00000nam 2200000zi 4500 9.875008 CaOODSP 20221107164338 m go d f cr ||||||||||| 190617s1981 qucab #o f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cnm-- n-cn-qu Fs70-8/81-21E-PDF Cleary, Lynn. Recent changes in length and age composition and length-at-age in herring from purse seine and gillnet fisheries in the southern Gulf of St. Lawrence / Lynn Cleary & Céline Trudeau. Québec : Pêches et Océans, [1981] 1 online resource (23 pages) : illustrations, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; 81/21 (revised) Digitized edition from print [produced by Department of Fisheries and Oceans]. "Not to be cited without permission of the authors." Includes bibliographical references. "Following the decrease in 4T herring landings and because of evidence of a decline in population abundance, length frequencies, age composition and length at age of herring caught in purse seine and gillnet fisheries were examined to detect any changes in trends."--Abstract. Includes abstract in French. gccst Fish gccst Surveys Trudeau, Céline. Canada. Ministère des pêches et des océans. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) 81/21 (revised) (CaOODSP)9.869616 PDF 8.17 MB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-81-21-eng.pdf