Mammalia |
Cetartiodactyla |
Delphinidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Pelagic; oceanodromous (Ref. 75906); depth range 0 - 2652 m (Ref. 116169). Tropical; 90°N - 90°S, 180°W - 180°E
Circumglobal. Climate: cosmopolitan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 570 - 660 cm Max length : 980 cm TL male/unsexed; (Ref. 1394); 850 cm TL (female); max. published weight: 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)
Threat to humans
Human uses
Fisheries: commercial
FAO - Fisheries: landings, species profile | FishSource | Sea Around Us
Tools
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 0.3 - 13.1, mean 3.1 (based on 13394 cells).
Resilience
Low, minimum population doubling time 4.5 - 14 years (K=0.1-0.17; tm=9.4).
Vulnerability
High to very high vulnerability (66 of 100).
Price category
Unknown.
