00000cam 2200000zi 4500 9.957985 CaOODSP 20251205071647 m o d f cr bn||||||||| 251204t19921992bccab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-bc pn----- x9x9 Fs97-4/2174E-PDF Fs97-4/2174E Cooke, K. D., author. A hydroacoustic survey of Pacific hake on the continental shelf off British Columbia from the Canada/U.S. boundary to Queen Charlotte Sound : August 13 to 28, 1991 / by K. Cooke, R. Kieser, M.W. Saunders, W.T. Andrews, and M.S. Smith. Nanaimo, B.C. : Biological Science Branch, Department of Fisheries and Oceans, Pacific Biological Station, 1992. ©1992 1 online resource (iv, 39 pages) : illustration, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 2174 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (pages 6-7). "A hydroacoustic survey for Pacific hake was conducted off the lower west coast of Vancouver Island and into Queen Charlotte Sound from August 13 to 28, 1991. Total and hake biomass estimates are given for the survey area. Summary information of associated midwater trawl catches is included. Acoustic biomass estimates from research conducted on the influence of environmental factors on hake distribution are reported. Successive passes were made over a 350 km² grid to compare day and night acoustic biomass, observe fish distribution and diel behavior patterns, examine variability in acoustic abundance estimation and obtain information on optimal survey procedures"--Abstract, page iii. Includes abstracts in English and French. Pacific hake British Columbia Pacific Coast. Fish surveys British Columbia Pacific Coast. Merlu du Pacifique Colombie-Britannique Pacifique, Côte du. Inventaires ichtyologiques Colombie-Britannique Pacifique, Côte du. Canada. Department of Fisheries and Oceans, issuing body. Pacific Biological Station (1972- ), issuing body. Canadian manuscript report of fisheries and aquatic sciences ; no. 2174. (CaOODSP)9.505211 PDF 1.23 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-2174-eng.pdf