Common names from other countries
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Cladistii >
Polypteriformes (Bichirs) >
Polypteridae (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335); ansorgii: Named after Dr. W.J. Ansorge (Ref. 43036).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 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 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 28.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 81263)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 13 - 15; 背的软条 (总数) : 0; 臀棘: 0; 臀鳍软条: 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).
近圆柱形的身体.(参考文献 42908) 相等长度的上颌与下颌.(参考文献 2835) 前面的背鳍有 12-15个背部的离鳍了。 (参考文献 2835, 参考文献 42908, 参考文献 51884) 胸鳍延伸到第一背鳍棘。 (参考文献 3032) 硬鳞:(参考文献 42904) 55-62个侧线鳞片, 身体的周围 42-46个鳞片,11-13 前背的鳞片.(参考文献 2835, 参考文献 3032, 参考文献 42908) 成鱼的侧线鳞片在后缘上有凹槽。 (参考文献 2756) 颜色在侧面上对大的黑色斑块感到黑绿色。 (参考文献 3023)
Facultative air-breathing (Ref. 126274)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
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)
CITES (Ref. 128078)
Not Evaluated
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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 (0.00195 - 0.01073), b=3.05 (2.85 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (18 of 100).
