00000nam 2200000zi 4500 9.952789 CaOODSP 20250627100115 m o d f cr mn||||||||| 250627e198607##bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc n-us-wa pn----- x5x8 Fs97-4/1891E-PDF Fs97-4/1891E Westrheim, S. J., author. An anomalous Pacific cod fishery in Juan de Fuca Strait / by S.J. Westrheim and M.G. Pedersen. Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, July 1986. ©1986 1 online resource (iii, 55 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 1891 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 11-14). "During 1974-84, Canadian landings of Pacific cod (Gadus macrocephalus) from eastern Juan de Fuca Strait (MSA 19) rose precipitously to a peak of 957 t in 1981, then declined equally sharply to approximately 131 t in 1985. Prior to 1974, Pacific cod was also the principal species landed, but its annual landings rarely exceeded 100 t. Tagging experiments, landing statistics, age-frequencies, gonad condition, diet, and herring distribution were employed to explain, if possible, the anomalous cod aggregation and resulting fishery. The authors concluded that the anomalous cod aggregation in MSA 19 originated from offshore grounds, and that cod were attracted to MSA19 by an anomalous aggregation of herring inbound to spawn in Georgia Strait"--Abstract, page iii. Includes abstracts in English and French. Pacific cod Juan de Fuca, Strait of (B.C. and Wash.) Pacific cod fisheries Juan de Fuca, Strait of (B.C. and Wash.) Morue du Pacifique Juan de Fuca, Détroit de (C.-B. et Wash.) Morue du Pacifique Pêche commerciale Juan de Fuca, 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. 1891. (CaOODSP)9.505211 PDF 1.04 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1891-eng.pdf