Mammalia |
Carnivora |
Ursidae
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
Demersal. Polar
Atlantic Ocean and the Arctic: Ursus maritimus maritimus: Canada, Northwest Territories, Baffin Island, Greenland, Svalbard, Russia, Labrador, Newfoundland, Quebec, Iceland, Norway; Ursus maritimus marinus: Russia, Beaufort Sea, Alaska, Bering Sea, Kamchatka, Kuril Island, Sea of Okhotsk, Japan (Ref. 1522).
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm Max length : 250 cm TL Männchen/unbestimmt; (Ref. 1394); 200 cm TL (female); max. veröff. Gewicht: 800.0 kg (Ref. 1394); max. veröff. Gewicht: 800.0 kg
Fur color: white, yellow, grey, or almost brown, depending on season and light conditions; black skin, including nose and lips; plantigrade; claws not retractable.
Generally associated with ice, but they have been swimming at sea many kilometers away from the nearest land. Feeds on ringed, bearded, harp and hooded seals, and rarely walruses and white whales; sometimes eat arctic cod and other forms of animal and vegetable matter (Ref. 1394). Generally associated with ice, but they have been swimming at sea many kilometers away from the nearest land. Feeds on ringed, bearded, harp and hooded seals, and rarely walruses and white whales; sometimes eat arctic cod (Ref. 1394), charr, sculpin, and plants (Ref. 81152). They display migration patterns and spend time on the ice for hunting, a positive energy state, and move to their terrestrial habitat, a negative energy state, when the ice melts. Earlier ice break-ups show earlier arrival of polar bears ashore (Ref. 93189).
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 Rote Liste Status
(Ref. 130435: Version 2025-2 (Global))
CITES Status (Ref. 108899)
Bedrohung für Menschen
Nutzung durch Menschen
Fischereien: kommerziell
FAO - Fischereien: Artbeschreibung; Publication: search | FishSource | Das Meer um uns herum
Tools
Mehr Information
PhysiologieSauerstoffverbrauch
MenschenbezogenBriefmarken, Münzen, Verschiedenes.
Internet Quellen
Schätzungen auf der Grundlage von Modellen
Widerstandsfähigkeit
(Ref. 69278): |
hoch, Verdopplung der Population dauert weniger als 15 Monate. (K=0.52-0.78; tm=4.1) |
Anfälligkeit der Fischerei
(Ref. 71543) |
High vulnerability (64 of 100). |
Preiskategorie
(Ref. 80766): |
Unknown. |
