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008171026s2017    oncbd   obs  f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cnh--
0861 |aFs70-5/2017-061E-PDF
24500|aEstimated abundance of the Western Hudson Bay beluga stock from the 2015 visual and photographic aerial survey |h[electronic resource] / |cCory J.D. Matthews ... [et al.].
260 |aOttawa : |bFisheries and Oceans Canada, Canadian Science Advisory Secretariat, |c2017.
300 |av, 20 p. : |bcol. charts, maps
4901 |aCanadian Science Advisory Secretariat (CSAS), research document, |x1919-5044 ; |v2017/061, Central and Arctic Region
500 |aCover title.
500 |a“October 2017.”
504 |aIncludes bibliographical references.
5203 |a“Aerial visual and photographic surveys of summering Western Hudson Bay (WHB) beluga (Delphinapterus leucas) were conducted in August 2015 to update the previous stock abundance estimate from 2004. The survey area comprised five strata (three visual and two photographic) encompassing high use areas around three river estuaries where recurring aggregations of WHB beluga are found during the summer months. The photographic surveys completely covered high density aggregations in the Churchill River and near the mouth of the Seal River. Poor weather conditions prevented replicated surveys of all but the Churchill River photographic stratum. Near-surface abundance estimates for each stratum were adjusted for availability bias using dive data collected from eight satellite-tagged WHB belugas during the same period as the aerial survey. Summed corrected stratum abundance estimates provided a total stock abundance estimate of 54,473"--Abstract, p. iv.
546 |aIncludes abstract in French.
69207|2gccst|aWhales
69207|2gccst|aAnimal populations
69207|2gccst|aFisheries management
69207|2gccst|aWildlife management
7001 |aMatthews, Cory J. D.|q(Cory Joseph David),|d1977-
7101 |aCanada. |bDepartment of Fisheries and Oceans.
7102 |aCanadian Science Advisory Secretariat.
830#0|aResearch document (Canadian Science Advisory Secretariat)|x1919-5044 ; |v2017/061, Central and Arctic Region|w(CaOODSP)9.507396
85640|qPDF|s968 KB|uhttps://publications.gc.ca/collections/collection_2017/mpo-dfo/Fs70-5-2017-061-eng.pdf