Assessment of Pacific cod (Gadus macrocephalus) for Queen Charlotte Sound (area 5AB) in 2013 .: Fs70-6/2015-027E-PDF
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.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.803169&sl=0
| Department/Agency | Canada. Department of Fisheries and Oceans. Canadian Science Advisory Secretariat. |
|---|---|
| Title | Assessment of Pacific cod (Gadus macrocephalus) for Queen Charlotte Sound (area 5AB) in 2013 . |
| Variant title | Assessment of Pacific cod area 5AB |
| Series title | Canadian Science Advisory Secretariat science advisory report, 1919-5087 ; 2015/027, Pacific Region |
| Publication type | Series - View Master Record |
| Language | [English] |
| Other language editions | [French] |
| Format | Electronic |
| Electronic document | |
| Note(s) | 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). |
| Publishing information | Nanaimo, B.C. : Fisheries and Oceans Canada, 2015. |
| Description | 11 p. : fig., graphs, photographs, maps, tables. |
| Catalogue number |
|
| Subject terms | Fisheries resources Salt water fish Fishing area Fisheries management |
Request alternate formats
To request an alternate format of a publication, complete the Government of Canada Publications email form. Use the form’s “question or comment” field to specify the requested publication.- Date modified: