Odobenus rosmarus, Walrus : fisheries
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Odobenus rosmarus   (Linnaeus, 1758)

Walrus

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Odobenus rosmarus  AquaMaps  Data sources: GBIF OBIS
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Odobenus rosmarus

Classification / Names Populärnamn | synonymer | CoL | ITIS | WoRMS

Mammalia | Carnivora | Odobenidae

Environment: milieu / climate zone / djupintervall / distribution range Ekologi

Djupbottenlevande; djupintervall ? - 91 m (Ref. 124244).  Temperate; 90°N - 0°S, 180°W - 180°E

Distribution Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

Atlantic Ocean, Northern Pacific, and the Arctic. Greenland, Canada, Norway, Alaska, Russia (Ref. 1394), Iceland, UK, Netherlands, Belgium, Japan, Beaufort Sea, Sea of Okhotsk, Bering Sea, Chukchi Sea, Atlantic Ocean, Barents Sea, Arctic Ocean, Laptev Sea, Hudson Bay, Kara Sea, East Barents Sea, East Siberian Sea, Kamchatka, Celtic-Biscay Shelf (Ref. 1522); Odobenus rosmarus rosmarus: Russia, Canada, Greenland, Iceland, Norway, UK, Barents Sea, Netherlands, Belgium, Atlantic Ocean, Bay of Biscay, Hudson Bay, Kara Sea, Prince Edward Island; Odobenus rosmarus laptevi: Russia, Laptev Sea, Kara Sea, East Siberian Sea; Odobenus rosmarus divergens: Arctic Ocean, Bering Sea, Chukchi Sea, Alaska, Russia, Beaufort Sea, Sea of Okhotsk, Japan, Kamchatka.

Length at first maturity / Size / Weight / Age

Könsmognad: Lm ?  range ? - ? cm Max length : 380 cm TL hane/ej könsbestämd; (Ref. 99323); 300 cm TL (female); publicerad maxvikt: 1.9 t (Ref. 99323); publicerad maxvikt: 1.9 t

Biologi     Ordlista (t.ex. epibenthic)

Found in shallow water and coastal habitats, usually associated with pack ice; regularly haul out on sandy beaches, rocky shores, and ice floes to rest and moult. Feeds on benthic invertebrates (i.e. clams, worms, snails, shrimp and slow-moving fish). Maximum measurements of female species based from Ref. 1394. Found in shallow water and coastal habitats, usually associated with pack ice; regularly haul out on sandy beaches, rocky shores, and ice floes to rest and moult. Feeds on benthic invertebrates (i.e. clams, worms, snails, shrimp and slow-moving fish) (Ref. 1394).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae

Main reference referenser | Koordinator | Medarbetare

Jefferson, T.A., S. Leatherwood and M.A. Webber 1993 FAO species Identification Guide: Marine Mammals of the World. Rome, FAO. 320 p. + 587 figures. (Ref. 1394)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Sårbar, se IUCNs rödlista (VU) (A3c); Date assessed: 05 February 2016

CITES status (Ref. 108899)


CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fiskeri: kommersiell
FAO - fiskeri: landings, species profile | FishSource | Sea Around Us

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Ytterligare information

Trophic Ecology
Food items (preys)
Födosammansättning
Födointag
Predatorer
Ekologi
Population dynamics
Tillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundans
Life cycle
Reproduktion
Könsmognad
Fecundity
Lek
Eggs
Egg development
Larvae
Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Physiology
Syreförbrukning
Human Related
Stamps, coins, misc.
Outreach
Taxonomy
referenser

Internet-källor

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(fiskeri: species profile; publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, sök) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 0.3 - 10.7, mean 2.6 (based on 3262 cells).
Resiliens (Ref. 69278): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.1-0.31).
Fishing Vulnerability (Ref. 71543): Very high vulnerability (76 of 100).
Price category (Ref. 80766): Unknown.