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Tetrapturus georgii Lowe, 1841

Roundscale spearfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Tetrapturus georgii   AquaMaps   Data sources: GBIF OBIS
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Image of Tetrapturus georgii (Roundscale spearfish)
Tetrapturus georgii
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Carangiformes (Jacks) 鱸形目 (Jacks) > Istiophoridae (Billfishes) 旗魚科 (Billfishes)
Etymology: Tetrapturus: Greek, tetra = four + Greek, pteron, fin, wing (Ref. 45335).
More on author: Lowe.

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

海洋; 海洋洄游的 (Ref. 51243); 深度上下限 0 - 200 m (Ref. 43). 亞熱帶的; 42°N - 29°S, 98°W - 18°E (Ref. 43)

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Eastern Atlantic and Mediterranean Sea: Positively known only from Madeira, Sicily (Italy), Strait of Gibraltar, and the adjacent Atlantic Ocean off southern Portugal. Can be expected to range widely in the eastern and perhaps central North Atlantic. Central and eastern Atlantic records from Japanese longliner's data need clarification. Highly migratory species.
東大西洋與地中海: 肯定地已知只來自馬得拉群島,西西里島 (義大利) ,直布羅陀海峽了, 與毗連的大西洋外海的葡萄牙南部。 能被預期出現廣泛地在東方與也許中央的北大西洋中排列。 東大西洋中部來自日本延繩釣的資料需要澄清的紀錄。 高度遷移的種,1982年海事法會議的附件一.(參考文獻 26139)

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 184 cm FL 雄魚/尚未辨別雌雄; (Ref. 43); 181.0 cm FL (female); 最大體重: 21.5 kg (Ref. 43); 最大體重: 21.5 kg

生物學特性     字彙 (例如 epibenthic)

Further study is strongly needed to clarify the validity of this species. Probably oceanic. Length has been transferred from 'Body length' to FL (* 0.15).

更高深的研究強烈地被需要以澄清這種的有效性。 可能大洋性。 長度已經在從 ' 體長' 到 FL 被轉移。 (*0.15)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

東大西洋與地中海: 肯定地已知只來自馬得拉群島,西西里島 (義大利) ,直布羅陀海峽了, 與毗連的大西洋外海的葡萄牙南部。 能被預期出現廣泛地在東方與也許中央的北大西洋中排列。 東大西洋中部來自日本延繩釣的資料需要澄清的紀錄。 高度遷移的種,1982年海事法會議的附件一.(參考文獻 26139)

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Nakamura, I., 1985. FAO species catalogue. Vol. 5. Billfishes of the world. An annotated and illustrated catalogue of marlins, sailfishes, spearfishes and swordfishes known to date. FAO Fish. Synop. 125(5):65p. Rome: FAO. (Ref. 43)

IUCN 瀕危狀態 (Ref. 130435)

  資料不足 (DD) ; Date assessed: 15 November 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 14.3 - 19.1, mean 17.1 °C (based on 37 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5630   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00193 - 0.01034), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  4.3   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).