分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Cladistii >
Polypteriformes (Bichirs)
多鰭魚目 (Bichirs) >
Polypteridae (Bichirs)
多鰭魚科 (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335); ansorgii: Named after Dr. W.J. Ansorge (Ref. 43036).
Eponymy: Dr William John Ansorge (1850–1913) was an English explorer and collector who was active in Africa in the second half of the 19th century. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶
Africa: The species is described from the Corubal River in Guinea Bissau (Ref. 2835, 81263); and it has been reported recently from the Niger basin in Guinea and in lake Kainji and the Ogun River in Nigeria (Ref. 2835, 81263).
非洲: 描述了在幾內亞比索的從 Corbal 河 (Corubal) 而且最近在幾內亞與卡因基湖與奈及利亞的歐根河的接近 Kouroussa 的尼日河流域報告.(參考文獻 2835)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 28.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 81263)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 13 - 15; 背的軟條 (總數) : 0; 臀棘: 0; 臀鰭軟條: 12 - 14. Diagnosis: Polypterus ansorgii is distinguished from other species of the genus by its two jaws of equal length and its dorsal fin set forward, only separated from the head by 11 to 13 scales (Ref. 2835, 81263).
近圓柱形的身體.(參考文獻 42908) 相等長度的上頜與下頜.(參考文獻 2835) 前面的背鰭有 12-15個背部的離鰭了。 (參考文獻 2835, 參考文獻 42908, 參考文獻 51884) 胸鰭延伸到第一背鰭棘。 (參考文獻 3032) 硬鱗:(參考文獻 42904) 55-62個側線鱗片, 身體的周圍 42-46個鱗片,11-13 前背的鱗片.(參考文獻 2835, 參考文獻 3032, 參考文獻 42908) 成魚的側線鱗片在後緣上有凹槽。 (參考文獻 2756) 顏色在側面上對大的黑色斑塊感到黑綠色。 (參考文獻 3023)
Facultative air-breathing (Ref. 126274)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 描述了在幾內亞比索的從 Corbal 河 (Corubal) 而且最近在幾內亞與卡因基湖與奈及利亞的歐根河的接近 Kouroussa 的尼日河流域報告.(參考文獻 2835)
Gosse, J.P. and J. Daget, 2003. Polypteridae. p. 101-112. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81263)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 23 April 2020
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00197 - 0.01063), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.5 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): Low vulnerability (18 of 100).
