00000nam 2200000za 4500 9.806166 CaOODSP 20221107135830 cr ||||||||||| 150406s2000 oncd ob f000 0 eng d CaOODSP eng eng fre n-cn--- Fs70-1/2000-137E-PDF Power, D. (Donald J.), 1956- The status of redfish in division 3O [electronic resource] / D. Power. Ottawa : Fisheries and Oceans Canada, 2000. 21 p. : fig., graphs, tables. Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/137 Includes bibliographic references (p. 9). Nominal catches have ranged between 3,000 t and 35,000 t since 1960. Up to 1986 catches averaged 13,000 t, increased to 35,000 t by 1988 and declined to 3,000 t by 1995 and ranged between 10,000 t and 14,000 t from 1996-1999. Foreign fleets historically accounted for most of catch but Canada has increased its activity in since 1995. From 1996-1999 Canadian catches have alternated between levels of about 8,000 t and 2,500 t due to the lack of market for redfish near the 22 cm size limit. Assessment of this stock has been primarily based on research data due to variable commercial indices and fleets prosecuting different areas of the stock. The 2000 research vessel (RV) survey information for both spring and autumn continues to indicate that stock status has not improved, and may be declining. RV surveys do not adequately sample fish greater than 25 cm which up to 1997 have generally comprised the main portion of the fishery, which makes it difficult to interpret survey estimates in relation to what is happening to the stock as a whole. The fishery since 1998 appeared to target the relatively strong 1988 year class that has grown sufficiently to exceed the small fish protocol of 22 cm. There is concern that there has been little sign in recent surveys of size groups smaller than 17 cm despite using a shrimp trawl, which is very effective at catching small fish. gccst Fisheries resources gccst Salt water fish gccst Fishing area gccst Fisheries management Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/137 (CaOODSP)9.507740 PDF 958 KB https://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-2000-137-eng.pdf