Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

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

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

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: L_m 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

Main reference References | Coordinator | Collaborators

Tan, J.M.L. 1995. (Ref. 936)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 05 April 2018

CITES status (Ref. 108899)

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Threat to humans

Human uses

Fisheries: commercial
FAO - Fisheries: landings, species profile | FishSource | Sea Around Us

Tools

E-book | Field guide

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items

Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance

References
Mass conversion

Collaborators
Pictures

Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 2.3 - 5.6, mean 3.5 (based on 2741 cells).

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.2-0.37; tm=12).

Vulnerability (Ref. 71543): Very high vulnerability (84 of 100).

Price category (Ref. 80766): Unknown.

Stenella attenuata (Gray, 1846)