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008150406s2015    oncdb   ob   f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn---
0861 |aFs70-5/2015-059E-PDF
24500|aSpatial modelling of narwhal density in fiords during the 2013 High Arctic Cetacean Survey (HACS) |h[electronic resource] / |cT. Doniol-Valcroze ... [et al.].
24633|aModélisation spatiale de la densité des narvals dans les fjords pendant l’inventaire des cétacés dans l’Extrême-Arctique (ICE-A) de 2013
260 |aOttawa : |bFisheries and Oceans Canada, |c2015.
300 |av, 31 p. : |bfig., graphs, maps, tables.
4901 |aCanadian Science Advisory Secretariat research document, |x1919-5044 ; |v2015/059, Central and Arctic, Quebec, and Newfoundland and Labrador Regions
500 |a"December 2015."
504 |aIncludes bibliographic references (p. 11-12).
5203 |aNarwhal stocks in Baffin Bay, Jones Sound and Smith Sound were surveyed in the 2013 High Arctic Cetacean Survey (HACS). Previous studies have shown that narwhals spend time inside narrow inlets and fiords on their summer distribution range. Thus, any surveying effort must include these areas to provide a credible abundance estimate. Estimating abundance in fiords, however, creates logistical and statistical difficulties because of their narrow complex shapes and high cliffs, preventing the use of conventional distance sampling based on systematic transects. To address these issues, a two-stage cluster sampling design was used in which fiords designated as primary sampling units were selected in a way that maintained equal probability and systematic coverage. Within each fiord, density and abundance of narwhals was estimated using spatial density modeling. Because no observations were made in West Ellesmere fiords, no abundance estimate was produced. Sightings of narwhals in the other fiords during HACS were highly variable.
69207|2gccst|aFisheries resources
69207|2gccst|aWhales
69207|2gccst|aFishing area
69207|2gccst|aFisheries management
7001 |aDoniol-Valcroze, Thomas, |d1976-
7101 |aCanada. |bDepartment of Fisheries and Oceans.
7102 |aCanadian Science Advisory Secretariat.
830#0|aResearch document (Canadian Science Advisory Secretariat)|x1919-5044 ; |v2015/059, Central and Arctic, Quebec, and Newfoundland and Labrador Regions|w(CaOODSP)9.507396
85640|qPDF|s2.17 MB|uhttps://publications.gc.ca/collections/collection_2016/mpo-dfo/Fs70-5-2015-059-eng.pdf