Genetic stock identification of Atlantic salmon (Salmo salar) populations in the southern part of the European range
Griffiths, AM; Machado-Schiaffino, G; Dillane, E; et al.Coughlan, Jamie; Horreo, JL; Bowkett, AE; Minting, P; Toms, S; Roche, W; Gargan, P; McGinnity, P; Cross, Tom; Bright, D; Garcia-Vazquez, E; Stevens, JR
Date: 1 April 2010
Journal
BMC Genetics
Publisher
BioMed Central
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Abstract
Anadromous migratory fish species such as Atlantic salmon (Salmo salar) have significant economic, cultural and ecological importance, but present a complex case for management and conservation due to the range of their migration. Atlantic salmon exist in rivers across the North Atlantic, returning to their river of birth with a high ...
Anadromous migratory fish species such as Atlantic salmon (Salmo salar) have significant economic, cultural and ecological importance, but present a complex case for management and conservation due to the range of their migration. Atlantic salmon exist in rivers across the North Atlantic, returning to their river of birth with a high degree of accuracy; however, despite continuing efforts and improvements in in-river conservation, they are in steep decline across their range. Salmon from rivers across Europe migrate along similar routes, where they have, historically, been subject to commercial netting. This mixed stock exploitation has the potential to devastate weak and declining populations where they are exploited indiscriminately. Despite various tagging and marking studies, the effect of marine exploitation and the marine element of the salmon lifecycle in general, remain the "black-box" of salmon management. In a number of Pacific salmonid species and in several regions within the range of the Atlantic salmon, genetic stock identification and mixed stock analysis have been used successfully to quantify exploitation rates and identify the natal origins of fish outside their home waters - to date this has not been attempted for Atlantic salmon in the south of their European range.
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