Widespread hybridization between native Atlantic salmon, Salmo salar, and introduced brown trout, S. trutta, in eastern Newfoundland

Widespread hybridization between native Atlantic salmon, Salmo salar, and introduced brown trout,... Hybridization between native Atlantic salmon and introduced brown trout was found to occur at a mean frequency of 0.9% in Atlantic salmon populations in eastern Newfoundland. Hybrids were detected in five of the 10 watersheds studied, but consideration of sampling error suggests that they could have been present in the remaining five watersheds although they were not detected. The frequency found in the Newfoundland and other North American salmon populations is significantly greater than the 0.3% reported for salmon populations in the British Isles, and both are higher than frequencies observed in salmon populations in Sweden. The higher frequency in North America is in accord with the prediction that hybridization between species will be more frequent where one species is introduced than in areas where both are native. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Fish Biology Wiley

Widespread hybridization between native Atlantic salmon, Salmo salar, and introduced brown trout, S. trutta, in eastern Newfoundland

Journal of Fish Biology, Volume 32 (3) – Mar 1, 1988

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Publisher
Wiley
Copyright
Copyright © 1988 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0022-1112
eISSN
1095-8649
D.O.I.
10.1111/j.1095-8649.1988.tb05370.x
Publisher site
See Article on Publisher Site

Abstract

Hybridization between native Atlantic salmon and introduced brown trout was found to occur at a mean frequency of 0.9% in Atlantic salmon populations in eastern Newfoundland. Hybrids were detected in five of the 10 watersheds studied, but consideration of sampling error suggests that they could have been present in the remaining five watersheds although they were not detected. The frequency found in the Newfoundland and other North American salmon populations is significantly greater than the 0.3% reported for salmon populations in the British Isles, and both are higher than frequencies observed in salmon populations in Sweden. The higher frequency in North America is in accord with the prediction that hybridization between species will be more frequent where one species is introduced than in areas where both are native.

Journal

Journal of Fish BiologyWiley

Published: Mar 1, 1988

References

  • Mating of anadromous Atlantic salmon, Salmo salar L., with mature male parr
    Myers, Myers; Hutchings, Hutchings
  • The existence of natural hybrids between the European trout and the Atlantic salmon
    Payne, Payne; Child, Child; Forrest, Forrest

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