Euthynnus affinis (Cantor, 1849)
Kawakawa
Catalog of Fishes (gen., sp.) | ITIS | CoL
Classification
Actinopterygii | Perciformes | Scombridae | Scombrinae
Synonyms
Thynnus affinis, Euthunnus affinis affinis, Euthunnus alleteratus affinis,
Common names
Thonine orientale, Bacoreta oriental, Dwarf bonito,
Picture by Field, R.
Main reference
Collette, B.B. and C.E. Nauen. 1983. (Ref. 168)
Other references | Biblio | Coordinator : Collette, Bruce B. | Collaborators
Size / Weight / Age
Max length : 100.0 cm FL male/unsexed; (Ref. 168); common length : 60.0
cm FL male/unsexed; (Ref. 168); max. published weight: 14.0 kg (Ref. 30874)
Length at first maturity
Lm ?, range 40 - 65 cm
Environment
Pelagic-neritic; oceanodromous (Ref. 51243); marine; depth range 0 - 200
m (Ref. 54439)
Climate / Range
Tropical; 18°C - 29°C (Ref. 168); 35°N - 25°S, 40°E
- 137°W (Ref. 54439)
Distribution
Indo-West Pacific: in warm waters including oceanic islands and archipelagos.
A few stray specimens have been collected in the Eastern Central Pacific.
Highly migratory species, Annex I of the 1982 Convention on the Law of
the Sea (Ref. 26139).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal spines (total): 1114; Anal spines: 0; Anal soft rays: 13 - 14; Vertebrae:
39. Swim bladder absent. No trace of vertebral protuberances. Anterior
spines of first dorsal fin much higher than those mid-way. Interpelvic
process small and bifid. Body naked except for corselet and lateral line.
Posterior portion of the back with a pattern of broken oblique stripes.
Biology
Glossary (e.g. epibenthic)
Occurs in open waters but always remains close to the shoreline. The young
may enter bays and harbors. Forms multi-species schools by size with other
scombrid species comprising from 100 to over 5,000 individuals. A highly opportunistic
predator feeding indiscriminately on small fishes, especially on clupeoids
and atherinids; also on squids, crustaceans and zooplankton (Ref. 9684). Generally
marketed canned and frozen; also utilized dried, salted, smoked (Ref. 9684)
and fresh (Ref. 9987).
