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Genetics of whitefish and vendace in England and Wales
Author(s) -
Beaumont A. R.,
Bray J.,
Murphy J. M.,
Winfield I. J.
Publication year - 1995
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1995.tb01611.x
Subject(s) - biology , stocking , coregonus lavaretus , locus (genetics) , ecology , zoology , fish <actinopterygii> , fishery , genetics , gene
Proportion of loci polymorphic ( P ) and mean heterozygosity per locus ( H exp ) were P = 0.130 and H exp = 0.096 for C. albula from the English Lake District and P = 0.217 and H exp = 0.046 for C. lavaretus from the English Lake District and Llyn Tegid, Wales in 1991–2. Significant deviation from the Hardy‐Weinberg model was observed at the superoxide dismutase ( sSOD* ) locus in C. albula from Bassenthwaite Lake. This could have been due to chance, to the Wahlund effect or to selection. Genetic distances between the two species were consistent with their taxonomy and genetic differentiation was much greater for the C. lavaretus populations than for the two geographically close C. albula stocks. Llyn Tegid C. lavaretus showed unique alleles at two loci and conservation of fish in this lake is therefore of great importance. Red Tarn C. lavaretus differed most from other Lake District populations probably due to founder effects from early stocking events and/or from selection due to the high altitude of this lake.