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Assessing temporal and spatial variation in wild populations of Atlantic salmon with particular reference to Asturias (Northern Spain) rivers

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The extent of genetic variation and levels of temporal and spatial heterogeneity was investigated, at six polymorphic protein‐coding loci, in wild Atlantic salmon Salmo salar populations from six rivers of Asturias (Northern Spain). Also, stocks from northern Europe that were among those introduced to repopulate Asturian Rivers, and other wild Spanish and European populations were characterized. The lack of temporal variation observed suggests that effective population sizes of Asturian populations are sufficiently large to prevent extreme levels of genetic drift and that the introduced fish had a negligible contribution to the fisheries of Asturian rivers.

Keywords: Salmo salar; genetic diversity; protein coding‐loci; temporal and spatial variation

Document Type: Regular Paper


Affiliations: Universidad de Oviedo, Departamento de Biología Funcional, Laboratorio de Genética Acuícola, 33071Oviedo, Spain

Publication date: 2005-09-01

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