00000nam 2200000zi 4500 9.874321 CaOODSP 20221107164147 m o d f cr ||||||||||| 190605s1982 quca|||#ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cnm-- Fs70-8/82-47E-PDF Cleary, Lynn, author. Assessment of the 4T herring stock / by Lynn Cleary. Cap Diamant, Quebec : Canadian Atlantic Fisheries Scientific Advisory Committee, Pêches et Océans, [1982]. 1 online resource (43 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; 82/47 Digitized edtion from print [produced by Department of Fisheries and Oceans]. "Not to be cited without permission of the author.." Includes bibliographical references (pages 12-13). "Landings from the 4T herring stock declined from 270 000 mt in 1970 to 40 500 mt in 1980 and in 1981, due to quota restrictions, to 22 000 mt. An analysis of the commercial catch rates revealed that the abundance indices from the purse seiner fishery have slightly increased after 1979-1980, at which point they had reached a historical low. However, the catch rates from the inshore fishery are relatively stable, with some indices showing a slight increase from 1980 to 1981, and others a slight decrease. The groundfish research cruise catch rate has been declining since 1978." Includes abstract in French. gccst Fisheries gccst Salt water fish Canada. Department of Fisheries and Oceans. Canadian Atlantic Fisheries Scientific Advisory Committee. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) 82/47 (CaOODSP)9.869616 PDF 1.63 MB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-82-47-eng.pdf