00000nam 2200000zi 4500 9.951549 CaOODSP 20250605130613 m o d f cr mn||||||||| 250529e198404##bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x8x8 Fs97-4/1755E-PDF Fs97-4/1755E Cass, A. J., author. A preliminary study of variability in year-class abundance of post-larval and juvenile lingcod in the Strait of Georgia during 1980-82 / by A.J. Cass and J.R. Scarsbrook. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, April 1984. ©1984 1 online resource (iv, 27 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 1755 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 7-8). "Purse seine and bottom trawl surveys were conducted in the Strait of Georgia to estimate the relative strengths of the 1980 and 1981 year-classes of post-larval and age-1 lingcod in the Strait of Georgia. Densities of post-larvae compared favorably with a strong 1975 year-class. As a result, strong 1980 and 1981 year-classes are predicted at recruitment to the fishable stock. Purse seine surveys appear to provide a useful means to examine factors controlling recruitment and to evaluate the impact of stock rebuilding strategies in the Strait of Georgia. Because of limited and localized distributions of age-1 lingcod over trawlable bottom in the study area, bottom trawl surveys may be less suited to estimate recruitment"--Abstract, page iii. Includes abstracts in English and French. Lingcod Infancy Georgia, Strait of (B.C. and Wash.) Fish populations Estimates Georgia, Strait of (B.C. and Wash.) Recruitment (Population biology) Georgia, Strait of (B.C. and Wash.) Fish surveys Georgia, Strait of (B.C. and Wash.) Jeune ophiodon elongatus Géorgie, Détroit de (C.-B. et Wash.) Poissons Populations Estimation Géorgie, Détroit de (C.-B. et Wash.) Recrutement (Biologie des populations) Géorgie, Détroit de (C.-B. et Wash.) Inventaires ichtyologiques Géorgie, Détroit de (C.-B. et Wash.) Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; no. 1755. (CaOODSP)9.505211 PDF 767 KB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1755-eng.pdf