00000nam 2200000zi 4500 9.896138 CaOODSP 20221107174231 m o d f cr bn||||||||| 210204s1991 nscd ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-ns Fs70-8/91-57E-PDF Buerkle, U‏., author. Results of the 1991 acoustic herring surveys in NAFO div. 4W, and revised results of the 1990 surveys / by U. Buerkle. [Dartmouth, N.S.] : Canadian Atlantic Fisheries Scientific Advisory Committee ; St. Andrews, New Brunswick : Department of Fisheries and Oceans, Biological Station, Marine Fish Division, [1991?] 1 online resource (22 pages) : graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; no. 91/57 Cover title. "Not to be cited without permission of the authors." Includes bibliographical references (page 7). "Survey results for the 1990 and for the 1991 acoustic herring surveys in Chedabucto Bay are presented. The 1990 surveys showed individual nightly abundance estimates of over 350,000 tonnes and an average abundance of about 220,000 tonnes between Jan. 6 and Jan. 8. The abundance dropped to about 39,000 tonnes on Jan. 10, and stayed low until the end of the survey on Jan. 24. The average abundance from Jan. 10 to Jan. 24 was about 19,000 tonnes. This is very strong evidence that the herring left the area around Jan. 10"--Abstract, page 2. Includes abstract and series statement in French. Atlantic herring fisheries Nova Scotia Chedabucto Bay. Fish stock assessment Nova Scotia Chedabucto Bay. Hareng Pêche commerciale Nouvelle-Écosse Chédabouctou, Baie de. Ressources halieutiques Évaluation Nouvelle-Écosse Chédabouctou, Baie de. Canadian Atlantic Fisheries Scientific Advisory Committee, issuing body. Canada. Department of Fisheries and Oceans. Biological Station (St. Andrews, N.B.), issuing body. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) no. 91/57. (CaOODSP)9.869616 PDF 1.32 MB https://publications.gc.ca/collections/collection_2021/mpo-dfo/fs70-8/Fs70-8-91-57-eng.pdf