Trichiurus lepturus, Largehead hairtail : fisheries, gamefish
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Trichiurus lepturus Linnaeus, 1758

Largehead hairtail
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Trichiurus lepturus   AquaMaps   Data sources: GBIF OBIS
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Trichiurus lepturus
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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Trichiuridae (Cutlassfishes) > Trichiurinae
Etymology: Trichiurus: Greek, thrix = hair + Greek, oura = tail (Ref. 45335);  lepturus: Specific name from Greek 'lepturus', for its thin or slender tail..
More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 汽水性の 底生の漂泳性; 両側回遊性 (Ref. 51243); 深さの範囲 0 - 589 m (Ref. 58018), usually 100 - 350 m (Ref. 35388). Subtropical; 49°N - 54°S, 114°W - 180°E (Ref. 54931)

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Circumtropical and warm temperate seas; including Gulf of Mexico, Caribbean Sea, Mediterranean Sea, Sea of Marmara, Red Sea, Persian Gulf.

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 50.6, range 30 - 99 cm
Max length : 234 cm TL オス/雌雄の選別がない; (Ref. 26340); common length : 100.0 cm TL オス/雌雄の選別がない; (Ref. 26999); 最大公表体重: 5.0 kg (Ref. )

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 3; 背鰭 (合計): 130-135; 臀鰭: 100 - 105. Body extremely elongate, compressed and tapering to a point. Mouth large with a dermal process at the tip of each jaw. Dorsal fin relatively high; anal fin reduced to minute spinules usually embedded in the skin or slightly breaking through; anterior margin of pectoral fin spine not serrated. Pelvic and caudal fins absent. Lateral line beginning at the upper margin of the gill cover, running oblique to behind the tip of the pectoral fins, then straight close to the ventral contour. Fresh specimens steely blue with silvery reflections, becoming uniformly silvery gray sometime after death (Ref. 6181).

生物学     用語集 (例 epibenthic)

Generally over muddy bottoms of shallow coastal waters (Ref. 9351). Often enter estuaries (Ref. 9351). Juveniles feed mostly on euphausiids, small pelagic planktonic crustaceans and small fishes; adults feed mainly on fishes and occasionally on squids and crustaceans (Ref. 6181). Adults and juveniles have opposing complementary vertical diurnal feeding migration. Large adults usually feed near the surface during the daytime and migrate to the bottom at night. Juveniles and small adults form schools 100 m above the bottom during the daytime and form loose feeding aggregations at night near the surface. Pelagic eggs (Ref. 35388) and larvae (Ref. 6768). Max weight of 1.5 kg given in Ref. 28023 seems too low. The current angling world record was caught in Rio de Janeiro's Guanabara Bay and weighed 3.69 kg. Commercial fisherman have caught fish of up to 5 kg (Capt. Eduardo Baumeier, pers. Comm., 2001). Marketed salted or dried and also frozen (Ref. 9351). Excellent taste when fried or grilled; also for sashimi when fresh.

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

主な参考文献 Upload your references | 参考文献 | コーディネーター : Parin, Nikolay V. | 協力者

Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 29 January 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 高い商業の; ゲームフィッシュ: はい
FAO - 水産業: landings, 種の外形; Publication: search | FIRMS - Stock assessments | FishSource | 私達の周りの海

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参考文献
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シガテラ(食中毒の名前)
速度
泳ぐ 型式
カマ
Otoliths

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インターネットの情報源

Estimates based on models

Preferred temperature (Ref. 123201): 10.1 - 23.2, mean 15.2 °C (based on 1178 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00035 (0.00029 - 0.00042), b=3.15 (3.10 - 3.20), in cm total length, based on LWR estimates for this species (Ref. 93245).
栄養段階 (Ref. 69278):  4.4   ±0.4 se; based on diet studies.
Generation time: 3.8 (1.7 - 7.0) years. Estimated as median ln(3)/K based on 17 growth studies.
回復力 (Ref. 120179):  手段, 1.4年~4.4年の倍増期間の最小個体群 (K=0.25-0.29; tm=2-3.7; tmax=15; Fec=21,672).
Prior r = 0.80, 95% CL = 0.53 - 1.20, Based on 15 stock assessments.
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (51 of 100).
Climate Vulnerability (Ref. 125649):  High vulnerability (62 of 100).
価格帯 (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 100 [30, 212] mg/100g; Iron = 1.23 [0.36, 2.72] mg/100g; Protein = 19.4 [17.7, 21.0] %; Omega3 = 0.256 [0.133, 0.574] g/100g; Selenium = 173 [63, 488] μg/100g; VitaminA = 3.29 [0.71, 21.47] μg/100g; Zinc = 0.855 [0.444, 1.405] mg/100g (wet weight); based on nutrient studies.