00000nam 2200000zi 4500 9.952629 CaOODSP 20250624092950 m o d f cr mn||||||||| 250624e198504##bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- w9x8 Fs97-4/1813E-PDF Fs97-4/1813E Groundfish stock assessments for the west coast of Canada in 1984 and recommended yield options for 1985 / by A.V. Tyler and G.A. McFarlane, editors. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, April 1985. ©1985 1 online resource (v, 353 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 1813 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 343-353). "Stock assessments and yield options are developed for the Pacific coast of Canada for the following species: lingcod, Pacific cod, Dover sole, rock sole, English sole, sable fish, Pacific hake, spiny dog fish, walleye pollock, Pacific ocean perch, yellowmouth rockfish, rougheye rockfish, silvergrey rockfish, … and canary rockfish. The yield options are recommendations to the fishery managers of the Field Services Division on catch limitations and other fishery management procedures. Biological considerations only, rather than economic factors, are addressed in this document. The yield options are quantitative and are based on a series of appropriate mathematical methods, e.g., virtual population analysis, dynamics pool analysis, and Fournier stock-reconstruction procedures. Alternative options address the possibility of the fishery managers considering high risk and low risk yields in relation to a stock's future potential to produce. Other options, particularly for rockfish and flatfish species, provide a selection of alternatives for managers to consider in regard to whether a stock should be re-built, maintained at status quo, or decreased through non-sustainable catches for present economic emergencies"--Abstract, page iv. Includes abstracts in English and French. Groundfishes British Columbia Pacific Coast. Groundfish fisheries British Columbia Pacific Coast. Fish stock assessment British Columbia Pacific Coast. Poissons de fond Colombie-Britannique Pacifique, Côte du. Poissons de fond Pêche commerciale Colombie-Britannique Pacifique, Côte du. Ressources halieutiques Évaluation Colombie-Britannique Pacifique, Côte du. Tyler, A. V. (Albert Vincent), 1938- editor. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; no. 1813. (CaOODSP)9.505211 PDF 8.21 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1813-eng.pdf