00000nam 2200000zi 4500 9.882594 CaOODSP 20240913142049 m o d f cr |n||||||||| 191203s1986 nkca ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-ns ln----- Fs70-8/86-47E-PDF Buerkle, U‏., author. Results of the 1985 winter acoustic survey of NAFO Div. 4WX herring stock / by Udo Buerkle. St. Andrews, New Brunswick : Marine Fish Division, Fisheries Research Branch, Department of Fisheries and Oceans, [1986] 1 online resource (15 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CAFSAC research document ; 86/47 "Not to be cited without permission of the authors." Includes bibliographical references (page 7). "An acoustic herring survey was carried out on the winter fishing grounds of the SW Nova Scotia herring stock. As in previous years, herring were found concentrated in a small area. Replicate surveys of the area of concentration during five nights showed biomass to vary by a factor of about three. Differences in length distributions of herring caught on different nights raise the possibility of a different population of herring moving into the area between Jan. 24 and 30. The maximum biomass recorded was 74% of that recorded in 1984"--Abstract. Includes abstract in French. Atlantic herring fisheries Nova Scotia Atlantic Coast. Fish stock assessment Nova Scotia Atlantic Coast. Hareng Pêche commerciale Nouvelle-Écosse Atlantique, Côte de l'. Ressources halieutiques Évaluation Nouvelle-Écosse Atlantique, Côte de l'. Canada. Department of Fisheries and Oceans. Biological Station (St. Andrews, N.B.) Canada. Dept. of Fisheries and Oceans. Scotia-Fundy Region. Marine Fish Division. Canadian Atlantic Fisheries Scientific Advisory Committee. CAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee) 86/47 (CaOODSP)9.869616 PDF 890 KB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-86-47-eng.pdf