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dc.contributor.authorDavis, M. L.en
dc.contributor.authorBerkson, J.en
dc.contributor.authorKelly, Marcella J.en
dc.date.accessioned2014-05-14T14:36:48Zen
dc.date.available2014-05-14T14:36:48Zen
dc.date.issued2006-04en
dc.identifier.citationDavis, Michelle L. and Berkson, Jim and Kelly, Marcella (2006). "A production modeling approach to the assessment of the horseshoe crab (Limulus polyphemus) population in Delaware Bay," Fishery Bulletin, 104(2), pp. 215-225. http://fishbull.noaa.gov/1042/davis.pdfen
dc.identifier.issn0090-0656en
dc.identifier.urihttp://hdl.handle.net/10919/48011en
dc.description.abstractHorseshoe crab (Limulus polyphemus) is harvested commercially, used by the biomedical industry, and provides food for migrating shorebirds, particularly in Delaware Bay. Recently, decreasing crab population trends in this region have raised concerns that the stock may be insufficient to fulfill the needs of these diverse user groups. To assess the Delaware Bay horseshoe crab population, we used surplus production models (programmed in ASPIC), which incorporated data from fishery-independent surveys, fishery-dependent catch-per-unit-of-effort data, and regional harvest. Results showed a depleted population (B-2003/B-MSY=0.03-0.71) and high relative fishing mortality (F-2002/F-MSY=0.9-9.5). Future harvest strategies for a 15-year period were evaluated by using population projections with ASPICP software. Under 2003 harvest levels (1356 t), population recovery to B-MSY would take at least four years, and four of the seven models predicted that the population would not reach B-MSY within the 15-year period. Production models for horseshoe crab assessment provided management benchmarks for a species with limited data and no prior stock assessment.en
dc.description.sponsorshipNational Marine Fisheries Serviceen
dc.language.isoen_USen
dc.publisherNational Marine Fisheries Service Scientific Publication Officeen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectcontradictory data sourcesen
dc.subjectstock assessmenten
dc.subjectabundanceen
dc.subjecterroren
dc.subjectblooden
dc.subjectfisheriesen
dc.titleA production modeling approach to the assessment of the horseshoe crab (Limulds polyphemus) population in Delaware Bayen
dc.typeArticle - Refereeden
dc.contributor.departmentFish and Wildlife Conservationen
dc.identifier.urlhttp://fishbull.noaa.gov/1042/davis.pdfen
dc.date.accessed2014-05-12en
dc.title.serialFishery Bulletinen


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