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Estimates of abundance and total allowable removals for Hudson Bay-Davis Strait and south and east Hudson Bay Atlantic walrus (Odobenus rosmarus rosmarus) stocks .: Fs70-6/2015-063E-PDF

"Walrus in the Canadian Arctic have been divided into two genetic populations and seven stocks based on genetic, isotope, satellite tag, and elemental analysis. Two stocks, located in Foxe Basin, are managed as a single group. DFO Science has provided abundance estimates and sustainable harvest advice on four stocks and one partial stock: the Baffin Bay (BB), Western Jones Sound (WJS) and Penny Strait-Lancaster Sound (PS-LS) units belonging to the high Arctic population and for the Foxe Basin and the southeast Baffin Island portion of the Hudson Bay-Davis Strait (HBDS) stock, belonging to the central Arctic population. Owing to limited survey effort, walrus stocks are considered data poor with respect to the assessment of population status. DFO has used the Potential Biological Removal (PBR) method to develop advice about sustainable removals for marine mammals considered data poor. PBR refers to all human-caused mortality so estimating a Total Allowable Removal (TAR) provides the level of removals from all human-caused mortalities that should allow the population to maintain an optimal population size, or grow. The purpose of this document is to use recent aerial survey information to estimate TARs for these two walrus stocks"--p. 4.

Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.826116&sl=0

Publication information
Department/Agency
  • Canada. Department of Fisheries and Oceans.
  • Canada. Ecosystems and Oceans Science.
  • Canadian Science Advisory Secretariat.
TitleEstimates of abundance and total allowable removals for Hudson Bay-Davis Strait and south and east Hudson Bay Atlantic walrus (Odobenus rosmarus rosmarus) stocks .
Variant title
  • Estimates of abundance and total allowable removals for Hudson Bay-Davis Strait and south and east Hudson Bay Atlantic walrus stocks
Series title
  • Canadian Science Advisory Secretariat science advisory report, 1919-5087 ; 2015/063, Québec and Central and Arctic Regions
Publication typeMonograph - View Master Record
Language[English]
Other language editions[Inuktitut], [French]
FormatDigital text
Electronic document
Note(s)
  • Issued also in French under title: Estimations de l'abondance et prélèvements totaux autorisés pour les stocks de morses de l'Atlantique (Odobenus rosmarus rosmarus) de la baie d'Hudson et du détroit de Davis et de la partie sud et est de la baie d'Hudson.
  • Issued also in Inuktitut.
  • "October 2016."
Publishing information
  • [Ottawa] : Fisheries and Oceans Canada, c2016.
Description15 p. : col. ill., col. maps
Catalogue number
  • Fs70-6/2015-063E-PDF
Subject terms
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