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Polydactylus quadrifilis (Cuvier, 1829)

Giant African 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 quadrifilis   AquaMaps   Data sources: GBIF OBIS
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Image of Polydactylus quadrifilis (Giant African threadfin)
Polydactylus quadrifilis
Picture by Klimpel, S.

Congo (Brazzaville) country information

Common names: Nvouka
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Also Ref. 57343, 81658.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Motomura, H., 2004
National Database:

Common names from other countries

Gros capitaine, Barbudo gigante africano, Threadfin, ... more

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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: Cuvier.

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

海洋; 淡水; 半鹹淡水 居於水底的; 深度上下限 15 - 55 m (Ref. 10799).   熱帶; 22°N - 5°S, 26°W - 13°E (Ref. 57343)

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

Eastern Atlantic: Senegal to Angola (Ref. 57402). Also reported from Mauritania (Ref. 55783).
東大西洋: 塞內加爾到剛果。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 200 cm TL 雄魚/尚未辨別雌雄; (Ref. 57402); common length : 150 cm TL 雄魚/尚未辨別雌雄; (Ref. 3659); 最大體重: 75.0 kg (Ref. 7386)

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) : 12 - 13; 臀棘: 3; 臀鰭軟條: 11 - 12. Diagnosis: pectoral fin with 4 threadlike filaments (Ref. 57402, 81658). Pectoral fin inserted very low on body, generally somewhat longer than upper part of fin (Ref. 57402).

生物學特性     字彙 (例如 epibenthic)

Occurs in shallow coastal waters, over sandy and muddy bottoms, sometimes in brackish habitats (Ref. 57343, 81658). Enters estuaries (Ref. 57402), occasionally caught in fresh water (Ref. 57402, 81658). Very large specimens are only found in marine waters (Ref. 81658). Feeds on crustaceans and fishes (Ref. 10799, 81658). Flesh fairly tasteful (Ref. 57402).

出現於淺水域, 在半鹹淡的棲息地 (河口與潟湖) 在泥沙底上面.(參考文獻 4340) 吃甲殼動物和魚類。 (參考文獻 10799)

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

東大西洋: 塞內加爾到剛果。

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)

  無危 (LC) ; Date assessed: 15 July 2014

CITES (Ref. 128078)

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; 游釣魚種: 是的
FAO(漁業: 產生; publication : search) | FishSource | 周邊海洋

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參考文獻

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Estimates based on models

Preferred temperature (Ref. 115969): 22.3 - 28, mean 26 (based on 48 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00510 - 0.00855), b=3.09 (3.03 - 3.15), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
營養階層 (Ref. 69278):  4.0   ±0.66 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 (K=0.34-0.41; assuming tm=3-4).
Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 3 data-limited stock assessments.
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (87 of 100).
價格種類 (Ref. 80766):   High.