Mammalia |
Cetartiodactyla |
Delphinidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Pelagic; oceanodromous (Ref. 75906); depth range 0 - 5300 m (Ref. 116169). Tropical; 22°C - ? (Ref. 75906); 90°N - 90°S, 180°W - 180°E
Atlantic Ocean and Indo-Pacific: Stenella attenuata graffmani: Gulf of California and Colombia; Stenella attenuata subspecies A: Hawaii; Stenella attenuata subspecies B: Baja California Sur, Colombia. Tropical to temperate.
Length at first maturity / Size / Weight / Age
Maturity: Lm 182.0  range ? - ? cm Max length : 260 cm TL male/unsexed; (Ref. 1394); 240 cm TL (female); max. published weight: 120.0 kg (Ref. 1394)
Major threats to this species is incidental catches specifically by tuna fishermen in the eastern Pacific, and as sustainable by-catch with the use of gillnets in the Pacific and northern Indian Ocean (Ref. 85211). Spends the majority of their day nearshore, often between 90 to 300 m (Ref. 122680 but they also frequent oceanic waters (Ref. 801). They move further offshore at night into deeper waters to search for prey (Ref. 122680). Feeds largely on epipelagic fish and squid (Ref. 1394). It associates with parasites such as nematodes, cestodes, trematodes and acanthocephalans and commensals that includes cyamids amphipod, and barnacles (Ref. 85211). Social groups are formed by a range of a few individuals to thousands. It is composed of cow-calf pairs, adults and juveniles and they are grouped together or separately by juveniles or breeding groups. Their school size varies within the day (Ref. 85211).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tan, J.M.L. 1995. (Ref. 936)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Threat to humans
Human uses
Fisheries: commercial
FAO - Fisheries: landings, species profile | FishSource | Sea Around Us
Tools
More information
Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 2.3 - 5.6, mean 3.5 (based on 2741 cells).
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.2-0.37; tm=12).
Vulnerability
Very high vulnerability (77 of 100).
Price category
Unknown.