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Katsuwonus pelamis  (Linnaeus, 1758)

Skipjack tuna
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Katsuwonus pelamis
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分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

条鰭類 > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae

環境 / 気候 / 範囲 生態学

; 海; 海洋回遊性; 深さの範囲 0 - 260 m (Ref. 9340), usually 0 - ? m (Ref. 55287).   Tropical; 15°C - 30°C (Ref. 168); 63°N - 47°S, 180°W - 180°E

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Cosmopolitan in tropical and warm-temperate waters. Not found in the Black Sea. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 40.0, range 40 - 45 cm
Max length : 110 cm FL オス/雌雄の選別がない; (Ref. 89423); common length : 80.0 cm FL オス/雌雄の選別がない; (Ref. 168); 最大公表体重: 34.5 kg (Ref. 168); 最大記録サイズ: 12 年 (Ref. 168)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 14 - 16; 背鰭 (合計): 14-15; 肛門の骨 0; 臀鰭: 14 - 15; 脊つい: 41. Interpelvic process small and bifid. Body without scales except for the corselet and the lateral line. Swim bladder absent. The back is dark purplish blue, lower sides and belly silvery, with 4 to six very conspicuous longitudinal dark bands which in live specimens may appear as continuous lines of dark blotches.

生物学     用語集 (例 epibenthic)

Found in offshore waters; larvae restricted to waters with surface temperatures of 15°C to 30°C (Ref. 6390). Exhibit a strong tendency to school in surface waters with birds, drifting objects, sharks, whales and may show a characteristic behavior like jumping, feeding, foaming, etc. Feed on fishes, crustaceans, cephalopods and mollusks; cannibalism is common. Spawn throughout the year in the tropics, eggs released in several portions (Ref. 35388). Eggs and larvae are pelagic (Ref. 6769). Preyed upon by large pelagic fishes (Ref. 6885). Also taken by trolling on light tackle using plugs, spoons, feathers, or strip bait (Ref. 9684). Marketed fresh, frozen or canned (Ref. 9340); also dried-salted and smoked (Ref. 9987).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

In tropical waters, reproductively active female skipjack tuna spawn almost daily.

主な参考文献 Upload your references | 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. 115185)

CITES (Ref. 94142)

Not Evaluated

人間に対する脅威

  Reports of ciguatera poisoning (Ref. 4690)




Human uses

水産業: 高い商業の; ゲームフィッシュ: はい

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インターネットの情報源

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00952 - 0.01207), b=3.12 (3.09 - 3.15), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
栄養段階 (Ref. 69278):  4.4   ±0.5 se; Based on diet studies.
回復力 (Ref. 69278):  手段, 1.4年~4.4年の倍増期間の最小個体群 (K=0.3-0.5; tm=2-3; tmax=12; Fec=80,000).
Prior r = 0.82, 2 SD range = 0.36 - 1.84, log(r) = -0.2, SD log(r) = 0.41, Based on: 5 M, 50 K, 3 tgen, 2 tmax, 4 Fec records
弱み (Ref. 59153):  Moderate vulnerability (40 of 100) .
価格帯 (Ref. 80766):   High.