The genetics of sympatric Arctic charr [ Salvelinus alpinus (L.)] populations from Loch Rannoch, Scotland

Two morphologically and ecologically distinct forms of Arctic charr, Salvelinus alpinus , are found in Loch Rannoch, Scotland. The differences in morphology are adaptations to different modes of life, one being pelagic, the other benthic. Both forms have been the subjects of extensive genetic studie...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Hartley, S. E., McGowan, C., Greek, R. B., Walker, A. F.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1992
Subjects:
Online Access:http://dx.doi.org/10.1111/j.1095-8649.1992.tb02729.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1992.tb02729.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1992.tb02729.x
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Summary:Two morphologically and ecologically distinct forms of Arctic charr, Salvelinus alpinus , are found in Loch Rannoch, Scotland. The differences in morphology are adaptations to different modes of life, one being pelagic, the other benthic. Both forms have been the subjects of extensive genetic studies including cytogenetics, nuclear and mitochondrial DNA analysis, and protein electrophoresis. Significant differences between the two forms are revealed by some techniques but not others and provide evidence for the reproductive isolation of these two morphs. The findings are discussed in relation to the derivation of sympatry and the phylogenetics of Arctic charr.