Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Amount and distribution of biochemical‐genetic variation among wild populations and a hatchery stock of Atlantic salmon, Salmo salar L., from north‐east Ireland

Amount and distribution of biochemical‐genetic variation among wild populations and a hatchery... Tissue samples from a total of 617 Atlantic salmon from seven locations in north‐east Ireland were electrophoretically examined for genetic variation at 28 enzyme loci. Patterns of allelic variation at eight polymorphic loci indicated the existence of genetic differentiation within, as well as among, river systems. This suggests the presence of localized genetically differentiated populations of salmon in N. Ireland. Temporal variation in allelic frequencies was tested among three year classes of wild R. Bush salmon and found to be insignificant compared to the spatial variation. Examination of equivalent year classes of R. Bush hatchery‐reared salmon displayed significant temporal variation at five loci, and significant departures from Hardy‐Weinberg equilibrium at two loci. Heterozygosity was not reduced in the Bush hatchery population (mean 4.3%) compared to the wild populations sampled (range, 2.9‐5.4%; mean, 4.2%). These results are discussed in relation to management of wild populations and maintenance of hatchery stocks. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Fish Biology Wiley

Amount and distribution of biochemical‐genetic variation among wild populations and a hatchery stock of Atlantic salmon, Salmo salar L., from north‐east Ireland

Journal of Fish Biology , Volume 35 (5) – Nov 1, 1989

Loading next page...
 
/lp/wiley/amount-and-distribution-of-biochemical-genetic-variation-among-wild-FchrYvD0Yk

References (19)

Publisher
Wiley
Copyright
Copyright © 1989 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0022-1112
eISSN
1095-8649
DOI
10.1111/j.1095-8649.1989.tb03018.x
Publisher site
See Article on Publisher Site

Abstract

Tissue samples from a total of 617 Atlantic salmon from seven locations in north‐east Ireland were electrophoretically examined for genetic variation at 28 enzyme loci. Patterns of allelic variation at eight polymorphic loci indicated the existence of genetic differentiation within, as well as among, river systems. This suggests the presence of localized genetically differentiated populations of salmon in N. Ireland. Temporal variation in allelic frequencies was tested among three year classes of wild R. Bush salmon and found to be insignificant compared to the spatial variation. Examination of equivalent year classes of R. Bush hatchery‐reared salmon displayed significant temporal variation at five loci, and significant departures from Hardy‐Weinberg equilibrium at two loci. Heterozygosity was not reduced in the Bush hatchery population (mean 4.3%) compared to the wild populations sampled (range, 2.9‐5.4%; mean, 4.2%). These results are discussed in relation to management of wild populations and maintenance of hatchery stocks.

Journal

Journal of Fish BiologyWiley

Published: Nov 1, 1989

There are no references for this article.