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Perciformes (Perch-likes) >
Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Euthynnus: Greek, eu = good + Greek, thynnos = tunna (Ref. 45335).
環境 / 気候 / 範囲
生態学
; 海; 海洋回遊性 (Ref. 51243); 深さの範囲 0 - 40 m (Ref. 5227). Tropical, preferred 28°C (Ref. 107945); 39°N - 16°S, 128°W - 77°W (Ref. 168)
Eastern Pacific: off San Simeon, California, USA southward to the Galapagos Islands and northern Peru. Two stray specimens collected in the Hawaiian Islands.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 84.0 cm FL オス/雌雄の選別がない; (Ref. 168); common length : 60.0 cm FL オス/雌雄の選別がない; (Ref. 9340); 最大公表体重: 9.1 kg (Ref. 168)
背面の脊椎 (合計): 10 - 15; 臀鰭: 11 - 12; 脊つい: 37. Anterior spines of first dorsal fin much higher than those mid-way, giving the fin a strongly concave outline. Interpelvic process small and bifid. Body naked except for corselet and lateral line. Swim bladder absent. A large rounded protuberances on 31st and 32nd vertebrae. Color is generally iridescent blue with black dorsal markings composed of 3 to 5 horizontal stripes. Also with variable black or dark gray spots above the pelvic fins. Occasionally with extensive longitudinal stripes of light gray on belly; some individuals have few or no belly markings.
Occurs rarely where surface temperatures fall below 23°C. Its larvae are more frequently encountered at temperatures above 26°C and are practically confined to waters within about 240 miles off the mainland. Inhabits near the surface of coastal waters and offshore waters (Ref. 11035). Form multi-species schools with Thunnus albacares and Katsuwonus pelamis. An opportunistic predator which shares feeding pattern with other tunas and probably compete for food with other species such as yellowfin tuna, common dolphin, oriental bonito, et.
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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)
CITES (Ref. 94142)
Not Evaluated
Human uses
水産業: 少数商業の; ゲームフィッシュ: はい
より多くの情報
参考文献水産養殖水産養殖の紹介緊張遺伝子の対立遺伝子頻度遺伝病気行列Mass conversion
協力者画像Stamps, Coins音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
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