. Courtesy Kitty Hawk Kites Jo O’Keefe Jo O’Keefe Nate Bacheler 10 coastwatch | summer 2012 | www.ncseagrant.org endangered red wolf and participate in a “howling.” Hathaway even appreciates the informal educational value of a solitary walk on the beach. As a founding member of Beachcomb Alliance International, she knows that these walks are more than collecting shells, sea glass or sea beans. Rather, each discovery is a clue to the history, geology and biology of the region. • Beach-comb for Science Beach-combing often is the gateway to a lifelong commitment to being a citizen scientist. Such is the case for Jo O’Keefe, a Brunswick County resident with a love for all things coastal. She moved to the county in 2002 with a camera and a determination to learn as much as she could about her new surroundings. Early on, she was captivated by the biodiversity of Bird Island, in the N.C. Coastal Reserve system. The living laboratory became her classroom, photo studio and connection to many university marine science researchers. These days, she turns her keen eye to Sunset Beach, timing her walks along the shoreline during an ebbing tide. O’Keefe looks for aberrations in the wet sand near the water’s edge — a triangle impression in the sand turns out to be a colorful whelk; a mounded impression, a moon snail. She places each live find in a bucket of seawater. “The beach is different every day. I never get tired of it,” she says, scooping up a whelk egg case and shaking it to hear the sound of miniscule shells inside. She often becomes a “Pied Piper” of sorts, engaging vacationing families in the pursuit of beach treasure. At the end of a typical walk, she “reviews” the contents of her bucket and may ask someone in the group to return the live animals to the sea. Then, she’ll hand empty containers to the children in the group, telling them, “I taught you how to be a naturalist, now you can do it on your own.” O’Keefe takes some discoveries home in small containers for further study and classification. Others are captured with her camera for posting on a website filled with her nature photography. Along with the images, O’Keefe provides interesting environmental information. She believes that the more people learn about and are engaged in coastal ecology, the more likely they will become partners in protecting it. • Dive Like a Fish The dive team at Scuba-Now in Wilmington has a similar philosophy. The mission of the training and dive center is to make scuba diving safe and affordable, and to turn the world’s dive population into ocean protectors. “We have seen an increase in scuba diving. New technology and the lower cost of gear help promote the sport,” says Pete Watkins, a dive master and underwater photographer. The center certifies about 800 divers annually through rigorous training programs that include class time and pool time before students graduate to an actual dive. About a quarter of the Scuba-Now students are from outside the Wilmington area, according to Inman Campbell, shop manager and boat captain. Scuba-Now operates four vessels, including a newly acquired 40-foot boat that can hold up to 20 divers, Campbell says. “There’s definitely a learning curve to master,” says J.D. Williams, operations manager and dive master. “You are dealing with strong currents and visibility issues. We preach safety and knowing your limits. We also preach conservation — look but don’t touch, especially when it comes to coral. Once you master the art of buoyancy, you can fly underwater and keeping away becomes easier.” Top: Jo O’Keefe talks about the ‘catch of the day’ with Sunset Beach visitors Chloe Lock, Jackie Atkins and Haley Idol from Kernersville. Middle: Capt. Doug Springer explains the ecology and history of the Cape Fear River to Maureen and Fred Halek of Gastonia. Bottom: Looking toward Wilmington, Springer’s passengers observe the shoreline change where fresh water meets brackish river water. Pam Smith Pam Smith Pam Smith coastwatch | summer 2012 | www.ncseagrant.org 11 The most popular dive sites for that company are several offshore artificial reefs. Skilled divers prefer a ledge 100 feet deep off Carolina Beach where fossilized teeth of meg-alodon — the giant shark that lived millions of years ago — are found in abundance. Underwater photographers find countless colorful subjects on dives near Frying Pan Shoals Light Tower, where many tropical and subtropical fish species cluster, Watkins says. “I have taken photos of neon goby, French angel fish, and too many lionfish to count. The underwater world is amazing. You feel like a pioneer discovering a new world. At the same time, the shipwrecks give you a glimpse into history,” Watkins adds. “I have taken photos of neon goby, French angel fish, and too many lionfish to count. The underwater world is amazing. You feel like a pioneer discovering a new world. At the same time, the shipwrecks give you a glimpse into history.” — Pete Watkins • History Meets Ecology Climb aboard the Wilmington with Capt. Doug Springer at the helm. The state-of-the-art, custom-built catamaran is the flagship of Wilmington Water Tours, an ecotour venture that Springer operates with his wife Diane and business partners Garland Valentine and Mary DeLollo. Springer’s favorite cruise offering is a black water adventure into the upper reaches of the northeast Cape Fear River. The tour merges history and ecology with tales of Colonial settlements, thriving rice plantations, geology and important wildlife habitat. “Before there was an Interstate 40,” Springer reminds the mostly out-of-state passengers, “there was the Cape Fear River. It still is a strong economic engine for the region.” Three miles up the river, a colony of osprey has returned for the new nesting season. In 2011, there were more than 20 nests, with up to three chicks per nest. “They have plenty to eat since menhaden fish populations began to rebound,” he explains. Springer slows the Wilmington to point out a sudden change in the shoreline. “That’s the Cape Fear Mountain — a geological uplift that occurred tens of thousands of years ago. It forms the basis for the Castle Hayne aquifer that runs from Wilmington to New Jersey.” Springer, a former Cape Fear riverkeeper, has a clear message for all passengers: “This is your river. Learn to use it. Learn to take care of it. It’ll be your river forever.” A recent middle-school field trip ended with a lively round of questions and answers. The session concluded when a student asked if he could say something. Springer nodded consent. And, on cue, all the students stood up and said in unison: “It’s our river.” North Carolina Tourism Tidbits The following is a sampling of ecotourism opportunities available along North Carolina’s coast: • N.C. Division of Tourism, Film and Sports Development website has information about North Carolina’s coast and beaches: www.visitnc.com. • N.C. Division of Parks and Recreation page has details about park locations and programs: www.ncparks.gov. • U.S. Fish and Wildlife Service’s website has information about visiting wildlife refuges: www.fws.gov. • National Parks Service lists coastal sites in North Carolina: www.nps.gov. • N.C. Aquariums organizes summer camps for kids: www.ncaquariums.com. • N.C. Birding Trail Official Guide website has trail guides and resources: www. ncbirdingtrail.org. • N.C. Paddle Trail Association has maps: www.ncpaddletrails.info. • Coastal nature photography and information: www.okeefes.org. • Scuba-Now information: www.scuba-now. com. • Ecotours with Capt. Jess Hawkins: www.crystalcoastecotours.com. • Ecotours with Capt. Doug Springer: www.wilmingtonwatertours.com. • Kitty Hawk Kites history and services: www.kittyhawk.com. • Beachcomb Alliance International: www.beachcomballiance.org. • 2012 Beachcombers Conference: www.beachcombingconference.com. Top left: Crystal Coast Ecotours provided this moment of discovery for Logan Rooks of Virginia. Top right: An angel fish is ‘caught’ by a Scuba-Now photographer. Bottom: Underwater photography is a growing interest for scuba divers. Jess Hawkins Pete Watkins Pete Watkins pamlico sound 12 coastwatch | summer 2012 | www.ncseagrant.org C o n t i n u e d Habitat — it’s a word you’ll see often in the North Carolina Coastal Habitat Protection Plan. What does the blue crab have to do with the six major habitats defined by the plan? All are needed during its complex life cycle. Take away a habitat and the state’s number one fishery might be jeopardized. In fact, many fish use multiple habitats over the course of a lifetime. Different habitats provide refuge, spawning, foraging and nursery areas for many sea animals during their life cycles. Right: Trawlers in Swan Quarter Harbor. THE PAMLICO SOUND: Fishing Gem of North Carolina B Y S H A R O N B . S E T T L A G E Jimmy Johnson coastwatch | summer 2012 | www.ncseagrant.org 13 fishing 14 coastwatch | summer 2012 | www.ncseagrant.org That’s why the North Carolina Coastal Habitat Protection Plan, or CHPP, defined the characteristics of these six habitats: • The water column is low in sediment and pollutants, and flows unobstructed, connecting the other aquatic habitats. • Shell bottom is made up of concentrations of living and dead oysters, clams and other shellfish. • Submerged aquatic vegetation, or SAV, consists of grasses and other plants that are always underwater. • Wetlands are commonly referred to as swamps or marshes. • Soft bottom is an unconsolidated, unvegetated, sandy or muddy base. • Hard bottom is a rocky outcrop found in oceans or rivers, often attracting a rich abundance of adult and spawning fish. Each was considered when the Strategic Habitat Area Advisory Committee recommended areas of excellence in North Carolina’s coastal plain for nomination as Strategic Habitat Areas or SHAs. The CHPP document, first published in 2005 and updated in 2010, calls for the nomination of SHAs. The Fisheries Reform Act legislated the creation of CHPP. Protecting and enhancing fisheries is the goal in identifying and caring for areas essential for fish reproduction and growth. The CHPP steering committee is made of representatives from Marine Fisheries, Coastal Resources, Environmental Management and Wildlife Resources commissions. The committee holds quarterly public meetings to evaluate strategies and hear research reports. In addition to division directors and N.C. Department of Environment and Natural Resources senior staff, a variety of state environmental officials frequently attend the meetings. “One of the driving goals of CHPP was to unite agencies and to unite divisions and departments within agencies that all have some responsibility for environmental quality that affects fish,” notes Pete Peterson, chair of the CHPP steering committee and vice-chair of the Environmental Management Commission. The committee established a systematic approach for the identification of the SHAs and divided the North Carolina coastal plain into four management regions. Region 1 assessment was completed in 2009. Region 1 includes the Albemarle and Currituck sounds and the Chowan River. The Pamlico Sound area, which includes its tributaries up to the fall-line near Rocky Mount, Roanoke Rapids and Smithfield and 3 miles of ocean waters from the shoreline, was chosen as the second region to examine due to its importance to North Carolina’s fisheries. Region 3 includes Core and Bogue sounds, and New and White Oak rivers. Region 4 includes the Cape Fear River and southern estuaries. Jen Weaver, a graduate fellow funded by both the N.C. Division of Marine Fisheries, or DMF, and North Carolina Sea Grant, was a key player in marking the SHAs for Region 2. Fellow Tim Ellis helped DMF with Region 1. • FISHING THE PAMLICO The Pamlico Sound, which is the largest body of water in the four regions, is known as the fishing gem of North Carolina. A multiplicity of habitat features contributes to the high diversity of the Pamlico system. This includes SAV, oyster-rich rocks and primary nursery areas for juvenile species. All six habitat types occur in the region and make it a prime spot for fishing. Just ask Capt. Adam Jones, owner of AJ’s Sea Duck and Trophy Swan Hunts. “Sometimes we catch and release 25 red drum in a trip,” Jones explains. He says that the fishing is best in late July to September when the red drum migrate with mullet into the sound. “Everything they need to support them is here,” he adds. It’s the same for the blue crab. “Blue crabs are unique in that they use all the habitats in the Pamlico Sound estuary,” comments David Eggleston, a Scott Taylor Map by Christine Jensen integrating coastwatch | summer 2012 | www.ncseagrant.org 15 North Carolina State University marine biolo-gist who has tracked blue crab movement with funding from state and federal research programs administered by Sea Grant. Blue crabs use soft bottom for overwintering and protection from predators. The young megalopa and crabs in the soft-shelled stage live in the SAV. Adults forage in hard bottom, shell bottom and wetlands. The water column is important as the crabs swim about. The females tend to stay in the more saline estuary, while the males may move up the less saline tidal creeks. They meet at the mouths of the creeks for mating. Wetlands, shell bottom and SAV not only directly provide habitat to animals like blue crab, but also are particularly important for improving water quality. They reduce erosion, filter water and slow wave activity. • INTEGRATING INFORMATION Over the course of years, DMF and other researchers have studied the North Carolina coast in an effort to map the many features important to state fisheries. Maps of the locations of important habitats helped identify the SHAs. Sea Grant and DMF jointly award a fellowship each year to an exceptional student to work on fisheries issues under the direction of aquatic biologist Jeff Buckel at NC State’s Center for Marine Sciences and Technology in Morehead City. Weaver, who has a Master of Environmental Management degree from Duke University, came on board as the DMF fellow to analyze fisheries monitoring numbers collected from the Pamlico Sound. These statistics would be part of a massive data collection used by the DMF with sophisticated computer software to nominate SHA locations. When her mentor at DMF found a position elsewhere, Weaver was able to step up to the plate. Her work experience primed her for tackling extensive data sets and also interacting with the various stakeholders in the SHA nomination process. She had held previous positions performing geospatial analysis in coastal wetlands during an internship with the Environmental Defense Fund and in her master’s research. Buckel has high praise for Weaver’s work. “The fellowship is designed such that a recent graduate from a master’s or Ph.D. program can see what it’s like at the front lines, but that’s usually at a distance. She was actually there. “Jen really went above and beyond her job description in this process. She came in and helped DMF out quite a bit more than they had planned. I was impressed with Jen’s knowledge and her ability to run the software and manage the large databases. She did a great job in the fellowship,” he adds. Most would be overwhelmed by the amount of data accrued by the DMF in order to analyze the coastal plain. In fact, the DMF maps designate the six major habitat features of the Pamlico Sound — and more. In order to determine which areas contribute to good fisheries, and which areas do not, one needs maps on positive and negative impacts. The positive aspects already have been mentioned; they are the six habitat types. But within each of these are subsets, such as estuarine and marine soft bottom, high-salinity and low-salinity SAV, and so forth. Other designations include primary nursery areas, fish abundance and the occurrence of rare species. The negative impacts, also called alteration factors, are human activities that may affect habitat quality or are indicative of reduced habitat quality, including areas of prohibited shellfish harvest, dredged channels, industrial waste, military targets, animal operations and more. “It’s one of the few examples where I’ve seen anything like it at the state level — where there’s been an effort to characterize habitats based on the anthropogenic alterations to an area,” Weaver says. Clockwise from top left: Map of the North Carolina coastal plain with the four areas delineated by the Strategic Habitat Area advisory committee. Region 2 SHAs were recently determined.. • Juvenile blue crab find refuge in SAV. • Jen Weaver at North Carolina State University’s Center for Marine Sciences and Technology at Morehead City. • The megalopa, or blue crab in the second larval stage, migrates into the estuary and is attracted to eelgrass. • An acre of submerged aquatic vegetation can support up to 40,000 fish and 50 million invertebrates. C o n t i n u e d David Eggleston Jeff Buckel NOAA a caution 16 coastwatch | summer 2012 | www.ncseagrant.org on dredging near SAV beds. Water quality has improved in the bay, due to a 1983 agreement that reduced allowable phosphorous and nitrogen input into the bay’s tributaries. These changes should improve water clarity for the SAV. Efforts also are being made to plant SAV in areas that once supported large beds but now are completely bare. North Carolina’s waters have lost SAV since pre-Colonial times, but the state has not seen die-offs like those in the Chesapeake. Beginning in 1981, various SAV mapping efforts have been done in North Carolina. The Albemarle-Pamlico National Estuary Program led an interagency effort to map SAV along the entire coast using aerial photography. The survey of the coast was published in 2011 and showed extensive areas of SAV along the sound side of the Outer Banks. In all, North Carolina supports more than 138,000 acres of SAV. In regards to the SHAs, the occurrence of SAV was considered highly important and as a result, almost all of the areas with significant SAV also are contained within a SHA. Although designation as a SHA itself now does not carry with it any regulation, there already are some regulations in place to protect SAV in North Carolina. Clockwise from top left: The waters of the Pamlico Sound support a diversity of life. • Shell bottom filters pollutants, slows erosion and is a prime fishing spot. • AJ’s Sea Duck and Trophy Swan Hunts takes fishermen into the Pamlico Sound for red drum. • Kayaks poised for take-off on the Pamlico Sound. • Wetlands support wildlife and also filter pollutants. • The CHPP covers offshore habitat that includes hard bottom, where fish congregate. Sabrina Varnum Courtesy VisitNC.com Sharon Settlage crunching • CRUNCHING NUMBERS Weaver input data on 24 alteration factors and 35 distinct habitat types into the site-selection program called MARXAN. MARXAN, officially known as MARine eXplicit ANnealing, is used worldwide to determine pristine natural areas. A doctoral student in Australia designed MARXAN and first applied it to the Great Barrier Reef of Australia. In order to input the data into MARXAN, Weaver divided the study area into hexagon areas of 124 acres each. She then calculated a score based on the amount of habitat and human alteration for each of the more than 19,000 hexagons that make up Region 2. A committee of fisheries specialists met to corroborate the MARXAN output based on expert knowledge of the region. In the end, 67 discrete areas were nominated as SHAs, representing 10 percent of the area of Region 2. Of the nominated SHAs, 11 percent are contained in federally or state-owned lands, areas already managed for conservation, or protected as primary nursery areas for fish. These include parts of Alligator River National Wildlife Refuge (NWR), Mattamuskeet NWR, Swan Quarter NWR, Cedar Island NWR and Cape Hatteras National Seashore. “It’s really great that North Carolina is incorporating the link between habitats and fisheries production in its management plans,” Weaver says. • THE CHESAPEAKE BAY: A CAUTION The Pamlico Sound is one of the largest estuaries in the United States, with a higher species diversity than the largest estuary, the Chesapeake Bay, according to a study published in 2006 in the journal, Science. SAV is a factor contributing to the productivity of the Pamlico Sound and other estuaries, such as the Chesapeake Bay. But, SAV is like the proverbial canary in a coal mine — it dies off when water becomes overloaded with nitrogen, phosphorous, pollution or sediment. Beginning in the 1960s, SAV declined precipitously in the Chesapeake Bay. As the SAV disappeared, so did the waterfowl that are dependent upon the plants for food. The year 2007 was the poorest blue crab harvest on record for the Chesapeake, and the U.S. Secretary of Commerce declared an economic disaster for bay-area watermen. Recognizing the importance of SAV, the U.S. Environmental Protection Agency funded biologists to conduct yearly aerial monitoring of Chesapeake Bay SAV. Because SAV is an indicator of good water quality, mapping provides a means to evaluate water health. This effort shows a slight increase in SAV since 1985, but it has not rebounded to pre-1970s levels. Guidelines to protect SAV in the Chesapeake include restrictions do now coastwatch | summer 2012 | www.ncseagrant.org 17 Sharon Settlage Adam Jones Courtesy VisitNC.com resources • WHAT TO DO NOW? The nomination of the SHAs in the Pamlico Sound area leaves many people in the region wondering what happens next. The N.C. Marine Fisheries Commission has approved the SHAs, but they do not become officially designated as a SHA until a regulation is needed. The commission who oversees the habitat is responsible for the management. For example, if a regulation is needed for water quality, then the Environmental Management Commission would be involved. Anne Deaton, habitiat specialist with DMF, emphasizes that management measures only will be considered when the entire coastal plain has been evaluated and “the state will welcome extensive public stakeholder involvement. “The intent is habitat protection and enhancement to promote sus-tainable fishing activity, not restrict it,” Deaton continues. Additionally, the approved SHAs will be “useful for local government to encourage land conservation and best management practices adjacent to sensitive SHAs,” she says. Deaton summarized that the comments were largely positive at a public meeting for input on Region 2 SHA nominations held in the N.C. Department of Environment and Natural Resources Washington Regional Office in October 2011. At the meeting, she reported that “the driving reason for conducting SHA analysis is because scientific literature indicates that protecting a network of priority habitat areas is an effective means of enhancing sustainable fisheries.” The meeting summary notes concern about potential fishing restrictions, particularly in Hyde County, where a large proportion of SHAs are sited. Others stated that “the selection of a large amount of area in Hyde County was a recognition of the significance and the uniqueness of the area.” One participant noted that the wetlands are “important for so many resources,” and that the “SHAs represent aquatic assets that the area needs to support the fishing and tourism industry.” A week after the meeting, the Hyde County Board of Commissioners passed a resolution contesting any regulation that comes about due to the SHA nominations. However, the designations of the SHAs are simply a recognition of valuable fish habitats, such as SAV and the other five habitats types that work together to support the state’s fisheries, Deaton explains. Peterson, CHPP committee chair, agrees. “The SHAs are a great example of where we need to think about working together, so our strategy is a holistic management effort,” he acknowledges. Resources To find out more about the Coastal Habitat Protection Plan, visit the NCDMF homepage at: www.ncfisheries.net and scroll to the link on N.C. Coastal Habitat Protection Plan. To see the North Carolina SAV map, go to the homepage for the Albemarle-Pamlico National Estuary Program at: www.apnep.org and follow the Resources link to maps. electing seafood can be mind boggling. Low in saturated fats and packed with healthful omega-3s, fish are definitely good for you. Except when they’re not. So what’s in your seafood that you might want to avoid? Some North Carolina scientists sought to answer a part of that question. Researchers from North Carolina State University and Duke University set out to determine mercury levels in fish commonly caught and consumed in North Carolina, recognizing that accurate local consumer information about seafood was lacking. Testing Local Seafood for Mercury B Y E - C H I N G L E E What they found about the fish and shellfish they sampled is good news to the ears — and stomachs — of local seafood lovers, fishermen and retailers alike. In general, the majority of seafood the researchers tested had low levels of mercury, lower than the U.S. Environmental Protection Agency’s consumption guidelines. In instances where researchers found samples with concentrations over EPA’s recommended levels, they were from fish that were known to be high in mercury. 18 coastwatch | summer 2012 | www.ncseagrant.org R I G H T : Mahi-mahi is a popular recreational catch. C o n t i n u e d coastwatch | summer 2012 | www.ncseagrant.org 19 Brian Efland 20 coastwatch | summer 2012 | www.ncseagrant.org NC State scientists studied mercury levels in commercial and recreational offshore fish, while Duke researchers tested inshore species for mercury and PCBs. Both projects were funded by the N.C. Fishery Resource Grant Program, which is administered by North Carolina Sea Grant. “This research focuses on providing information about locally caught species, which is as accurate as you can get to make your own decisions about North Carolina seafood. Further, the research focuses on mercury and PCBs, both contaminants often mentioned when discussing seafood choices,” says Marc Turano, who oversees FRG projects for Sea Grant. But the studies also were driven by another factor: to determine if regional and national seafood guides were serving local consumers. “There is a lot of confusion for those who attempt to purchase seafood,” Turano adds. “Most of this confusion surrounds how various groups determine their recommendations.” For example, Monterey Bay Aquarium, Food and Water Watch, and Blue Ocean have seafood watch lists that advise consumers what seafood to eat based on their definition of sustainability and their position on catch methods, with indicators for species considered high in mercury. However, these lists are based on nationwide or regional information. The researchers wanted to provide specific data on North Carolina seafood. “We’re advocating for, whenever possible, providing consumers with local information for seafood consumption,” explains Derek Aday, a faculty member in NC State’s biology department. However, the final decision about what to eat is not his to make. “Our job isn’t to tell people how to act,” he says about his role as a scientist. Instead, it’s “to give as much information as we can give so that, within their own sort of constraints, their own feelings about risk tolerance, they can make informed decisions.” The level of mercury that consumers will accept varies from person to person. “The bottom line is that everybody has a different level of risk tolerance,” Aday observes. TESTING MARINE FISH Mercury occurs naturally in the Earth’s crust but the majority in the environment is from human actions, such as coal-fired power plants, mining activities and industrial discharge. It is a neurotoxin. High doses can damage the brains and nervous systems of fetuses, babies and young children. In aquatic systems, mercury can be converted into methylmercury, a form that can be absorbed and stored, or bioaccumulated, by fish and other sea creatures. There are several drivers of mercury accumulation in fish, mainly size of the animal, its trophic level or location in the food web, and pH of the water where it is found. The main source of human exposure to mercury is through seafood. There are several reasons why mercury content differs in fish. You are what you eat applies to fish too. “If you’re at the top of the food chain and you’re eating a lot of other fish, then your body’s burden is representative of the food that you’ve been consuming over the course of your life,” Aday explains. A fish that is high in the food web likely eats other fish and invertebrates, further concentrating mercury in its body. Furthermore, size — or length, in this case — matters. “The bigger you are, the longer • A B O V E : Mullet are a white or light-colored fish, with a light to moderate flavor. • B O T T O M L E F T : Gray triggerfish have three spines in their first dorsal fin that can be used as a defense against predators. • B O T T O M R I G H T : Juvenile red porgy, such as the pair pictured, are female but will change sex to male as they grow. Vanda Lewis NCSG file photo Marc Turano results reflected the conditions in local waters. To find out, Freitag divided the state into north, central and south fishing districts and collected samples from each region. She selected inshore species that she could pinpoint to a particular location and that represented “a traditional fishing cycle,” allowing her to conduct her work throughout an entire year. Freitag, who blogs on science topics as Bluegrass Blue Crab on Southern Fried Science (www.southernfriedscience.com), also checked for PCBs, chemicals that can cause cancer and other health problems. The team, led by Duke zoology faculty member Dan Rittschof, tested hard and soft crabs, clams, white and pink shrimp, oysters, spot, and mullet — all small, short-lived and low trophic-level species — from local sources. The people who provided samples received a report on the mercury and PCB content of the seafood they provided. “It turns out that we’re much cleaner than the national recommendations. On an average of 10 times less mercury,” Freitag says. And PCB levels were very low too. More than 97 percent of her samples had mercury and PCB concentrations below EPA and FDA levels of concern. “Only a handful of the samples in the study turned out to be unsafe to eat. And of those, you’ve been around to accumulate mercury,” he adds, noting that there’s often a correlation between size and age. “Most of the time, being really big means that you’re old. But being really big also means you’ve eaten a lot of food to get to that size. And so mercury can be a problem from that standpoint.” Aday led a team that studied popular offshore species landed in North Carolina. They sampled mahi-mahi, king mackerel and wahoo from recreational anglers off Dale Britt’s charter boat, Sensation, that is based in Morehead City. Additionally, they collected red porgy, red grouper and gray triggerfish from a Carteret County fish house, popular fish that were available at that time. The researchers tested the samples for mercury and compared their results to EPA and U.S. Food and Drug Administration mercury advisory levels. The EPA’s mercury action level is no more than 0.3 milligrams of mercury in each kilogram of fish or shellfish. The EPA will issue seafood consumption advisories if mercury is above that limit. The FDA draws its line at 1 milligram per kilogram. Beyond that, the FDA can take legal action to remove the contaminated food from the marketplace. “Sometimes our fish were much lower in mercury than what those guidelines would suggest and sometimes they were much higher in mercury than what the guidelines would suggest,” Aday explains of both federal limits. His team found that porgy, triggerfish and mahi-mahi were consistently safe to eat, with mercury levels well below EPA consumption recommendations. The wahoo and grouper they sampled often exceeded EPA’s — but not FDA’s — levels. The king mackerel they tested consistently surpassed both EPA and FDA advisory levels. DECONSTRUCTING THE ’DIRTY DOZEN‘ The Duke study originated from a question posed by Mark Hooper, a crabber from Smyrna. In summer 2009, he noticed that blue crabs and oysters — two of the state’s largest commercial fisheries — were on Food and Water Watch’s so-called dirty dozen list because of mercury concerns. He wanted to find out if that was true for North Carolina. “And we didn’t have a really good answer,” recalls Amy Freitag, a doctoral candidate in marine science and conservation at Duke. “It turns out that most of the studies that had been done had either been in the Chesapeake or in the Gulf of Mexico.” She was unsure if those coastwatch | summer 2012 | www.ncseagrant.org 21 C o n t i n u e d • A B O V E : Sally Petre takes a thumb-sized sample from king mackerel to test for mercury. • L E F T : Duke University researchers took samples from this oyster lease for their mercury and PCB study. Amy Freitag Courtesy Sally Petre 22 coastwatch | summer 2012 | www.ncseagrant.org most of them came from known areas of contamination that are not usually open for harvest anyway,” she adds. “So in terms of what’s getting into the market, it seems to be pretty safe.” Contamination levels were mostly location based. Seafood found in developed areas or near peat bogs, which are a source of natural mercury, had slightly elevated levels of mercury. Fish harvested near landfills or Hewletts Creek, which has experienced sewage spills, had higher PCB concentrations in their system. In light of the results, Freitag explains that ecological, rather than political, boundaries are better suited for these guidelines. “Water body seems to be really important, not states, not fisheries regions,” she notes. Hooper, who has worked on other FRG projects, was curious about the quality of seafood from his area. “It was a little bit risky in that, if we had found contaminants, you’re really going to have to own up to that,” he reflects. “But in my opinion, the seafood was either gorgeous, like I know it is, or it’s contaminated,” he continues. “And if it’s contaminated, then we’ve got some issues that we need to deal with. If the crabs in Core Sound have PCBs and mercury, then we’ve got a larger problem that we need to start to address. So I didn’t mind taking that kind of chance, from my point of view, and putting the stuff out there.” RULES TO EAT BY Hooper is an avid seafood fan, making it a point to eat it regularly. His record is 60 consecutive days. And he’s not above using himself and wife Penny, who is a biology instructor at Carteret Community College in Morehead City, as test subjects. He’s had their hair checked for mercury. The results show that they have very low levels in their system. “I think my point stands that this water here, the water quality is spectacular, especially on Core Sound. We’re bounded by a national seashore. There’s only 10 of these in the nation,” he marvels, citing Cape Lookout National Seashore. But what about the rest of us who don’t have access to fish fresh off the boat? In addition to EPA and FDA fish consumption guidelines, Aday has a couple of rules of thumb for the consumer who wants to select a fish with lower mercury content. First, stay away from fish that are longer lived or at the top of the food chain. Second, within a species, pick the smaller specimens. Freitag notes that her results say that inshore fish, which tend to be lower in mercury than their offshore cousins, are a safer bet. Many local fishermen would agree. “Most fish we use are smaller, inshore fish,” says Eddie Willis, who is part of the Core Sound Seafood cooperative where a group of fishermen combine their catch to provide shareholders with a weekly supply of locally caught seafood. And even when it offers offshore fish, the co-op selects smaller specimens. Freitag says her study also highlights the need for consumers to understand the nuances of food. “I’m looking at it as more of a support for traceability of food and understanding where it comes from and the risks associated with that particular place,” she notes. PUTTING IT ON THE PLATE At a time when anyone with a smartphone can download an app to find out what seafood to eat according to national seafood guides, local information is lacking. And often, national or regional guides paint with a broad brush, using data from a handful of samples and extrapolating that information to a larger area when water quality can vary greatly between neighboring water bodies. Nor do they list all the seafood a consumer can find in North Carolina. • A B O V E : Eddie Willis offers species such as clams, crab and mullet at his fish house. • R I G H T : Oysters can be prepared many ways — including, baked, roasted or steamed. Vanda Lewis Sarah K. Amspacher coastwatch | summer 2012 | www.ncseagrant.org 23 “These national averages and these regional guidelines do have a purpose, and they are relatively informative. But when it comes to local consumption advisories, particularly for mercury, local information is really important in determining consumer risk,” comments Dana Sackett, then a post-doctoral researcher at NC State and part of Aday’s team. Aday agrees. “The take-home message is that whenever we can provide local information to consumers, that will be more reliable than regional and national guidelines that are currently most available.” Local contaminant levels might not always match those stated in regional and national guidelines. For example, one guide says that blue crabs may contain unhealthy levels of mercury and PCBs but that’s not what the Duke study found for crabs in North Carolina. Certainly, navigating seafood consumption guidelines can ruin anyone’s appetite. And there are some who have sworn off seafood because of the confusion around making selections. However, Aday encourages consumers to persevere. “A lot of studies suggest that the benefits of fish consumption outweigh the risks, so unless you’re eating multiple meals per day for a long period of time — if you’re not a nursing mother and you’re not a young child, and unless they’re talking about the really, really high-mercury species like shark and tilefish and king mackerel — then probably regular fish consumption is a good thing,” Aday notes. And Sea Grant’s Turano is helping get the word out by condensing the data from these projects into a brochure. “The pamphlet is a consumers’ digest version of the study results, providing summary data from the study on mercury in locally harvested fish. We are trying to arm the seafood consumer with the most up-to- date information to make the best decisions about buying seafood,” he says. “In the end, North Carolina’s seafood is safe to eat.” Hooper, however, does not need convincing. “In my opinion, this is the finest food on earth. To be able to have access to locally caught, fresh seafood from these waters is spectacular. And with that comes the responsibility on my part to make sure that I handle it as best as I possibly can,” he muses. “And just hope that you people enjoy it and just have a good night when you eat it. Kinda think of us a little bit.” RESOURCES The N.C. Division of Water Quality is in the process of developing a statewide total maximum daily load, or TMDL, for mercury. Officials will estimate the proportions of mercury contributions to water and fish from different sources and determine the appropriate reductions needed. Public comments to the TMDL were to be accepted until June 11. The DWQ monitors the state’s surface water and groundwater. For more on the TMDL, visit: portal.ncdenr.org/web/wq/ and search for “mercury TMDL.” • To view the final Fishery Resource Grant reports, go to: www.ncseagrant.org and search for 10-ST-02 for the NC State project, and for 10-EP-07 for the Duke study. • Download Turano’s Blueprint at: www. ncseagrant.org/s/mercury. • For EPA and FDA recommendations about mercury in seafood, go to: www.epa. gov/waterscience/fish/advice. • A B O V E : Blue crabs are one of the top fisheries in North Carolina. • B o t t o m L e f t : Pink shrimp await buyers at a fish market. • B o t t o m R i g h t : Atlantic wahoo can grow up to 8 feet and weigh more than 150 pounds, with a life span of 5 or 6 years. Ray Midgett Vanda Lewis Marc Turano SONG ACROSS THE WATER N A T U R A L I S T ’ S N O T E B O O K PAT MOORE HAS BEEN BIRDING FOR MORE THAN 50 YEARS — AND AT 84 YEARS OLD SHE IS STILL ACTIVE IN BIRDING ACTIVITIES ON THE OUTER BANKS. “I remember searching for birds before we had the technology that allowed the playing of bird calls while in the field,” she recalls. “I learned their songs by listening to them until I could remember each one. Then I would go home, put a record on my turntable, and match the songs to my memory of them. I can still identify most of them by memory. Much of my pleasure birding in the field comes from hearing and recognizing songs while envisioning the singers.” The North Carolina coast is widely known for dozens of species of gulls, waterbirds and shorebirds. However, many who visit the region miss the chance to see — and hear — some of our state’s most hidden treasures: songbirds of the coast. Whether deep within maritime forests or in undergrowth and trees a few miles inland or even on the Outer Banks, these songbirds are worth going a little out of the way to find. • PAINTED BUNTING Seeing a painted bunting for the first time is an experience few birders forget. John Carpenter, coastal landbird biologist for the N.C. Wildlife Resources Commission, says that its brilliant plumage “makes it the kind of bird you’d expect to see in a tropical rainforest, and yet it can be seen throughout the coastal region of North Carolina, down to Florida, as well as across the Gulf Coast.” Though the painted bunting is known more for its stunning feathering, its song is almost as beautiful. It has a bright, pleasant sound, similar to a warbler’s call, with a sharp chip note at the end. The male painted bunting has a vibrant indigo streak along the top of its head, with a bright red underbelly and patches of lime green and yellow along its back. Females (and juvenile males), though significantly less colored, still sport a bright green back with a pale yellow underbelly. Painted buntings are a monogamous species. They nest in low vegetation, such as shrubs, and generally lay three to four light gray eggs, speckled with brown. The female incubates the eggs for about 11 to 13 days. The young birds are usually ready to leave the nest at around two weeks old. The best time of year to see these birds along the coast is in the summer. They can be found in open brushlands, hedges, yards and thickets. Painted buntings are ground foragers, so look for them in low-level areas. 24 coastwatch | summer 2012 | www.ncseagrant.org A Song Across the Water B Y M E G A N S H A R P ABOVE: Male painted buntings are some of the most brilliantly colored birds in North America. BELOW RIGHT: The female painted bunting and juveniles are green. Jeff Lewis Jeff Lewis N A T U R A L I S T ’ S N O T E B O O K coastwatch | summer 2012 | www.ncseagrant.org 25 • BOAT-TAILED GRACKLE People have always had mixed feelings about grackles. Their pervasive and seemingly destructive habits, along with their large stature and loud, piercing song — a serious of sharp, guttural thrills of chek notes and whistles — have all combined to make them less than popular. “Their tails imitate the stern of a boat, large and fanned out behind them,” says Jeff Lewis, garden and greenhouse manager for the Elizabethan Gardens in Manteo. “It’s hard to believe that they can actually fly with such odd proportions. Between that and their obnoxious song, you can’t miss them.” However, most birders would say that these birds are simply misunderstood. In her book, titled 100 Birds and How They Got Their Names, Diana Wells says that, Swedish immigrants who sought to farm in America’s heartland were constantly doing battle with ABOVE: A female boat-tailed grackle is lighter in color, with a brown head. RIGHT: Two male boat-tailed grackles display their iridescent coloring in the sun. these “corn thieves.” Grackles flooded their farms in numbers that made it impossible to see the ground where they were feeding. The farmers soon realized, however, that the grackles were eating the worms and grubs that did far more damage than the birds ever did. The corn lost was eventually considered to be their “tithe” to the birds. Grackles often nest in reeds or small shrubs that are over the water. The coastal waters of North Carolina are prime habitats for them. They lay one to five eggs that are generally light blue with brown and black scrawls. Fledglings that fall out of the nest and into the water can swim well for short distances, using their wings as paddles. Though the males appear to have a plain black coloring, the boat-tailed grackle actually possesses an iridescent quality to their feathering. When seen up close in the sunlight, their color changes from shimmering blues and purples to greens and bronze. This remarkable sight was enough to make John Audubon write that “no painter, however gifted, could ever imitate them.” • SEASIDE SPARROW As the name implies, the seaside sparrow is “found only on the Atlantic and Gulf coasts,” Lewis says. “This makes North Carolina’s coast a prime place to see them.” It is a stocky songbird, with a short tail and large bill. Its song matches its size — short and muffled with a piercing buzz at the end. C o n t i n u e d Jeff Lewis Walker Golder 26 coastwatch | summer 2012 | www.ncseagrant.org The seaside sparrow, like most sparrows, is rather drab, with olive-gray feathering, black whisker marks and a white throat. However, near both of its eyes, the seaside sparrow has bright streaks of vibrant yellow. In her book, Wells indicates that its French name, moineau, means “a monk,” given for its dull, cowl-like feathering. The English name “sparrow” comes from the Old English word spearw, which translates to “a flutterer,” and accurately describes its quick, haphazard movements. The bird is built for speed and endurance, because it generally nests a good distance away from its food source. Seaside sparrows usually lay two to five eggs per clutch and tend to nest in shrubs. The eggs are bluish white with blotches of brown, which are generally more concentrated at the larger end. They can best be seen on the coast of North Carolina in the summer months. Look in tidal reeds, rushes and salt marshes, especially those with spartina grass. • THE NORTH CAROLINA BIRDING TRAIL Organizers of the North Carolina Birding Trail describe it as the greatest asset to birders in the state. This trail links 310 birding sites from the coast to the mountains. The sites range from national parks and bird sanctuaries to private residences. The requirements? They have to have lots and lots of birds. Lena Gallitano, former president of Wake Audubon Society, was a leader among the team who introduced the birding trail to North Carolina. “It’s the only trail in North Carolina that connects the entire state and is available for the public to go out into nature,” she says. “It’s a wonderful addition to our state.” The North Carolina Birding Trail has three guidebooks to help direct birders along the trails. Each book — one each for the mountains, piedmont and coast — gives detailed information about each site, as well as what birds can be seen. The birding trail not only provides valuable resources for birders and conservationists, but also helps support economic development. Local restaurants and shops located around various sites have teamed up with the birding trail to offer services to visiting birders. Visitors are encouraged to leave “birder calling cards,” which are printed in the back of each guidebook, to let business know that they were referred there by the birding trail resources. “It is providing a service to birders, helping local economies and promoting wildlife habitat conservation,” says Jack Thigpen, North Carolina Sea Grant extension director. He was part of the group that helped create the birding trail. N A T U R A L I S T ’ S N O T E B O O K ADDITIONAL INFORMATION AND LINKS • Audubon North Carolina, nc.audubon.org: This website gives extensive information on local birding events, conservation and how to join your local chapter. • The Cape Fear Audubon Society, www.capefearaudubon.org: This site has information on birds, environmental education and birding events along the southern coast. • Painted Bunting Observer Team, paintedbuntings.org: Developed by a group of University of North Carolina Wilmington researchers and citizen scientists dedicated to preserving this amazing bird, this site provides a detailed overview about the status of the painted bunting in North Carolina. • The North Carolina Birding Trail, ncbirdingtrail.org: Gather information about various sites along the birding trail and the specific birds that can be seen in North Carolina. Trail guides can be ordered from UNC Press at: uncpress.unc.edu or from your local bookstore. • The Cornell Lab of Ornithology, www.allaboutbirds.org: This site acts as a virtual, interactive encyclopedia on birds. Search hundreds of different species of birds, listen to each of their sounds, stream live video of young hawks as they hatch, and flip through stunning photos of falcons in flight. BEGINNER’S WARM WEATHER BIRDING KIT According to Jack Thigpen, North Carolina Sea Grant’s executive director and a birding hobbyist, the best way to get started in birding is to go with a group or someone who is experienced. “I always learn a lot about identifying by sight and sound from people who know more,” Thigpen advises. “I also recommend searching online for your locality with the word ‘birding.’ You might be surprised how many local resources are available.” A basic kit would include a good pair of binoculars, a birding field guide, a camera and notepad. Also, don’t forget sunscreen and insect repellent, as well as a hat. And finally, wear comfortable all-terrain boots and long pants. • CONSERVATION IS KEY Currituck County’s name reflects its avian tradition — it was derived from the Native American word “coratank,” meaning “wild geese.” There was a time when locals claimed to see so many wild birds in flight that they blackened the sky with their wings. Today, Currituck is still full of little treasures for birders, conservationists and tourists alike. Efforts include the Donal C. O’Brien, Jr. Audubon Sanctuary and Center of Pine Island in Corolla. Though still in its early stages, this 3,000-acre sanctuary eventually will be equipped with a large center where visitors can learn about the island, marsh, Currituck Sound and the birds that inhabit it. Walker Golder, the deputy state director for Audubon North Carolina, says that this endeavor “will be a place where we will engage the community and conduct scientific research, which will hopefully result in improved protection efforts for the Currituck area.” ABOVE: The seaside sparrow has dull coloring, except for the streaks of yellow around its eyes. Jeff Lewis coastwatch | summer 2012 | www.ncseagrant.org 27 FUEL SAVINGS C U R R E N T S AS MARINA FUEL PRICES CONTINUE TO RISE, RECREATIONAL AND COMMERCIAL BOATERS ARE — BY NECESSITY — SEEKING WAYS TO DECREASE OPERATING COSTS AND INCREASE FUEL EFFICIENCY. Compared to automobiles, boats are not efficient. For example, a small 18-to-21-foot outboard vessel with a fuel tank capacity ranging from 20 to 50 gallons averages 4 to 8 miles per gallon. A twin-engine offshore vessel with a fuel tank capacity ranging from 80 to 200 gallons may average only 1 to 3 mpg. In either case, a boater may suffer sticker shock at the pump this season with fuel prices potentially exceeding $4 per gallon at marinas in North Carolina. The following fuel saving tips should help boaters save money on their next boating trip — whether it is an offshore fishing excursion or an inshore cruise: • Find the optimum cruising speed: Every boat has a cruising speed at which a certain engine power and vessel trim, or the angle of the boat in relationship to the surface of the water, will result in maximum efficiency. A GPS unit linked to a fuel flow meter can calculate fuel economy automatically. This enables a boater to adjust power and trim settings based on sea conditions. • Maintain the vessel: A properly maintained engine produces power more efficiently. Follow manufacturer-recommended maintenance schedules for fuel filters, water separators, oil changes, valve adjustments, etc. Be certain the propeller is the correct one for the vessel. Propeller diameter, pitch and the number of blades all can affect fuel efficiency. This information is available on engine or vessel manufacturers’ websites. • Reduce weight: One of the easiest ways to increase efficiency is to leave nonessential items at the dock. It takes 2.5 extra horsepower to plane each additional 100 pounds, and an extra gallon per hour of gasoline is burned for each additional 400 pounds in passengers, fuel and gear. However, no fuel savings is worth omitting safety equipment. Check Coastwatch Spring 2012 for an article on boating safety. • Clean vessel bottom: Marine fouling, such as barnacles and slime, will induce unnecessary drag on a vessel and decrease fuel efficiency rapidly. If the vessel is moored in a wet slip, use the proper bottom paint for the hull composition and marine environment. Check with a marine supply provider, or do online research, regarding eco-friendly bottom paints to decrease impacts on the marine environment. • Use good seamanship: Take advantage of favorable sea conditions such as a following wind or tide to decrease engine load. Steer a straight course for the shortest path to your destination. Use autopilot if available to minimize oversteer. • Search for best marina gas prices: Marina fuel prices can vary considerably, so check fuel prices via VHF radio or cell phone before you fill up. • Use green recreational fishing methods: For inshore waters, use alternate methods to reach the fishing grounds, such as paddle fishing from a kayak, paddleboard or canoe. These methods are good for your health while providing a quiet, shallow fishing platform that enables you to reach remote backwater areas. To download Paddle Fishing: An Introductory Guide, visit: www. ncseagrant.org and search for “paddle fishing.” Read about paddle fishing in the Holiday 2008 issue of Coastwatch. For more fuel-efficiency tips, visit: seagrant.uaf. edu/fuel. Order a copy of Buying a Recreational Fishing Boat from: www.ncseagrant.org. Cruising to Fuel Savings Paddling may not be the quickest way to get from here to there, but it saves on fuel costs. B Y B R I A N E F L A N D Nate Bacheler Brian Efland Nate Bacheler Brian Efland Currituck County Goes Green B y S h a r o n S e t t l a g e R Currituck Goes 28 coastwatch | summer 2012 | www.ncseagrant.org P E O P L E A N D P L A C E S educe water runoff, slow it down, and soak it up with plants. This was a central theme in the Currituck Sound Water Quality Fair held in April at the Currituck Rural Center in Powells Point. Barbara Doll, water quality specialist with North Carolina Sea Grant and chairperson of the event, is pleased with the interest generated. “Currituck County has worked hard, along with support from Sea Grant and other organizations, to launch an effort to protect its natural resources and reduce waste and energy use. The fair provided an opportunity to celebrate the achievements made so far, as well as the county’s vast and vital natural resources,” she says. Sea Grant cosponsored the one-day event, along with Currituck County Cooperative Extension, the N.C. Coastal Federation and the University of North Carolina Coastal Studies Institute. Some visitors enjoyed the fair while paddling the waters of the Currituck Sound in brightly colored kayaks. Others talked with extension agents and representatives from various organizations who touted the benefits of delivering clean water to the sound. Plants, and their abilities to filter water runoff from impervious surfaces, were a big draw. Visitors were given water-loving plants, such as mallow or sedge, to plant alongside a pond. The plants provide beautification and filtration benefits, while attracting and supporting wildlife. Plants also were the star feature in a rain garden demonstration. Workers and volunteers installed muhly grass, blueflag irises, and other perennials and shrubs in a garden adjacent to an asphalt parking lot. The slightly concave garden will absorb and filter water runoff before it enters the sound. A representative from the North Carolina Aquarium on Roanoke Island displayed native wetland species including ferns and asters. A raffle winner went home with a healthy Virginia sweetspire donated by the aquarium. Children got their hands wet at a Division of Water Quality demonstration. Representatives had constructed miniature wetlands to show how water is better filtered by a rocky shoreline Graphic based on a photo by Cameron Lowe Sharon Settlage Sharon Settlage Sharon Settlage Sharon Settlage Sharon Settlage Sharon Settlage LEFT TO RIGHT: Fairgoers speak with Anne Deaton about strategic habitat areas. • Paddlers practice. • Eco-friendly cleaning products keep pollution out of Currituck Sound. • A Division of Water Quality representative displays wetland models. • Wayne Twiford Sr. speaks to the audience. • Barbara Doll plants a tree in a rain garden. • A fountain aerates the pond at the Currituck County Cooperative Extension Center. • A freshwater turtle suns itself. • Coreopsis in bloom at the pond’s edge. Green coastwatch | summer 2012 | www.ncseagrant.org 29 P E O P L E A N D P L A C E S combined with grasses instead of a bulkhead built at the edge of a body of water. They also showed how water pollution can find its way to the sound. Capturing rainwater from your roof never looked so easy. Mitch Woodward of N.C. Cooperative Extension exhibited not only the standard rain barrel, which holds about 50 gallons of rainwater, but also 200-gallon barrels and larger cisterns that easily can be equipped with a pump for washing cars. He explained how cisterns can fill quickly from a 2-inch rain event, even on a relatively small roof. Guests were treated to the memories of Currituck Sound by Wayne Twiford Sr., a 74-years-young Currituck native. Twiford told of days of duck hunting in the marshes along the sound. “We could run up the creeks in a motorboat, the grass beds were thick… Now you can’t get up the creeks they have eroded so badly,” he said. “The grass beds aren’t here anymore, they were food for huge rafts of coots, which were a staple for local people. Bass fishing was extremely good,” he added, noting that “this was the bass fishing capital of the country.” Finally, he recounted peaceful nights listening to geese and swans. Cameron Lowe, Currituck County extension director, informed attendees of how the county is now a leader in environmental stewardship. She spoke of a process that started in 2008 with a survey of residents. Respondents listed the environment as the primary concern for the county. Thus, the Currituck County Goes Green initiative started. Currituck County leaders partnered with the county’s Cooperative Extension and Gloria Putnum, Sea Grant coastal resources and communities specialist, to help adopt a program that included sustainability projects and policies. They enlisted Doll’s expertise in wetland restoration, and constructed a wetland and wildlife garden at the Currituck County Cooperative Extension Center. See Coastwatch Holiday 2010 for more information. The pond is now home to turtles, egrets, and wetland plants that were just awakening from winter when Sea Grant specialists and county extension agents checked on the pond in April. Numerous Coreopsis flowers were beginning the process of budding, promising a glorious yellow display into the summer. Back at the Rural Center, fairgoers signed the Currituck County Going Green Pledge for Clean Water. Registrants agreed to use minimal fertilizer and rain barrels, and to add native plants alongside streams and shorelines, among other environmentally friendly activities. Sharon Settlage Sharon Settlage Cameron Lowe Sun, Moon and Raven 30 coastwatch | summer 2012 | www.ncseagrant.org S E A S C I E N C E THE TLINGIT PEOPLE FROM THE PACIFIC NORTHWEST EXPLAINED THE TIDES IN A STORY. The old woman who controlled the water level lived at the edge of the Big Water. She held the tide line tightly across her lap, not letting the Big Water move in and out. Raven, the trickster, and his people enjoyed eating all the good things that washed up on the shore of the Big Water. As the population grew, there was not enough food on the shore to feed everyone. The people sent Raven to trick the old woman into letting go of that line so the water would fall and the people could eat the good things beneath the water. Raven kicked sand into the old woman’s eyes, causing her to drop the tide line. The water fell and the people ate lots of food. But because the water stayed out so long, many creatures from the Big Water began to die. Once again, the people didn’t have enough food, and Raven was sent to remedy the situation. He offered to help the old woman clean the sand out of her eyes if she would let go of the tide line from time to time so the people could eat the water creatures. That compromise worked, and that’s how the tides began. What a lovely, visual explanation. Today, we know that the cyclical ebb and flow of the ocean is caused not by an old woman holding the tide line, but rather by a complex combination of influences. They are: • Astronomical, having to do with the moon and sun; • Meteorological, dealing with weather and atmospheric conditions; • Oceanographic, depending on bathymetry/topography or shape of the ocean bottom; • Geographic, having to do with location on the Earth; and • Hydraulic, dealing with the movement of water. ASTRONOMICAL INFLUENCES The major players in this tide equation are the gravitational pulls of the moon and the sun, along with the rotation of the Earth. Although the sun is 27 times larger than the moon, it also is farther away from Earth. The sun is 93 million miles from the Earth, while the moon is only 250,000 miles away. Because of its proximity, the moon has more influence on our tides. The simplest explanation of the tides involves imagining the Earth covered by water, with no continents. When the gravitation of the moon pulls on the ocean water, it causes a bulge in the ocean surface facing the moon. See the illustration on the next page. There is an equal bulge on the side opposite the moon due to centrifugal force and inertia, causing elliptical tidal bulges. These bulges are the high tides. Now, think of a single point on Earth, such as near Cape Hatteras. As the Earth rotates, this location moves through two bulges — and experiences two high tides — in a 24-hour period. For example, on Tuesday, May 15, 2012, a high tide at Cape Hatteras occurred at about 4:03 a.m. Low tide happened at 10:17 a.m. The next high tide was at 4:45 p.m., followed by another low tide at 11:02 p.m. It takes about 12.5 hours from one high tide to the next high tide, and a little more than six hours between high and low tide. Check any tide table for Rolling with the Tide: Sun, Moon and Raven B Y T E R R I K I R B Y H A T H A W A Y Courtesy VisitNC.com Courtesy VisitNC.com coastwatch | summer 2012 | www.ncseagrant.org 31 S E A S C I E N C E C o n t i n u e d North Carolina and you will notice similar intervals. This is because as the Earth rotates on its axis while the moon revolves around the Earth in the same direction, the bulges shift to stay aligned with the moon’s movement. A full rotation of the Earth takes 24 hours — a solar day. But because the moon is orbiting while the Earth spins, it takes a little longer than one solar day for the same point on the Earth to rotate and catch up with the moon-caused tidal bulge. Thus, a lunar day, or the time between moonrises, is 24 hours and 50 minutes. This time difference between solar and lunar days explains why tides don’t occur at the same time in the same location every day. High and low tide heights vary during each month. Spring tides, or the highest highs and the lowest lows, occur during a new moon or a full moon, when the tidal bulges of the moon and sun are lined up (yes, the sun causes bulges too). In spite of their name, spring tides happen in all seasons. Neap tides, which are the lowest highs and the highest lows, happen during the quarter moons, when the moon and sun are pulling their bulges at right angles to each other. A lunar month is 29.5 days. That’s the amount of time it takes for the moon to go through its four phases — new, first quarter, full and last quarter — and return to the new moon. Thus, spring and neap tides occur approximately every two weeks. TIDAL VARIATIONS There are three types of tidal patterns, as shown in the graphic on the next page. The difference is caused by a combination of ocean basin shape, size and depth, in addition to the adjacent landmasses. The most common pattern is semi-diurnal, with two high tides and two low tides, roughly equal in height, in a 24-hour period. Most of the coasts on both sides of the Atlantic exhibit semidiurnal tides, as well as Greenland and northern Europe. One high and one low tide daily is known as a diurnal tide pattern. Parts of the Gulf of Mexico have diurnal tides, along with southwest Australia and parts of Antarctica. ABOVE: Position of sun, moon and Earth during spring tides (top) and neap tides (bottom). LEFT: Although the sun is 93 million miles away, it plays a role in our tidal changes. BELOW, CLOCKWISE FROM TOP LEFT: The wrack line, debris left behind by high tide, is a great place for beachcombing. • Low tide usually leaves a nice flat beach on which to play. • People, as well as shores birds, coquina clams, and mole crabs, make use of the intertidal zone. • Tides are waves of water that rotate around the ocean basins. Courtesy VisitNC.com Courtesy VisitNC.com Courtesy VisitNC.com Lisa Gardiner/Windows to the Universe Mixed tides exhibit both semidiurnal and diurnal characteristics. Usually semidiurnal in frequency and unequal in height, mixed tides can exhibit a diurnal frequency at times. This tidal pattern is demonstrated along most of the Pacific Coast in the U.S. and in Asia, the Caribbean, and parts of the Indian Ocean. The tidal range is the difference in height between high and low tides. In North Carolina, the range averages 3 feet. Compare that to the tidal range in Georgia, which is about 8 feet. The large difference in tidal range between North Carolina and Georgia is due to the location of the two states in the South Atlantic Bight, a region that lies between Cape Hatteras and Cape Canaveral. It is shaped like an inverted V, with Georgia at the high point and Florida and North Carolina at the deeper ends. As the Earth rotates into the high tide bulge, the shallow continental shelf around Georgia causes the water to pile up faster and higher. A tidal range of 2 to 4 feet is typical for Florida and North Carolina. In Nova Scotia’s Bay of Fundy, the tidal range is about 40 feet. If it’s difficult to imagine that amount of water rising and falling within a few hours, search for “Bay of Fundy tides” on YouTube and enjoy some fascinating videos. In some places, the tides move so much water that large waves, known as bores, are created. Also search on YouTube to watch people surf the powerful “Pororoca” or “Roar of the Amazon.” VALUE OF TIDES Why are tides important? A plethora of people and industries depend on tide predictions, including the shipping community, the military, cruise ships, ferry systems, and commercial and recreational fishermen, as well as engineers who design bridges and docks. Of course, surfers and recreational boaters watch tides too. Even educators base their field-trip schedules on tide predictions. In addition, many marine and estuarine animals, such as horseshoe crabs, mole crabs, grunions and sea turtles, also rely on tidal cycles — and they don’t use man-made tide tables. Their adaptation to lunar rhythms and tidal cycles is the subject of continuing research. Always remember the difference between a tsunami and a tidal wave. A tsunami is a large destructive wall of water that is created by volcanic eruptions, earthquakes or landslides that occur beneath the ocean. It has nothing to do with the tides. The tides are waves of water that rotate around the ocean basins that are created by the gravitational pull of the moon and sun. As a final note: Why did the eel cross the road? To get to the other tide! S E A S C I E N C E 32 coastwatch | summer 2012 | www.ncseagrant.org ADDITIONAL RESOURCES Check out these publications and websites for more information on tides. READ • Koppel, Tom. 2007. Ebb and Flow: Tides and Life on Our Once and Future Planet. Tonawanda, N.Y.: Dundurn Press. ISBN 978- 1-55002-726-6. • McCully James Greig. 2006. Beyond the Moon: A Conversational, Common Sense Guide to Understanding the Tides. Hackensack, N.J.: World Scientific Publishing Company. ISBN 981-256-644-9. • “Tides,” Chapter 9 in Thurman, Harold V. and Alan P. Trujillo. 2002. Essentials of Oceanography, 7th edition. Upper Saddle River, N.J.: Prentice Hall. ISBN 0-13-065235- 0. • “Tides,” Chapter 12 in Segar, Douglas A. 2007. Introduction to Ocean Sciences, 2nd edition. New York: WW Norton & Company. ISBN 978-0-393-92629-3. • “Tides of the Ocean,” Chapter 11 in Davis, Richard A., Jr. and Duncan M. Fitzgerald. 2004. Beaches and Coasts. Malden, Mass.: Blackwell Publishing. ISBN 0-632- 04308-3. • “Tides,” Chapter II, Section G, pages 26–29 in Keener-Chavis, Paula and Leslie Reynolds Sautter. 2000. Of Sand and Sea: Teachings from the Southeastern Shoreline. Charleston, S.C.: South Carolina Sea Grant Consortium. Available from: www.scseagrant. org/pdf_files/of_sand_sea.pdf. VISIT • Tides and Water Levels tutorial on NOAA’s National Ocean Service website, oceanservice.noaa.gov/education/tutorial_tides/ welcome.htm. • Ocean in Motion: Tides — Characteristics on the Office of Naval Research website, www.onr.navy.mil/focus/ ocean/motion/tides1.htm. ABOVE LEFT and RIGHT: Low and high tide in the Bay of Fundy. FAR RIGHT: Low tide exposes oyster shells and mudflats in a North Carolina salt marsh. BELOW RIGHT: Illustrations of diurnal, semidiurnal and mixed tidal patterns. North Carolina exhibits semidiurnal tides. Courtesy NOAA National Ocean Service Spencer Rogers Shireen Nadir Shireen Nadir HEALTHY CHOICES M A R I N E R ’ S M E N U CONSIDER PREPARING THESE HEALTHY AND DELICIOUS MEALS THIS SUMMER USING TRIGGERFISH, CRAB AND MAHI-MAHI. Joyce Taylor’s recipes from Mariner’s Menu: 30 Years of Fresh Seafood Ideas include fun and inventive ways to serve these healthy fish for your friends and family. On page xx, read how researchers funded by the N.C. Fishery Resource Grant program, administered by North Carolina Sea Grant, found that these three options have low levels of mercury. Remember, availability of particular species will vary based on regulations, season and even changing weather. Thus, if the named fish or shellfish is not in your market, ask for another local one that would be similar in texture and flavor — make it your own “catch of the day”! For more information on what fishermen are catching now, go to: www.ncseagrant.org/seafood or check the Mariner’s Menu blog at: marinersmenu. org. The Mariner’s Menu seafood resource book is available in bookstores. To order a copy from North Carolina Sea Grant, call 919/515-9101. CRAB-STUFFED CHERRY TOMATOES • 1 cup backfin crabmeat • 1 pound cherry tomatoes • 1/4 cup mayonnaise • 2 tablespoons finely chopped green onion, including tops • 1 teaspoon fresh lemon juice • 1/4 teaspoon salt • 1/4 teaspoon freshly ground white pepper • 1/2 teaspoon Tabasco sauce • fresh parsley sprigs Remove any shell or cartilage from crabmeat. Wash, dry and hollow tomatoes. Invert and drain on paper towels. In medium bowl, mix mayonnaise, onion and lemon juice. Add salt, pepper and Tabasco and stir. Gently fold in crabmeat. Stuff tomatoes. Chill thoroughly. Garnish serving dish with parsley sprigs. Makes 25 to 30 appetizers. SAUTÉED MAHI-MAHI WITH LEMON-BUTTER SAUCE • 2 pounds mahi-mahi fillets, cut into serving-size pieces • 1/2 cup flour • 1 teaspoon salt • 1/4 teaspoon freshly ground white pepper • 1 cup milk • 3 tablespoons vegetable oil • 3 tablespoons margarine or butter Trim all dark meat from fish. Rinse fish thoroughly and gently pat dry with paper towels. Mix flour, salt and pepper in large shallow dish. Pour milk into another. Dip fillets in milk, drain, then dip in flour mixture. In large skillet, heat oil. Add 3 tablespoons butter and heat. Sauté fillets until golden on one side, about 6 to 8 minutes, longer if pieces are thicker. Turn and repeat on other side. Drain on paper towels. Serves 6 to 8. Lemon-Butter Sauce • 2 tablespoons margarine or butter • 1/4 tablespoon freshly ground white pepper • 2 tablespoons fresh lemon juice Melt margarine in small pan. Add pepper and lemon juice and heat. Pour over fillets. BREADED TRIGGERFISH • 2 pounds triggerfish, cut into 1-inch chunks • 2 eggs • 3 tablespoons water • 1 teaspoon salt • 1/2 teaspoon freshly ground white pepper • 1 cup flour • 1 1/2 cups fresh bread crumbs • 1/2 cup vegetable oil • 1/2 cup margarine or butter Beat eggs with water, salt and pepper. Dredge fish thoroughly in flour. Dip into egg mixture and let excess drain off. Coat with bread crumbs. Heat oil in large skillet. Add butter and heat to 375 F. Cook fish until golden brown on one side, about 5 to 6 minutes. Turn and repeat on other side. Drain on paper towels. Serves 6 to 8. — C.P. Healthy Seafood Choices PHOTO CREDIT????????? coastwatch | summer 2012 | www.ncseagrant.org 33 RIP CURRENTS Don’t fight the current No luche contra la corriente Swim even with the shore, until current weakens, then swim to shore Nada al nivel de la orilla hasta que la resaca se debilite If you can’t escape, float or tread water Si no logra escapar, mantengase a flote pedaleando If you need help, call or wave for assistance Si necesita auxilio, grite o agite los brazos Never swim alone Nunca nade solo More information about rip currents can be found at the following web sites: Para más información acerca de la resaca consulte estos sitios de web: www.ripcurrents.noaa.gov www.usla.org IF CAUGHT IN A RIP CURRENT SI LO ATRAPA LA RESACA RIP CURRENT (RESACA) RIP CURRENT (RESACA) RIP CURRENT RIP CURRENTS ESCAPE ESCAPE ESCAPE ESCAPE www.ripcurrents.noaa.gov ® ¡ESCÁPESE DE LA RESACA! (RESACA) www.usla.org Periodicals Postage Paid at Raleigh, NC North Carolina Sea Grant North Carolina State University Box 8605 Raleigh, NC 27695-8605 S U B S C R I B E Until August 30, buy a one-year subscription to Coastwatch, $15, and get another free. Write “2012 BOGO” on your checks. Educators get this special offer for $10. Use the code “2012 Education.” Send checks to Coastwatch, North Carolina Sea Grant, NC State University, Box 8605, Raleigh, NC 27695-8605. For more information, call 919/515-9101 or email: sandra_harris@ncsu.edu. C O N N E C T Keep up with North Carolina Sea Grant. Visit our website: www.ncseagrant.org for news and upcoming events. Become a “fan” at: www.facebook.com/ncseagrant. Read Coastwatch stories at: www.nccoastwatch.org. On Twitter, follow @ncsg_katiem. N O R T H C A R O L I N A S E A G R A N T : Your link to research and resources for a healthier coast. LEFT: Be safe while you are enjoying the surf. Go to: www.ncseagrant.org and search for “Break the Grip” to order rip current materials, or call 919/515-9101. |
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