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Euthynnus affinis  (Cantor, 1849)

Kawakawa
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Euthynnus affinis
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Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Euthynnus: Greek, eu = good + Greek, thynnos = tunna (Ref. 45335).

Miljö / Klimat / Range Ekologi

; marina; havsvandrande (Ref. 51243); djupintervall 0 - 200 m (Ref. 54439).   Tropical; 18°C - 29°C (Ref. 168), preferred 28°C (Ref. 107945); 35°N - 38°S, 32°E - 137°W (Ref. 54439)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

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).

Length at first maturity / Size / Vikt / Age

Maturity: Lm ?, range 40 - 65 cm
Max length : 100.0 cm FL hane/ej könsbestämd; (Ref. 168); common length : 60.0 cm FL hane/ej könsbestämd; (Ref. 168); publicerad maxvikt: 14.0 kg (Ref. 30874)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 10 - 15; Mjukstrålar i ryggfenan (totalt): 11-15; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 11 - 15; Ryggkotor: 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.

Biologi     Ordlista (t.ex. 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).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator : Collette, Bruce B. | Medarbetare

Collette, B.B. and C.E. Nauen, 1983. FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 30911)




Human uses

Fiskeri: kommersiellt viktig; sportfisk: ja

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
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Näringsinnehåll
Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
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Könsmognad
Lek
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
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referenser
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