00000nam 2200000za 4500 9.843121 CaOODSP 20221107152454 cr ||||||||||| 171012s2017 bccabd ob f000 0 eng d 978-0-660-09542-4 CaOODSP eng eng fre n-cn-bc Fs97-6/3227E-PDF Use of inverted echosounders to monitor the migration timing and abundance of juvenile salmon in the Discovery Islands, British Columbia [electronic resource] / S. Rousseau ... [et al.]. Sidney, B.C. : Fisheries and Oceans Canada, Science Branch, Pacific Region, 2017. viii, 32 p. : charts (some col.), col. ill., col. maps Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3227 Cover title. Includes bibliographical references. “In this study, the authors evaluate the use of inverted, bottom mounted echosounders to monitor juvenile salmon migration timing and distribution in the Discovery Islands and Johnstone Strait, which constitutes a key area in terms of understanding juvenile salmon mortality during their passage from lower British Columbia rivers to the Pacific ocean. The authors further suggest that moored inverted echosounders can provide insightful data on the behaviour, abundance and migration timing of juvenile salmon and prove to be a non-invasive, cost-effective approach for long-term monitoring purposes”--Introd., p. 1. Includes abstract in French. gccst Salt water fish gccst Animal populations gccst Animal migrations Rousseau, Shani. Canada. Department of Fisheries and Oceans. Pacific Region. Science Branch. Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3227 (CaOODSP)9.504449 PDF 44.60 MB https://publications.gc.ca/collections/collection_2017/mpo-dfo/Fs97-6-3227-eng.pdf