個人による観察記録の追加 Fish Watcher
| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Thunnus obesus AquaMaps Data sources: GBIF OBIS |
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Thunnus: Greek, thynnos = tunna (Ref. 45335).
More on author: Lowe.
Etymology: Thunnus: Greek, thynnos = tunna (Ref. 45335).
More on author: Lowe.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
海 pelagic-oceanic; 海洋回遊性 (Ref. 71039); 深さの範囲 0 - 1500 m (Ref. 117020), usually 0 - 500 m (Ref. 117020). Subtropical; 13°C - 29°C (Ref. 168); 52°N - 48°S, 180°W - 180°E
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Atlantic, Indian and Pacific: in tropical and subtropical waters. Absent in the Mediterranean. Highly migratory species.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 112.5, range 100 - 125 cm
Max length : 250 cm TL オス/雌雄の選別がない; (Ref. 27000); common length : 180 cm FL オス/雌雄の選別がない; (Ref. 168); 最大公表体重: 210.0 kg (Ref. 9987); 最大記録サイズ: 17 年 (Ref. 137697)
Max length : 250 cm TL オス/雌雄の選別がない; (Ref. 27000); common length : 180 cm FL オス/雌雄の選別がない; (Ref. 168); 最大公表体重: 210.0 kg (Ref. 9987); 最大記録サイズ: 17 年 (Ref. 137697)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 13 - 14; 背鰭 (合計) : 14 - 15; 肛門の骨: 0; 臀鰭: 14; 脊つい: 39. This large species is distinguished by the following characters: robust, fusiform body, slightly compressed from side to side; total gill rakers on first gill arch 23-31; dorsal fins separated only by a narrow interspace, the second followed by 8-10 finlets; anal fin followed by 7-10 finlets; pectoral fins moderately long (22 to 31% of fork length) in large specimens (over 110 cm FL), but very long (as long as in Thunnus alalunga) in smaller specimens; 2 flaps (interpelvic process) between pelvic fins; very small scales on body; corselet of larger and thicker scales developed, but not very distinct; caudal peduncle very slender, with a strong lateral keel between 2 smaller keels; ventral surface of liver striated; swimbladder present. Colour of back metallic dark blue, lower sides and belly whitish; a lateral iridescent blue band runs along sides in live specimens; first dorsal fin deep yellow, second dorsal and anal fins light yellow, finlets bright yellow edged with black (Ref. 9684).
Body shape (shape guide): fusiform / normal; Cross section: oval.
Body shape (shape guide): fusiform / normal; Cross section: oval.
Occur in areas where water temperatures range from 13°-29°C, but the optimum is between 17° and 22°C. Variation in occurrence is closely related to seasonal and climatic changes in surface temperature and thermocline. Juveniles and small adults school at the surface in mono-species groups or mixed with other tunas, may be associated with floating objects. Adults stay in deeper waters (Ref. 5377). Eggs and larvae are pelagic (Ref. 6390). Feed on a wide variety of fishes, cephalopods and crustaceans during the day and at night (Ref. 9340). Meat is highly prized and processed into sashimi in Japan. Marketed mainly canned or frozen (Ref. 9684), but also sold fresh (Ref. 9340).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Are multiple spawners that may spawn every 1 or 2 days over several months (Ref. 30330). They spawn over periods of the full moon (Ref. 6390). Spawn throughout the year in tropical waters (Ref. 6390).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター : Collette, Bruce B. | 協力者
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のレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
脆弱 (VU) (A2bd); Date assessed: 15 January 2021
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 高い商業の; ゲームフィッシュ: はい
FAO - 水産業: 着陸, 種の外形; Publication: search | FIRMS - Stock assessments | FishSource | 私達の周りの海
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モデルに基づく推定値
好ましい温度 (参照 123201): 16.8 - 28.6, mean 26.6 °C (based on 3638 cells).
系統多様性指数 (参照 82804): PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01318 (0.01043 - 0.01666), b=3.03 (2.99 - 3.07), in cm total length, based on LWR estimates for this species (Ref. 93245).
栄養段階 (参照 69278): 4.5 ±0.0 se; based on diet studies.
Generation time: 6.6 (4.4 - 10.4) years. Estimated as median ln(3)/K based on 12 growth studies.
回復力 (参照 120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (K=0.11-0.23; tm=3; tmax=11; Fec=2 million).
Prior r = 0.52, 95% CL = 0.34 - 0.77, Based on 10 full stock assessments.
栄養素 (Ref. 124155): Calcium = 22.1 [12.0, 42.2] mg/100g; Iron = 2.65 [1.06, 6.93] mg/100g; Protein = 24 [23, 25] %; Omega3 = 0.453 [0.273, 0.754] g/100g; Selenium = 54.7 [17.4, 171.5] μg/100g; VitaminA = 19.6 [2.7, 180.1] μg/100g; Zinc = 0.278 [0.153, 0.561] mg/100g (wet weight);