Identification of the origin of an Atlantic salmon (Salmo salar L.) population in a recently recolonized river in the Baltic Sea

Molecular Ecology
A VasemägiL O Eriksson

Abstract

The founder event in a recently recolonized salmon population in the Baltic Sea (Gulf of Finland) was investigated. To identify the origin of the founders, four wild populations and two hatchery stocks were analysed using six microsatellite loci. The results of assignment tests and factorial correspondence analysis suggest that the initial recolonizers of the river Selja originated from the geographically nearest (7 km) wild population (river Kunda) but as the result of stocking activities, interbreeding between recolonizers and hatchery individuals has occurred in subsequent years. Although the hatchery releases are outnumbering the wild salmon recruitment in the Baltic Sea at present, our results suggest that the native populations may still have an important role in colonization processes of the former salmon rivers.

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Citations

Feb 15, 2008·PLoS Biology·Jennifer S Ford, Ransom A Myers
Feb 1, 2018·Journal of Fish Biology·C IkediashiJ R Stevens
Jan 13, 2018·Ecology and Evolution·Jose L HorreoEva Garcia-Vazquez
Nov 13, 2012·Ecology and Evolution·Charles IkediashiJamie R Stevens
Feb 25, 2013·Evolutionary Applications·Lilian PukkAnti Vasemägi

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