Northern areas as refugia for temperate species under current climate warming: Atlantic salmon (Salmo salar L.) as a model in northern Europe

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2019
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Horreo, Jose L.
Griffiths, Andrew M.
Stevens, Jamie R.
Garcia-Vazquez, Eva
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Journal of fish biology ; 95 (2019), 1. - pp. 304-310. - ISSN 0022-1112. - eISSN 1095-8649
Abstract
In this work, patterns of geographical genetic diversity in Atlantic salmon Salmo salar were studied across the whole Atlantic Arc; whether these patterns (and thus genetic population structure) were affected by water temperatures was also evaluated. Salmo salar populations were characterized using microsatellite loci and then analysed with reference to ocean surface temperature data from across the region. Analysis showed the presence of a latitudinal cline of genetic variability (higher in northern areas) and water temperatures (sea surface temperatures) determining genetic population structure (the latter in combination with genetic drift in southern populations). Under the current global change scenario, northern areas of Europe would constitute refugia for diversity in the future. This is effectively the inverse of what appears to have happened in glacial refugia during the last glacial maximum. From this perspective, the still abundant and large northern populations S. salar should be considered as precious as the small almost relict southern ones and given appropriate protection. Careful management of the species, coordinated across countries and latitudes, is needed in order to avoid its extinction in Europe.
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570 Biosciences, Biology
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evolution, global change, phylogeography, population structure,Salmo salar, SST stimulus
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ISO 690HORREO, Jose L., Andrew M. GRIFFITHS, Gonzalo MACHADO-SCHIAFFINO, Jamie R. STEVENS, Eva GARCIA-VAZQUEZ, 2019. Northern areas as refugia for temperate species under current climate warming: Atlantic salmon (Salmo salar L.) as a model in northern Europe. In: Journal of fish biology. 95(1), pp. 304-310. ISSN 0022-1112. eISSN 1095-8649. Available under: doi: 10.1111/jfb.13825
BibTex
@article{Horreo2019-07North-46659,
  year={2019},
  doi={10.1111/jfb.13825},
  title={Northern areas as refugia for temperate species under current climate warming: Atlantic salmon (Salmo salar L.) as a model in northern Europe},
  number={1},
  volume={95},
  issn={0022-1112},
  journal={Journal of fish biology},
  pages={304--310},
  author={Horreo, Jose L. and Griffiths, Andrew M. and Machado-Schiaffino, Gonzalo and Stevens, Jamie R. and Garcia-Vazquez, Eva}
}
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