Stock discrimination of belugas (Delphinapterus leucas) hunted in eastern Hudson Bay, northen Québec, Hudson Strait, and Sanikiluaq (Belcher Islands), using mitochondrial DNA and 15 nuclear microsatellite loci - Discrimination des stocks de bélugas (Del
نویسنده
چکیده
evaluation of fisheries resources in Canada. As such, it addresses the issues of the day in the time frames required and the documents it contains are not intended as definitive statements on the subjects addressed but rather as progress reports on ongoing investigations. * La présente série documente les bases scientifiques des évaluations des ressources halieutiques du Canada. Elle traite des problèmes courants selon les échéanciers dictés. Les documents qu’elle contient ne doivent pas être considérés comme des énoncés définitifs sur les sujets traités, mais plutôt comme des rapports d’étape sur les études en cours.
منابع مشابه
Groups of related belugas (Delphinapterus leucas) travel together during their seasonal migrations in and around Hudson Bay.
Social structure involving long-term associations with relatives should facilitate the learning of complex behaviours such as long-distance migration. In and around Hudson Bay (Canada), three stocks of beluga whales form a panmictic unit, but have different migratory behaviours associated with different summering areas. We analysed genetic variation at 13 microsatellite loci among 1524 belugas,...
متن کاملNumbers and distribution of beluga whales, Delphinapterus leucas, in James Bay, eastern Hudson Bay, and Ungava Bay in Canada during the summer of 1993
James, Hudson and Ungava bays are summering areas for stocks of beluga whales (Delphinapterus leucas) (Sergeant and Brodie, 1975; Finley et al., 1982; Smith and Hammill, 1986; Richard et al., 1990). There are several apparently separate summer groups, which include a summer group of ~23,000 individuals in western Hudson Bay, a group of 1500 individuals in the eastern Hudson Bay arc, and a few i...
متن کاملEvidence for a Decline in Northern Quebec (Nunavik) Belugas
Systematic aerial line-transect surveys of beluga whales, Delphinapterus leucas, were conducted in James Bay, eastern Hudson Bay, and Ungava Bay from 14 August to 3 September 2001. An estimated 7901 (SE = 1744) and 1155 (SE = 507) belugas were present at the surface in the offshore areas of James Bay and Hudson Bay, respectively. An additional 39 animals were observed in estuaries during the co...
متن کاملBeluga whale summer habitat associations in the Nelson River estuary, western Hudson Bay, Canada
To understand beluga whale (Delphinapterus leucas) estuarine use in the Nelson River estuary, southwest Hudson Bay, we recorded and examined beluga movements and habitat associations for the July through August period in 2002-2005. We compared locations of belugas fitted with satellite transmitters ("tags") (2002-2005) and aerial-surveyed (2003 and 2005) belugas for years of differing freshwate...
متن کاملAbundance indices of belugas in James Bay and eastern Hudson Bay in summer 2004 Indices d ' abondance
* This series documents the scientific basis for the evaluation of fisheries resources in Canada. As such, it addresses the issues of the day in the time frames required and the documents it contains are not intended as definitive statements on the subjects addressed but rather as progress reports on ongoing investigations. * La présente série documente les bases scientifiques des évaluations d...
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