enforcement. Regulations already exist barring the
illegal removal of shellfish from leases. However,
North Carolina does not have planned aquaculture
zones and many leases are not within view of the
leaseholder's waterfront property, hence
sufficient oversight is not possible at all times.
More efficient methods to prevent poaching will
be needed for the industry to expand.
Impacts from hurricanes can be significant,
particularly in the case of off-bottom culture, and
onshore hatcheries or nurseries. Unfortunately,
few options are available for leaseholders once the
lease has been established. Selecting sheltered
locations as appropriate facility sites represents
the best option to minimize hurricane risks.
Deteriorating water quality can impact
existing and potential leaseholders. Temporary
closures, such as those following heavy rains, can
hamper the timing for harvest. Long-term
problems, such as from nearby developments, can
permanently close all or parts of a lease. To some
degree, as with hurricanes, water quality is out of
the control of leaseholders. The best way to
address poor water quality is to site an operation
far from areas with closed waters nearby. Similar
to the risks with hurricanes, proper siting can
minimize water quality problems over the long
term.
The concerns for the industry are perhaps
one reason for the divergence of opinion on the
future of the shellfish culture industry. Forty-two
percent of respondents felt the industry would
grow within the next five years, 38% felt that it
would decline, and 20% thought the industry
would remain the same.
Positive signs for the shellfish culture
industry include growing demand and stable
pricing. Wholesale pricing for hard clams (all
groups) averaged 12.5 cents per clam, while retail
pricing averaged 17.7 cents per clam (all grades).
Oysters averaged $32 per bushel, while individual
oysters averaged 35 cents per oyster.
The problems noted likely contributed to
several respondents indicating that the industry
would decline. While price and overall operation
economics will dictate the growth or decline of the
industry, the major concerns described by current
leaseholders will provide a framework for
directing efforts to assist in industry development.
Specifically, addressing issues with theft, and
deteriorating water quality ā perhaps by
developing methods to better locate new facilities
ā will ultimately assist interested, but concerned,
growers.
Conclusion
Increasing demands for safe and sustainable
seafood, and stable prices for cultured shellfish
products provide opportunities for future shellfish
aquaculture development in North Carolina.
Addressing issues of theft and deteriorating water
quality will assist growth, as long as the
economics of production are maintained.
Substantial potential exists for current
leaseholders to expand. The results of this survey
indicate that the vast majority of leaseholders
utilize extensive methods for shellfish production
with relatively low yields. Modest increases on
existing leases would provide a significant
increase in shellfish production to the state,
without additional leases. However, large-scale
increases in North Carolina's shellfish industry
will likely begin with new operations in which
income generated from the business is a primary
source rather than a supplemental one. Assistance
with siting new shellfish leases could reduce risks
from theft and problematic water quality, and
therefore should be considered among growth
options in the industry.
References
L IS. Census of Agriculture ( USDA ) 2007: Summary and State
Data. Washington, D.C.: USDA National Agriculture Statistics
Service, 2009.
Murray, T.J., and Hudson, K. 2011. Virginia Shellfish
Aquaculture Situation and Outlook Report. Virginia Sea Grant
Marine Extension Program. Virginia Sea Grant Publication #
VSG-11-06.
National Oceanic and Atmospheric Administration. 2009.
Fisheries of the United States 2008. Fisheries Statistics Division,
National Marine Fisheries Service, NOAA, Silver Spring, Md
Contact:
Marc Turano
North Carolina Sea Grant
Mariculture and Blue Crab Specialist
marc turano(5)ncsu.edu
919/513-0122
Raleigh, North Carolina
North Carolina Shellfish Industry
6
North Carolina Sea Grant
North Carolina's Shellfish Industry:
Site Conditions and Economic Impacts
A statewide survey of shellfish leaseholders
Marc J. Turano, North Carolina Sea Grant
Martin Posey, University of North Carolina Wilmington
Troy Alphin, University of North Carolina Wilmington
North Carolina
UNC-SG-12-01 * www.ncseagrant.org