00000nam 2200000za 4500 9.835666 CaOODSP 20230501141951 cr ||||||||||| 170424s2017 oncbd ob f000 0 eng d CaOODSP eng eng fre n-cn-nf n-cn-nu n-cn-qu n-cnh--- Fs70-5/2017-016E-PDF Updated analysis of genetic mixing among beluga stocks in the Nunavik marine region and Belcher Islands area [electronic resource] : information for population models and harvest allocation / A. Mosnier ... [et al.]. Ottawa : Fisheries and Oceans Canada, Canadian Science Advisory Secretariat, 2017. v, 15 p. : col. charts, col. map Canadian Science Advisory Secretariat (CSAS), research document, 1919-5044 ; 2017/016, Quebec Region Cover title. “April 2017.” Title at head of French abstract: Mise à jour des analyses génétiques du mélange des stocks de belugas dans la région marine du Nunavik et des Îles Belchers : information pour les modèles de population et l’allocation de la chasse. Includes bibliographical references (p. 6-8). “In the Nunavik marine region and Belcher Islands area, hunters harvest beluga from a mixture of stocks, including the Eastern Hudson Bay (EHB) summer stock that has been considered as Endangered by the COSEWIC since May 2004. The Nunavik Marine Region Wildlife Board developed a 3-year management plan in 2014 establishing a Total Allowable Take (TAT) based on the proportion of EHB beluga harvested seasonally in the different areas of Nunavik. For their part, the community of Sanikiluaq, located in the Belcher Islands (Nunavut), enacted in 2010 a voluntary annual closure of the summer beluga harvest for the period extending from the July 1 to September 30. The start date of the closure period was later changed to July 15 in 2012. Proportions of EHB belugas in the harvest were estimated through genetic analyses of samples obtained from Inuit hunters. A total of 1,685 samples collected between 1982 and 2015 (including 246 new samples) were used to update the previous results for the different management areas. The analyses indicate that the proportions of EHB beluga in the Hudson Strait harvest were 10.8% in spring and 26.1% in fall which were similar to previous estimates. The number of available samples for north-eastern Hudson Bay in spring and in Ungava Bay during the fall was insufficient for inference. In the Belcher Islands, the proportion of EHB beluga in the spring harvest (April 1- June 30) was estimated to be 1.5%. This proportion increased to 4.4% if spring was extended until July 14. In summer, the updated estimate was 25.6% (July 1 - September 30) and 0% in fall. Besides updating the estimated proportions of the different source populations occurring in the harvest, the additional samples contributed to a decrease in the uncertainty around the estimates"--Abstract, p. iv. Includes abstract in French. gccst Fisheries resources gccst Whales gccst Fishing area gccst Fisheries management Mosnier, Arnaud. Canada. Department of Fisheries and Oceans. Canada. Ecosystems and Oceans Science. Canadian Science Advisory Secretariat. Freshwater Institute (Canada) Maurice Lamontagne Institute. Research document (Canadian Science Advisory Secretariat) 1919-5044 ; 2017/016, Quebec Region (CaOODSP)9.507396 PDF 436 KB https://publications.gc.ca/collections/collection_2017/mpo-dfo/Fs70-5-2017-016-eng.pdf