The State of Circumpolar Walrus Populations

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97 Population 1 Stock or area 2 Stock size Year of estimate Quality of abundance estimate 3 (method) Hunted Est. landed catch 4 Quality of catch estimate 3 Population trend 61 (historic harvests higher) 5 Mix: NWHB, SHSUBL 7,100 (95% CI= 2,500 to 20,500) 2014 F (adjusted haulout counts) Yes NWHB: 2001- 2010 mean 167 (±62) F Unknown Mix: NWHB, SHSUBL , SEB? 6,020 (CV 0.40, 95% CI 2,485-14,585) 2012 F (fully-corrected aerial strip-transect survey in Hudson Strait) Yes SHSUBL: 2001-2010 average 47 (±10) F Unknown CLA 100-20 2014 F (adjusted haulout counts) Yes 2001-2010 mean 6 (±4) F Unknown EG 1,430 (CV 0.45) 2009 F (fully corrected aerial survey) Yes Recent catches ca. 9-12 year, current quota of 20/year (historic harvests higher) 5 G Uncertain, possibly recovered (stable or increasing) S-FJL S 3,886 (95% CI 3,553-4,262) 2012 G (adjusted haulout counts) No (protected in 1952) -- -- Increasing
98 Population 1 Stock or area 2 Stock size Year of estimate Quality of abundance estimate 3 (method) Hunted Est. landed catch 4 Quality of catch estimate 3 Population trend FJL ?? (common population with Svalbard) -- No data No -- -- Increasing? KS-SBS- NZ SBS (PS) 3,943 (95% CI 3,605–4,325) 2011 G (Adjusted haulout counts) No -- -- Unknown (possibly stable? Similar to (less precise) 2014 estimate KS-NZ 1,355 2013 P (Direct aerial count, no adjustments) No -- -- Unknown 1 CHA-NWG = Canadian High Arctic - Northwest Greenland (Canada, Greenland); CCA-WG = Canadian Central Arctic - West Greenland (Canada, Greenland); CLA = Canadian Low Arctic (Canada); EG = East Greenland (Greenland); S-FJL = Svalbard - Franz Josef Land (Norway, Russia); KS-SBS-NZ = Kara Sea - Southern Barents Sea - Novaya Zemlya (Russia). 2 PS-LS = Penny Strait-Lancaster Sound (Canada); WJS = Western Jones Sound (Canada); BB = Baffin Bay (Canada, Greenland); FB = Foxe Basin (Canada); NWHB = North and West Hudson Bay (Canada); SEB = South and East Baffin (Canada, and animals cross Davis Strait to West Greenland); SHSUBL = Southern Hudson Strait-Ungava Bay-Labrador (Canada); S = Svalbard (Norway); FJL = Franz Josef Land (Russia); SBS (PS) = Barents Sea (Pechora Sea) (Russia); KS-NZ = Kara Sea-Novaya Zemlya (Russia). 3 G = Good (minimal bias, acceptable precision); F = Fair (problems with quality of data, precision uncertain); P = Poor (considerable uncertainty, bias or few data).
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REPORT © Mikhail Cherkasov / WWF-R
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2 ABSTRACT The walrus (Odobenus ros
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4 PURPOSE AND SCOPE The WWF Arctic
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6 beginning ca. 50,000 yBP that lim
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8 Walruses from the Foxe Basin stoc
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10 al. 2003). These differences coi
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12 under favourable environmental c
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14 appeared to be male. Crude measu
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16 comparable data for proper asses
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18 (Fay 1982). The walruses that ar
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20 A joint U.S.-Russia survey, with
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22 for the conservation of walruses
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24 provisions for walrus protection
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26 northwestern and northeastern Gr
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28 Franz Josef Land was discovered
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30 USFWS 2014). The population is c
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32 they return from hunting trips (
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34 The USFWS has also developed gui
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36 how many walruses are represente
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38 (www.iucn.org/about/). The IUCN
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40 Atlantic Walruses In Canada, the
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42 Pacific walruses The primary sou
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44 Foxe Basin (BIMC 2012). It has b
Page 47 and 48: 46 define shipping channels, season
Page 49 and 50: 48 Alaska may be a successful manag
Page 51 and 52: 50 of the population (Born et al. 1
Page 53 and 54: 52 In the Bering and Chukchi seas,
Page 55 and 56: 54 Garlich-Miller et al. (2011) ass
Page 57 and 58: 56 Hamilton et al. (2014) assessed
Page 59 and 60: 58 Canadian High Arctic - Northwest
Page 61 and 62: 60 2014a, b; Lindqvist et al. 2016)
Page 63 and 64: 62 reproduction and survival rates,
Page 65 and 66: 64 Jurisdictions with walrus popula
Page 67 and 68: 66 REFERENCES Allen, J.A. 1880. His
Page 69 and 70: 68 Boertmann, D., A. Mosbech, D. Sc
Page 71 and 72: 70 Chernook, V.I., C. Lydersen, D,M
Page 73 and 74: 72 Durner, G.M., D.C. Douglas, R.M.
Page 75 and 76: 74 Galicia, M.P., G.W. Thiemann, M.
Page 77 and 78: 76 Environmental Ltd., Edmonton AB
Page 79 and 80: 78 Collection of scientific papers
Page 81 and 82: 80 University of Guelph, Ontario, C
Page 83 and 84: 82 Noren S.R., M.S. Udevitz, and C.
Page 85 and 86: 84 Phillipa, J.D.W., F.A. Leighton,
Page 87 and 88: 86 Shitova M., M. Babushkin, A. Bol
Page 89 and 90: 88 Swenson, J.E., A. Bjørge, K. Ko
Page 91 and 92: 90 Witting, L. and E. Born. 2014. P
Page 93 and 94: 92 Figure 2. Atlantic walruses in F
Page 95 and 96: Figure 4. Map of Atlantic walrus po
Page 97: TABLES Table 1. Assessment of Atlan
Page 101 and 102: 100 Table 2. Assessment of Pacific
Page 103 and 104: 102 Table 3. Conservation status of
Page 105 and 106: 104 Table 4. Summary of primary wal
Page 107 and 108: 106 Country Subspecies Hunt managem
Page 113 and 114: 112 Subspecies Population 1 Knowled
Page 115: 114 Subspecies Population 1 Knowled
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The State of Circumpolar Walrus Populations

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