Common names from other countries
Classification / Names / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS
Environment: milieu / climate zone / depth range / distribution range
Ecology
Pelagic; oceanodromous (Ref. 75906); depth range 0 - 4330 m (Ref. 116169). Tropical; 90°N - 90°S, 180°W - 180°E
Atlantic Ocean and Indo-Pacific: Stenella longirostris longirostris: Around oceanic islands in the tropical Atlantic, Indian, Western and Central Pacific east to about 145°W. Tropical, subtropical.
Length at first maturity / Size / Weight / Age
Maturity: Lm 164.1, range 152 - 182 cm Max length : 240 cm TL male/unsexed; (Ref. 1394); 200 cm TL (female); max. published weight: 77.0 kg (Ref. 1394)
Spinner dolphins have various forms depending on their geographical locations. Commonly, these are small and slender animals that have a relatively long slender beak. It has a tripartite coloration which consists of a dark grey dorsal cape, lighter grey lateral field and a white or very light ventral field. A dark band runs from the eye to the flipper, bordered above by a thin line. It has a clearly discernible contrast of cape with the lateral field and a smooth curve on the ventral margin of cape over the eye. The ventral white field extends dorsal variably nearly to level of eye; margin speckled; genital and axillary areas confluent. It also has a high to medium contrast between flipper band and gular region wherein variable spots are visible. Its flippers are dark or speckled. In adult males the dorsal fin is falcate to triangular and has a small to medium protuberant ventral keel.
Dolphins are directly caught for use as shark-bait in Sta. Ana and Aparri, Philippines (Ref. 77119).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sexual maturity attained between 4 to 7 years (females, 165-170 cm) and 7 to 10 years (males, 160-180 cm). Promiscuous, with observable courtship display. Gestation period averages 10 months, produces only one calf. Born at 3-year intervals, calves are nursed for at least a year and weaned between 1 to 3 years (Ref. 80521).
Tan, J.M.L. 1995. (Ref. 936)
IUCN Red List Status (Ref. 130435: Version 2024-1)
CITES status (Ref. 108899)
Human uses
Fisheries: commercial
FAO - Fisheries: landings, species profile | FishSource | Sea Around Us
Tools
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 2.6 - 14.4, mean 4.8 (based on 3285 cells).
Resilience
High, minimum population doubling time less than 15 months (K=0.41-0.54; tm=5).
Vulnerability
High to very high vulnerability (71 of 100).
Price category
Unknown.
