Mammalia |
Cetartiodactyla |
Delphinidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
Tầng nổi; Ở đại duơng, biển (Tài liệu tham khảo 75906); Mức độ sâu 0 - 2652 m (Tài liệu tham khảo 116169). Tropical; 90°N - 90°S, 180°W - 180°E
Circumglobal. Climate: cosmopolitan.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ?, range 570 - 660 cm Max length : 980 cm TL con đực/không giới tính; (Tài liệu tham khảo 1394); 850 cm TL (female); Khối lượng cực đại được công bố: 10.0 t (Tài liệu tham khảo 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 (Refs. 122680, 130961). 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). Three ecotypes identified along California and Oregon: residents (piscivorous), transients (mammal-eating) and offshores (preference for shark and other large fishes). Bite marks indicate attacks from Isistius sp. (Ref. 130791).
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 A Field Guide to the Whales and Dolphins in the Philippines. Makati City: Bookmark. 125 p. (Tài liệu tham khảo 936)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2025-1)
CITES status (Tài liệu tham khảo 108899)
CMS (Tài liệu tham khảo 116361)
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
PhysiologyThành phần ô-xy
Human RelatedStamps, coins, misc.
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).
Fishing Vulnerability
Very high vulnerability (81 of 100).
Price category
Unknown.
