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Auxis thazard  (Lacepède, 1800)

Frigate tuna
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Auxis thazard
Picture by Randall, J.E.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 輻鰭魚綱 (條鰭魚) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Auxis: Greek, auxis = a variety of tunna (Ref. 45335).

環境 / 氣候 / 範圍 生態學

; 海洋; 海洋洄游的 (Ref. 51243); 深度上下限 50 - ? m (Ref. 9340).    27°C - 28°C, preferred 27°C (Ref. 107945); 61°N - 51°S, 180°W - 180°E

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Atlantic, Indian and Pacific (Western Central). Eastern Pacific population recognized as subspecies Auxis thazard brachydorax (Ref. 32349). Many authors have used the name Auxis thazard as including Auxis rochei in the belief that there was only a single worldwide species of Auxis. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 30.0, range 29 - ? cm
Max length : 65.0 cm FL 雄魚/尚未辨別雌雄; (Ref. 29114); common length : 60.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 47377); 最大體重: 1.7 kg (Ref. 40637); 最大年齡: 5 年 (Ref. 29114)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 10 - 12; 背的軟條 (總數): 10-13; 臀棘 0; 臀鰭軟條: 10 - 14. Back bluish, turning to deep purple or almost black on the head. A pattern of 15 or more narrow, oblique to nearly horizontal, dark wavy lines in scaleless area above lateral line. Belly white. Pectoral and pelvic fins purple, their inner sides black. Body robust, elongate and rounded. Teeth small and conical, in a single series. Pectoral fins short, but reaching past vertical line from anterior margin of scaleless area above corselet. A large single-pointed flap (interpelvic process) between pelvic fins. Body naked except for the corselet, which is well developed and narrow in its posterior part (no more than 5 scales wide under second dorsal-fin origin). A strong central keel on each side of caudal-fin base between 2 smaller keels (Ref 9684).

生物學特性     字彙 (例如 epibenthic)

Epipelagic in neritic and oceanic waters (Ref. 9340). Feeds on small fish, squids, planktonic crustaceans (megalops), and stomatopod larvae (Ref. 5213). Because of their abundance, they are considered an important element of the food web, particularly as forage for other species of commercial interest. Preyed upon by larger fishes, including other tunas (Ref. 9987). Marketed fresh and frozen (Ref. 9340); also utilized dried or salted, smoked and canned (Ref. 9987).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

In correlation with temperature and other environmental changes, the spawning season varies with areas, but in some places it may even extend throughout the year.

主要參考資料 Upload your references | 參考文獻 | 合作者 : Collette, Bruce B. | 合作者

Collette, B.B. and C.R. Aadland, 1996. Revision of the frigate tunas (Scombridae, Auxis), with descriptions of two new subspecies from the eastern Pacific. Fish. Bull. 94(3):423-441. (Ref. 32349)

IUCN 瀕危狀態 (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

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人類使用

漁業: 高經濟性; 游釣魚種: 是的
FAO(漁業: 產生, 魚種描繪; publication : search) | FIRMS (Stock assessments) | FisheriesWiki | 周邊海洋

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