Mammalia |
Carnivora |
Phocidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
موجوداتی که در اعماق زیر 200 متر زندگی و تغذیه می کنند; تغييرات عمق 0 - 6000 m (مرجع 356). Boreal; 90°N - 0°S, 97°W - 180°E
Atlantic Ocean and the Arctic: North Atlantic Ocean, Arctic Ocean, Baffin Island, Magdalen Island, Russia, Canada (Ref. 1394). Pagophilus groenlandicus groenlandicus: Newfoundland, Jan Mayen (Norway), Baffin Bay, Greenland Sea, Nova Scotia, Greenland, Iceland; and vagrants in Virginia, Scotland, Germany, France; Pagophilus groenlandicus oceanicus: Barents Sea, Russia, White Sea (Ref. 1522).
Length at first maturity / Size / Weight / سن
بلوغ: Lm ?  range ? - ? cm Max length : 190 cm TL جنس نر / بدون خواص جنسي; (مرجع 1394); 180 cm TL (female); بيشينه وزن گزارش شده: 135.0 kg (مرجع 1394); بيشينه وزن گزارش شده: 135.0 kg
Live chiefly in pack ice, but can be found away from it in summer. Feeds on a variety of crustaceans and open-water fishes during migration, and switch to several varieties of bottom dwelling fishes in summer on the northern grounds (Ref. 1394). Live chiefly in pack ice, but can be found away from it in summer (Ref. 1394). Adults are highly gregarious; young seals tend to be solitary. Typically forms aggregations when feeding (Ref. 117964). Feeds on a variety of crustaceans and open-water fishes during migration, and switch to several varieties of bottom dwelling fishes in summer on the northern grounds (Ref. 1394).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Jefferson, T.A., S. Leatherwood and M.A. Webber. 1993. (مرجع 1394)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2024-2)
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
استفاده انسانی
ماهي گيري – شيلات: تجاري
FAO - ماهي گيري – شيلات: landings, نمايه گونه | FIRMS (Stock assessments) | FishSource | Sea Around Us
ابزارها
اطلاعات بيشتر
Life cycleتولید مثل
بلوغ
Fecundity
تخم ریزی
Eggs
نمو تخم
Larvae
پويايي لاروي
Human RelatedAquaculture profiles
Stamps, coins, misc.
منابع اينترنتي
Estimates based on models
Preferred temperature
(Ref.
115969): -0.9 - 4.1, mean 0.6 (based on 2101 cells).
آسيب پذيری
High to very high vulnerability (71 of 100).
طبقه قيمت
Unknown.