Mammalia |
Carnivora |
Otariidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
Tầng đáy biển sâu. Subtropical; 90°N - 0°S, 180°W - 180°E
Pacific Ocean, Northeast Atlantic and the Arctic. Tropical to temperate.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ? range ? - ? cm Max length : 330 cm TL con đực/không giới tính; (Tài liệu tham khảo 1394); 250 cm TL (female); common length : 310 cm TL con đực/không giới tính; (Tài liệu tham khảo 80659); common length :240 cm TL (female); Khối lượng cực đại được công bố: 1.1 t (Tài liệu tham khảo 80659); Khối lượng cực đại được công bố: 1.1 t
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
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | 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.
Rice, D.W. 1998 Marine Mammals of the World Systematics and Distribution. Special Publication number 4: The Society for Marine Mammalogy. 231p. (Tài liệu tham khảo 1522)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2025-1)
CITES status (Tài liệu tham khảo 108899)
Not Evaluated
CMS (Tài liệu tham khảo 116361)
Not Evaluated
Threat to humans
Human uses
Các nghề cá: Tính thương mại
FAO - Các nghề cá: landings, species profile | FishSource | Biển chung quanh ta
Các công cụ
Thêm thông tin
Life cycleSự tái sinh sảnChín muồi sinh dụcSự sinh sảnĐẻ trứngEggsEgg developmentLarvae PhysiologyThành phần ô-xy
Human RelatedStamps, coins, misc.
Các nguồn internet
Estimates based on models
Preferred temperature
(Ref.
115969): 1.6 - 13.5, mean 5.8 (based on 1576 cells).
Thích nghi nhanh
Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.17-0.54).
Fishing Vulnerability
High to very high vulnerability (72 of 100).
Price category
Unknown.
![Image of Eumetopias jubatus (Steller\](/images/thumbnails/gif/Tn_Eujub_u0.gif "Image of Eumetopias jubatus (Steller\")