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Eumetopias jubatus (Schreber, 1776)
Steller's sea lion| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Eumetopias jubatus AquaMaps Data sources: GBIF OBIS |
![Image of Eumetopias jubatus (Steller\](/images/thumbnails/gif/Tn_Eujub_u0.gif "Image of Eumetopias jubatus (Steller\")
رده بندی / Names اسامي عام | مترادف | CoL | ITIS | WoRMS
Mammalia | Carnivora | Otariidae
Environment: milieu / climate zone / تغييرات عمق / distribution range بوم شناسي
موجوداتی که در اعماق زیر 200 متر زندگی و تغذیه می کنند. Subtropical; 90°N - 0°S, 180°W - 180°E
Distribution كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | معرفي
Pacific Ocean, Northeast Atlantic and the Arctic. Tropical to temperate.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ? range ? - ? cm Max length : 330 cm TL جنس نر / بدون خواص جنسي; (مرجع 1394); 250 cm TL (female); common length : 310 cm TL جنس نر / بدون خواص جنسي; (مرجع 80659); common length :240 cm TL (female); بيشينه وزن گزارش شده: 1.1 t (مرجع 80659); بيشينه وزن گزارش شده: 1.1 t
توصيف مختصر ريخت شناسي
Sexually dimorphic. Coloration when dry is pale yellow to light tan with dark brown undersides and near their flippers. When wet, color is grayish white. Pelage is short coarse hairs. Mature males develop a prominent mane on the necks and chests, with heads that are more robust with a flatter snout than females.
Inhabits coastal and immediate offshore waters (Ref. 1522). Preyed upon by great white sharks (Ref. 32140). Coastal and immediate offshore waters (Ref. 1522). Non-migratory but may disperse considerably from breeding sites. Appears to feed along the continental shelf and break (Ref. 80660). Found from the coast to the outer continental shelf; they frequent deep oceanic waters in some parts of the range. Feeds on many varieties of fish and squid, prefers bottom species; feeding occurs at night (Ref. 1394).
Life cycle and mating behavior بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
Only sexually mature Steller sea lions return to rookeries, except for few dependent young with their mothers. Gestation results only one pup which is nursed for under a year up to 3 years. Mothers stay on shore with their newborn for about a week before leaving for regular feeding trips. Copulation usually occur prior to first feeding trip. Longevity lasts about 14 years for males and 22 years for females, with a generation time of 10 years.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Rice, D.W. 1998 Marine Mammals of the World Systematics and Distribution. Special Publication number 4: The Society for Marine Mammalogy. 231p. (مرجع 1522)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-1)
نزديک به تهديد شدن (NT) ; Date assessed: 04 February 2016
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
CMS (مرجع 116361)
Not Evaluated
خطر برای انسان ها
استفاده انسانی
ماهي گيري – شيلات: تجاري
FAO - ماهي گيري – شيلات: landings, نمايه گونه | FishSource | Sea Around Us
ابزارها
اطلاعات بيشتر
Trophic Ecology
بوم شناسي
Population dynamics
Life cycle
Distribution
Physiology
Oxygen consumption
منابع اينترنتي
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(ماهي گيري – شيلات: نمايه گونه; publication : search) | Fishipedia | GenBank (ژنوم, نوکلئوتيد) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (برو, جستجو) | Zoological Record
Estimates based on models
Preferred temperature
(Ref. 115969): 1.6 - 13.5, mean 5.8 (based on 1576 cells).
جهندگی
(Ref. 69278):
متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (K=0.17-0.54).
طبقه قيمت
(مرجع 80766):
Unknown.