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Two hundred and eighty‐seven longnose sucker Catostomus catostomus were collected from 14 lakes in Labrador, 52 from three lakes in Ontario, 43 from two lakes in British Columbia and 32 from a lake in Yukon; a total of 414 in all. The resulting 34 haplotypes (20 in Labrador) contained moderate haplotypic diversity (h = 0·657) and relatively low nucleotide diversity (π = 3·730 × 10−3. Mean ϕST (0·453,...
All methods of diet analysis in marine mammals, including hard part analysis (HPA), have biases affecting the accuracy of prey‐species identification and frequency in the estimated diet due to differential consumption, digestion and retention. Using PCR amplification of specific prey DNA with species‐specific primers, we developed a DNA‐based method that complements HPA and provides an alternative...
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