00000nam 2200000za 4500 9.557303 CaOODSP 20221107133919 cr ||||||||||| 150406s2015 bccao #ob f000 0 eng d 978-1-100-25732-7 978-1-100-25731-0 CaOODSP eng eng fre n-cn--- Fs97-6/3123E-PDF Fs97-6/3123E MacLellan, S. E. Chinook Salmon (Oncorhynchus tshawytscha) scale age determination procedures [electronic resource] / by S.E. MacLellan and D.C. Gillespie. Procédures de déterminations de l'âge des écailles de saumon quinnat (Onchorhynchus tshawytscha) Nanaimo, BC : Fisheries and Oceans Canada, 2015. iv, 69 p. : ill., photographs Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3123 Includes bibliographic references (p. 38-39). This manual describes standard protocols used by the Department of Fisheries and Oceans (DFO) Sclerochronology Lab program at the Pacific Biological Station in Nanaimo, B.C. to determine the age of scales sampled from Chinook salmon (Onchorhynchus tshawytscha) captured in Canadian fisheries. Production of best quality age data is dependent on consistent and correct application of method criteria. The manual sets out procedures which have evolved and were developed to be the current operational standards for the DFO Pacific Region. A further purpose is to provide information to other agencies and individuals wishing to employ established scale ageing methods for age determination of Chinook. A series of photos depicting examples of scale growth patterns and their age are included from representative stocks in various regions of B.C. Issued also in printed form. Text in English, abstract in English and French. gccst Fisheries resources Gillespie, D. C. Canada. Department of Fisheries and Oceans. Chinook Salmon (Oncorhynchus tshawytscha) scale age determination procedures / (CaOODSP)9.516001 Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3123. (CaOODSP)9.504449 PDF 14086 KB https://publications.gc.ca/collections/collection_2016/mpo-dfo/Fs97-6-3123-eng.pdf