00000nam 2200000za 4500 9.805721 CaOODSP 20230531111945 cr ||||||||||| 150406s2000 oncd ob f000 0 eng d CaOODSP eng eng fre n-cn--- Fs70-1/2000-012E-PDF Cairns, David Kenneth, author. The potential impact of seal and seabird predation on North American Atlantic salmon [electronic resource] / David K. Cairns and David G. Reddin. Ottawa : Fisheries and Oceans Canada, 2000. i, 34 p. : fig., graphs, tables. Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/012 Includes bibliographical references (8-12). The main purpose of this paper is to determine whether seal and seabird predation could be of sufficient magnitude to cause, or be a major contributor to, the decline of North Atlantic salmon returns. It must be emphasized that the paper is an examination of plausibility only, because current data are insufficient to determine whether seals and seabirds are causative agents in the salmon decline. This purpose was achieved by a) estimating the numbers and biomass of post-smolt salmon in the sea, b) determining times and locations of salmon vulnerability to seal and seabird predation, c) reviewing available records of salmon predation by seals and seabirds, and d) determining whether current dietary sampling programs are adequate to measure salmon predation by seals and seabirds. Research endeavors likely to shed light on the effect of seal and seabird predation on salmon populations are also identified. gccst Fisheries resources gccst Salt water fish gccst Seals gccst Aquatic birds gccst Fisheries management Canada. Department of Fisheries and Oceans, issuing body. Canada. Canadian Stock Assessment Secretariat, issuing body. Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/012 (CaOODSP)9.507740 PDF 791 KB https://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-2000-012-eng.pdf