00000nam 2200000za 4500 9.803169 CaOODSP 20221107135141 cr ||||||||||| 150406s2015 bccdbo ob f000 0 eng d CaOODSP eng n-cn--- Fs70-6/2015-027E-PDF Assessment of Pacific cod (Gadus macrocephalus) for Queen Charlotte Sound (area 5AB) in 2013 [electronic resource]. Assessment of Pacific cod area 5AB Nanaimo, B.C. : Fisheries and Oceans Canada, 2015. 11 p. : fig., graphs, photographs, maps, tables. Canadian Science Advisory Secretariat science advisory report, 1919-5087 ; 2015/027, Pacific Region Issued also in French under title: Évaluation de la morue du Pacifique (Gadus macrocephalus) dans le détroit de la Reine-Charlotte (zone 5AB) en 2013. "May 2015." Includes bibliographical references (p. 10). The status of the Queen Charlotte Sound (5AB) population of Pacific Cod (Gadus macrocephalus) was assessed using a delay difference model. Despite large uncertainty, biomass and recruitment are estimated to have been below the historical average since the mid-1990s, and biomass is currently estimated to be below the median biomass minimum in 1985. Model estimates of biomass and stock status were very sensitive to prior assumptions about natural mortality, variance in the mean weight data, and the goodness of fit to the indices of abundance, particularly the commercial CPUE data. There is considerable concern that the 5AB fishery switched from a directed fishery to an avoidance fishery after the implementation of Individual Vessel Quotas in 1997, and the influence that this has had on the model’s interpretation of catch and CPUE data. gccst Fisheries resources gccst Salt water fish gccst Fishing area gccst Fisheries management Canada. Department of Fisheries and Oceans. Canadian Science Advisory Secretariat. Évaluation de la morue du Pacifique (Gadus macrocephalus) dans le détroit de la Reine-Charlotte (zone 5AB) en 2013 (CaOODSP)9.803170 Science advisory report (Canadian Science Advisory Secretariat) 1919-5087 ; 2015/027, Pacific Region (CaOODSP)9.506226 PDF 365 KB https://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-6-2015-027-eng.pdf