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Spiny Lobster Abundance Study at Glover’s Reef, Belize Finds Fishery in Good Shape
February 02, 2015
WCS and other scientist groups recommend fishers increase the size limit for caught lobsters to further strengthen protection
Study provides proof that no-take zones help protect marine resources
NEW YORK (February 2, 2015)
—A recent study conducted in the waters of Glover’s Reef Marine Reserve in Belize by the Wildlife Conservation Society and its partners has revealed good news for spiny lobsters: the abundance of these commercially valuable crustaceans should support local fisheries into the future, an indication that no-take areas and other regulations are protecting the nation’s marine resources.
While the authors maintain that the current level of fishing is at a reasonable target level, they also note that many of the lobsters caught are on the small side. They recommend that increasing the size limit would make the fishery more sustainable.
The study titled “Bayesian depletion model estimates of spiny lobster abundance at two marine protected areas in Belize with or without in-season recruitment” appears in the
ICES Journal of Marine Science
. The authors include: Elizabeth Babcock of the University of Miami; Robin Coleman, Janet Gibson, and Julio Maaz of the Wildlife Conservation Society; James Foley of the Toledo Institute of Development and Environment; and Mauro Gongora of the Belize Fisheries Department.
“Overall, the fishery seems to be in good shape and the no-take areas seem to be protecting the species from overfishing,” said Janet Gibson, Director of WCS’s Belize Program. “One regulatory change that would strengthen protection for the spiny lobster population would be to increase the size limit of lobsters taken, a small adjustment that could ensure a future for the species and the fishery.” This recommendation is also in keeping with that of the Central American Fisheries and Aquaculture Organization (OSPESCA).
In order to produce an accurate abundance estimate of the lobster population in the waters of Belize, the research team applied a method known as a Bayesian depletion model to the catch-per-unit-effort spiny lobster logbook data to estimate the abundance of lobsters on the atoll. As part of a pilot program for rights-based, or managed access, fisheries management at the Glover’s Reef Marine Reserve, Belize fishers are required to keep logbooks of their catch and effort.
The results revealed the total population available to the fishery to be about 66,000 to 79,000 lobsters, with some of these lobsters being recruited to the fishery during the course of the 8-month lobster fishing season. A source of some of this recruitment is likely the no-take or conservation zone, which represents about one-fifth the reserve area. The results also showed that about 70 percent of these lobsters are caught annually.
This study has important implications for the managed access program, as the recommended sustainable level of catch for the area will inform the basis of a lobster catch quota for the Glover’s Reef Marine Reserve.
“Essential to modern fisheries management are estimates of how many fish there are in the sea. In the Caribbean, abundance studies of commercially valuable species such as lobster provide a critical scientific foundation for management decisions,” said Dr. Caleb McClennen, Executive Director of WCS’s Marine Program. “With a few science-informed modifications, the spiny lobster fisheries of Glover’s Reef, and the rest of Belize, will continue to support local communities in a sustainable fashion while protecting critical marine biodiversity.”
This study was made possible through the generous support of the Oak Foundation and The Summit Foundation.
JOHN DELANEY: (1-718-220-3275;
STEPHEN SAUTNER: (1-718-220-3682;
About the Wildlife Conservation Society (WCS)
WCS saves wildlife and wild places worldwide through science, conservation action, education, and inspiring people to value nature.
WCS envisions a world where wildlife thrives in healthy lands and seas, valued by societies that embrace and benefit from the diversity and integrity of life on earth.
To achieve our mission,
WCS, based at the Bronx Zoo, harnesses the power of its Global Conservation Program in more than 60 nations and in all the world’s oceans and its five wildlife parks in New York City, visited by 4 million people annually. WCS combines its expertise in the field, zoos, and aquarium to achieve its conservation mission. Visit: www.wcs.org;
Wildlife Conservation Society's New York Aquarium
is open every day of the year. Summer hours are 10 a.m. to 6 p.m. daily. Fall/winter/spring hours are 10 a.m. to 4:30 p.m., daily. Admission is $9.95 per person; children under 3 years of age are admitted free. Fridays after 4 p.m. in the summer and after 3 p.m. in the fall, admission is by pay-what-you-wish donation. The aquarium is located on Surf Avenue at West 8th Street in Coney Island. The New York Aquarium is located on property owned by the City of New York, and its operation is made possible in part by public funds provided through the New York City Department of Cultural Affairs. For directions, information on public events and programs, and other aquarium information, call 718-265-FISH or visit our web site at
. Now is the perfect time to visit and show support for the WCS New York Aquarium, a beloved part of Brooklyn and all of the City of New York. Due to Hurricane Sandy we are partially opened. Check our website for more information. www.nyaquarium.com .
Mesoamerica and Western Caribbean