00000nam 2200000zi 4500 9.879379 CaOODSP 20221107165510 m o d f cr |n||||||||| 190918s1979 nscd #ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- Fs70-8/79-21E-PDF Gray, David F., author. 1979 assessment of cod in divisions 4T and 4Vn (Jan-Apr) / by David F. Gray. Dartmouth, Nova Scotia : Marine Fish Division, Fisheries & Oceans Canada, Bedford Institute of Oceanography, [1979] 1 online resource (28 pages) : charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; 79/21 "Not to be cited without permission of author." Includes bibliographical references (page 5). "Catches from this stock reached an all time recorded high of 110 thousand t in 1956 apparently as a result of the reaction of the cod biomass to the destruction of pelagic stock biomass by epizootic disease. From that point catches declined to 41 thousand t in 1967. However reported catches then climbed to about 60 thousand t per year in the early 1970's primarily due to an increase in interest in the 4Vn winter fishery by foreign countries and large Canadian otter trawlers. With dropping catch rates and decline in numbers estimated from research tows, there was an indication that the population was being exploited at fishing mortalities above sustainable levels"--Introduction. Cod gccst Fisheries Canada. Department of Fisheries and Oceans. Canada. Dept. of Fisheries and Oceans. Scotia-Fundy Region. Marine Fish Division. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) 79/21 (CaOODSP)9.869616 PDF 1.01 MB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-79-21-eng.pdf