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Polydactylus sexfilis (Valenciennes, 1831)

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

Teleostei > Carangaria/misc (Various families in series Carangaria) 鱸形目 (Various families in series Carangaria) > Polynemidae (Threadfins) 馬鮁科 (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).
More on author: Valenciennes.

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

海洋; 淡水; 半鹹淡水 礁區魚類; 深度上下限 1 - 50 m (Ref. 57343), usually 20 - 50 m (Ref. 9685). 熱帶; 34°N - 23°S, 50°E - 148°W (Ref. 57343)

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

Indo-Pacific: mainly around oceanic islands. Known from Mauritius, Seychelles, Kenya and many islands of the northern Indian Ocean; then from Indonesia north to the Ryukyu, Ogasawara and Yaeyama islands and east to the Hawaiian Islands, French Polynesia and Pitcairn. Has not been collected in Australia (Ref. 57343).
印度-太平洋: 模里西斯,塞錫爾群島, 肯亞與印度洋北部的許多島。 印尼向北經過菲律賓, 琉球群島到小笠原群島與八重山群島向東經過太平洋諸島到夏威夷群島, 與從密克羅尼西亞到玻利尼西亞與皮特凱恩島。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 61.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 4887); 最大體重: 3.2 kg (Ref. 4699)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 9; 背的軟條 (總數) : 13; 臀棘: 3; 臀鰭軟條: 11. Body uniformly golden silver; occasionally with several faint dark stripes along longitudinal scale rows above and below lateral line. Pectoral filaments 6 with tip of uppermost filament reaching to or slightly beyond level of posterior tip of upper part of pectoral fin (Ref. 41110).
身體均勻金銀色的; 偶然地有一些模糊的深色斑紋沿著縱向的鱗片列在側線上面與下面。 胸的絲狀突起 6 最上面的絲頂端延伸到或略超過胸鰭的上半部的後頂端的水平.(參考文獻 41110)

生物學特性     字彙 (例如 epibenthic)

This schooling species occurs along sandy and rocky shorelines and over sandy lagoon bottoms, often in zones of turbulence (Ref. 9685). Benthopelagic (Ref. 58302). Often encountered in river mouths or brackish mangrove estuaries. Feeds mainly on crustaceans (shrimps and crabs), polychaete worms, other benthic invertebrates; also on teleosts (Ref. 9685). A lunar spawning rhythm occurs close to shore (Ref. 9685). Sexual maturity in males occurs at 12 to 15 cm (Ref. 9685). Subsequently undergoes sex reversal passing through a hermaphroditic stage, and become female between 18 and 24 cm (Ref. 9685). The potential of this species for aquaculture has been studied (Ref. 9685).

這群游性種出現沿著沙與岩石的海岸線與砂質潟湖底部之上, 常見於狂暴的區域中.(參考文獻 9685) 時常在河口或半鹹淡水紅樹林河口見到了。 主要吃甲殼動物 (蝦與螃蟹) ,多毛類的蠕蟲,其他的底棲無脊椎動物; 也吃硬骨魚.(參考文獻 9685) 達到至少 40 公分標準長度。 (參考文獻 9685) 產生一個陰曆的產卵節律接近海岸.(參考文獻 9685) 在雄性的性成熟發生於 12 到 15 公分。 (參考文獻 9685) 他們後來進行性轉換經過一個雌雄同體的階段, 而且成為在 18 與 24 公分之間的雌性。 (參考文獻 9685) 水產業的這種的潛能已經被研究。 (參考文獻 9685)

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

印度-太平洋: 模里西斯,塞錫爾群島, 肯亞與印度洋北部的許多島。 印尼向北經過菲律賓, 琉球群島到小笠原群島與八重山群島向東經過太平洋諸島到夏威夷群島, 與從密克羅尼西亞到玻利尼西亞與皮特凱恩島。

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

Motomura, H., 2004. Threadfins of the world (Family Polynemidae). An annotated and illustrated catalogue of polynemid species known to date. FAO Spec. Cat. Fish. Purp. Rome: FAO. 3:117 p. (Ref. 57343)

IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)

  無危 (LC) ; Date assessed: 18 August 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

漁業: 商業性; 養殖: 實驗的; 游釣魚種: 是的; 水族館: 商業性
FAO - Aquaculture systems: 產生; ; Publication: search | FishSource | 周邊海洋

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Estimates based on models

Preferred temperature (Ref. 123201): 24.1 - 29, mean 27.9 °C (based on 1038 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.01035 - 0.03199), b=3.11 (2.96 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  3.4   ±0.49 se; based on food items.
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100).
價格種類 (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 38.5 [16.0, 64.6] mg/100g; Iron = 0.484 [0.247, 0.933] mg/100g; Protein = 19.8 [18.0, 21.6] %; Omega3 = 0.111 [0.072, 0.175] g/100g; Selenium = 37.4 [19.5, 80.0] μg/100g; VitaminA = 31.6 [8.9, 109.8] μg/100g; Zinc = 1.02 [0.68, 1.55] mg/100g (wet weight);