In conservation genetics and management, it is important to understand the contribution of histor... more In conservation genetics and management, it is important to understand the contribution of historical and contemporary processes to geographic patterns of genetic structure in order to characterize and preserve diversity. As part of a 10-year monitoring program by the Government of Newfoundland and Labrador, Canada, we measured the population genetic structure of the world's most northern native populations of brook trout (Salvelinus fontinalis) in Labrador to gather baseline data to facilitate monitoring of future impacts of the recently opened Trans-Labrador Highway. Six-locus microsatellite profiles were obtained from 1130 fish representing 32 populations from six local regions. Genetic diversity in brook trout populations in Labrador (average H(E)= 0.620) is within the spectrum of variability found in other brook trout across their northeastern range, with limited ongoing gene flow occurring between populations (average pairwise F(ST)= 0.139). Evidence for some contribution ...
North American Journal of Fisheries Management, 2009
On the island portion of Newfoundland and Labrador, Canada, the provincial government relies on r... more On the island portion of Newfoundland and Labrador, Canada, the provincial government relies on roving creel surveys to assess the fishery for brook trout Salvelinus fontinalis. The estimation of catch and harvest rates for these surveys requires on-site interview methods that gather information from incomplete fishing trips. When the objective is to determine total catch, the mean-of-ratios estimator is the
The longnose sucker (Catostomus catostomus) is a widely distributed catostomid, found throughout ... more The longnose sucker (Catostomus catostomus) is a widely distributed catostomid, found throughout Can-ada and much of the northern United States. Although it is a species with significant ecological importance, it has been the focus of only a few studies. Here we describe 17 novel microsatellite loci, and the use of 14 previously described markers from congeneric species formerly untested on longnose sucker. Of the 31 described markers, 19 were polymorphic exhibiting between 2 and 20 alleles. Observed and expected heterozygosities ranged from 0.13 to 0.91, and 0.23 to 0.95 respectively. There was no evidence of null alleles or of deviation from Hardy–Weinberg equilibrium for any locus, and no locus pairs exhibited evidence of linkage disequilibrium.
In conservation genetics and management, it is important to understand the contribution of histor... more In conservation genetics and management, it is important to understand the contribution of historical and contemporary processes to geographic patterns of genetic structure in order to characterize and preserve diversity. As part of a 10-year monitoring program by the Government of Newfoundland and Labrador, Canada, we measured the population genetic structure of the world's most northern native populations of brook trout (Salvelinus fontinalis) in Labrador to gather baseline data to facilitate monitoring of future impacts of the recently opened Trans-Labrador Highway. Six-locus microsatellite profiles were obtained from 1130 fish representing 32 populations from six local regions. Genetic diversity in brook trout populations in Labrador (average H(E)= 0.620) is within the spectrum of variability found in other brook trout across their northeastern range, with limited ongoing gene flow occurring between populations (average pairwise F(ST)= 0.139). Evidence for some contribution ...
North American Journal of Fisheries Management, 2009
On the island portion of Newfoundland and Labrador, Canada, the provincial government relies on r... more On the island portion of Newfoundland and Labrador, Canada, the provincial government relies on roving creel surveys to assess the fishery for brook trout Salvelinus fontinalis. The estimation of catch and harvest rates for these surveys requires on-site interview methods that gather information from incomplete fishing trips. When the objective is to determine total catch, the mean-of-ratios estimator is the
The longnose sucker (Catostomus catostomus) is a widely distributed catostomid, found throughout ... more The longnose sucker (Catostomus catostomus) is a widely distributed catostomid, found throughout Can-ada and much of the northern United States. Although it is a species with significant ecological importance, it has been the focus of only a few studies. Here we describe 17 novel microsatellite loci, and the use of 14 previously described markers from congeneric species formerly untested on longnose sucker. Of the 31 described markers, 19 were polymorphic exhibiting between 2 and 20 alleles. Observed and expected heterozygosities ranged from 0.13 to 0.91, and 0.23 to 0.95 respectively. There was no evidence of null alleles or of deviation from Hardy–Weinberg equilibrium for any locus, and no locus pairs exhibited evidence of linkage disequilibrium.
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