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040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn-nu
045 |ay1y1
0861 |aFs70-5/2020-073E-PDF
1001 |aWatt, Cortney A., |eauthor.
24510|aNarwhal (Monodon monoceros) abundance estimate from the 2018 aerial survey of the northern Hudson Bay population / |cCortney A. Watt, Claire Hornby, and Justine Hudson.
264 1|aOttawa ON : |bCanadian Science Advisory Secretariat (CSAS), |cNovember 2020.
264 4|c©2020
300 |a1 online resource (iv, 15 pages) : |billustration, colour maps.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aResearch document, |x1919-5044 ; |v2020/073
500 |aIssued also in French under title: Estimation de l'abondance de narvals (Monodon monoceros) d'après le relevé aérien de la population du nord de la baie d'Hudson réalisé en 2018.
504 |aIncludes bibliographical references (pages 7-9).
5203 |a"Northern Hudson Bay narwhal (Monodon monoceros) form a distinct genetic and geographically isolated population. Visual aerial surveys were conducted from 3-14 August 2018 in order to estimate the abundance of this narwhal population. This survey was designed to repeat the 2011 survey design, with one change to increase coverage in Wager Bay, as recommended by the Arviq Hunters and Trappers Organization in Naujaat. The survey covered four key areas commonly used by narwhal: Wager Bay, Roes Welcome Sound, Repulse Bay and the northern bays of Gore Bay and Lyon Inlet. The surface abundance estimate for narwhal was 5,055 (CV = 0.270) individuals. After adjustment for availability bias to account for whales not seen due to diving (adjustment factor Ca = 2.80 [CV = 0.05]) and perception bias, which occurs when some observers miss whales (adjustment factor Cp = 1.36 [CV = 0.092]), the estimated adjusted abundance is 19,232 (CV = 0.278, 95% CI = 11,257-32,856) narwhals"--Abstract, page iv.
650 0|aNarwhal|zNunavut.
650 0|aWhale populations|xEstimates|zNunavut.
650 0|aAerial surveys in wildlife management|zNunavut.
7102 |aCanadian Science Advisory Secretariat, |eissuing body.
7101 |aCanada. |bDepartment of Fisheries and Oceans. |bCentral and Arctic Region, |eissuing body.
77508|tEstimation de l'abondance de narvals (Monodon monoceros) d'après le relevé aérien de la population du nord de la baie d'Hudson réalisé en 2018 / |w(CaOODSP)9.896397
830#0|aResearch document (Canadian Science Advisory Secretariat)|v2020/073.|w(CaOODSP)9.507396
85640|qPDF|s819 KB|uhttps://publications.gc.ca/collections/collection_2021/mpo-dfo/fs70-5/Fs70-5-2020-073-eng.pdf