00000cam 2200000za 4500 9.802710 CaOODSP 20251205084848 cr ||||||||||| 160412s2015 oncbo ob f000 0 eng d 978-0-660-03209-2 CaOODSP eng eng fre n-cn--- Fs97-6/3139E-PDF Towers, Jared R., author. Photo-identification catalogue and status of the northern resident killer whale population in 2014 [electronic resource] / by J.R. Towers, G.M. Ellis and J.K.B. Ford. [Ottawa] : Fisheries and Oceans Canada, c2015. iv, 75 p. : fig., maps, photographs Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3139 Includes bibliographical references (p. 7-13). Field studies of the life history and ecology of killer whale populations off Canada’s west coast have been conducted annually since 1973. These studies are based on the identification of individual whales from photographs of permanent, natural markings. In this report, we summarize abundance trends in the northern resident killer whale population between 1974 and 2014, and provide an updated photo-identification catalogue of individuals. In 2014, the northern resident population was composed of 290 whales. The population has grown at an average mean annual rate of 2.2% since 1974. Continued population monitoring by photo-identification is a key research activity in the recovery strategy for this threatened population. gccst Endangered species gccst Whales gccst Wildlife management Canada. Department of Fisheries and Oceans, issuing body. Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3139 (CaOODSP)9.504449 PDF 26.80 MB https://publications.gc.ca/collections/collection_2016/mpo-dfo/Fs97-6-3139-1-eng.pdf PDF 24.22 MB https://publications.gc.ca/collections/collection_2016/mpo-dfo/Fs97-6-3139-2-eng.pdf