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| 02291nam 2200325za 4500 |
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001 | 9.805721 |
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003 | CaOODSP |
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005 | 20230531111945 |
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007 | cr ||||||||||| |
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008 | 150406s2000 oncd ob f000 0 eng d |
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040 | |aCaOODSP|beng |
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041 | |aeng|bfre |
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043 | |an-cn--- |
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086 | 1 |aFs70-1/2000-012E-PDF |
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100 | 1 |aCairns, David Kenneth, |eauthor. |
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245 | 14|aThe potential impact of seal and seabird predation on North American Atlantic salmon |h[electronic resource] / |cDavid K. Cairns and David G. Reddin. |
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260 | |aOttawa : |bFisheries and Oceans Canada, |c2000. |
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300 | |ai, 34 p. : |bfig., graphs, tables. |
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490 | 1 |aCanadian Stock Assessment Secretariat research document, |x1480-4883 ; |v2000/012 |
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504 | |aIncludes bibliographical references (8-12). |
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520 | |aThe 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. |
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692 | 07|2gccst|aFisheries resources |
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692 | 07|2gccst|aSalt water fish |
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692 | 07|2gccst|aSeals |
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692 | 07|2gccst|aAquatic birds |
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692 | 07|2gccst|aFisheries management |
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710 | 1 |aCanada. |bDepartment of Fisheries and Oceans, |eissuing body. |
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710 | 2 |aCanada.|bCanadian Stock Assessment Secretariat, |eissuing body. |
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830 | #0|aCanadian Stock Assessment Secretariat research document,|x1480-4883 ; |v2000/012|w(CaOODSP)9.507740 |
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856 | 40|qPDF|s791 KB|uhttps://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-2000-012-eng.pdf |
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