Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Tầng nổi; Ở đại duơng, biển (Ref. 75906); Mức độ sâu 0 - 2652 m (Ref. 116169). Tropical; 90°N - 90°S, 180°W - 180°E
Circumglobal. Climate: cosmopolitan.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?, range 570 - 660 cm Max length : 980 cm TL con đực/không giới tính; (Ref. 1394); 850 cm TL (female); Khối lượng cực đại được công bố: 10.0 t (Ref. 1394)
Transient migration (Ref. 8689). Lives in matrilines throughout their lifetime (Ref. 97337). Commonly found in nearshore, cold temperate to subpolar waters (Refs. 1394, 936). Forms large social groups and strong social bonds. Feeds cooperatively (Ref. 122680). Feeds on sharks, large baleen whales (Ref. 122680), all oceanic cetaceans, pinniped, penguins, and other seabirds, leatherback turtles, squid and many types of fish (Refs. 1394, 936).
Polygamous (Ref. 8653). Sexually dimorphic; males are larger than females (Ref. 97315). Females have higher preference for non-pod males that arrive as part of a matriline than males that arrive alone. Multiple mating occurs based on testis size to body size ratios; females mate with more than one male during associations between pods (Ref. 97337). Calving is diffusely seasonal, with a peak in autumn for northeastern Pacific species (Ref. 97343).
Tan, J.M.L. 1995. (Ref. 936)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Human uses
Các nghề cá: Tính thương mại
FAO - Các nghề cá: landings, species profile | FishSource | Biển chung quanh ta
Các công cụ
Các nguồn internet
Estimates based on models
Preferred temperature
(Ref.
115969): 0.3 - 13.1, mean 3.1 (based on 13394 cells).
Thích nghi nhanh
thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (K=0.1-0.17; tm=9.4).
Vulnerability
High to very high vulnerability (66 of 100).
Price category
Unknown.