分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 河川洄游 (Ref. 51243). 熱帶
Africa: Nile basin (Ref. 2915) including the Ghazal and Jebel, White Nile, Blue Nile and Lake Nubia (Ref. 28714). Also in the Comoé (subspecies P. b. comoensis), Chad, Volta (Ref. 2915, 81274), Cross and Niger (Ref. 81274) including the Bénoué (Ref. 2915, 81274).
非洲: 尼羅河流域, 也從 Benoue ，查德與佛塔河.(參考文獻 2915)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 11.0 range ? - ? cm
Max length : 20.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 31256); 最大体重: 40.00 g (Ref. 3799)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 25 - 35; 臀棘: 0; 臀鳍软条: 31 - 38. Diagnosis: dorsal fin between one half and twice the anal fin length; mouth inferior situated below the eyes (Ref. 28714). Body height > 25% of SL (Ref. 28714), 2.6-3.2 times in SL (Ref. 2915, 81274). Anal fin base 3.1-3.4 times in SL; caudal peduncle height 16.8-18.7 times in SL; eye diameter 3.5-4.5 times in head length; uniform silvery color (Ref. 2915, 81274). Upper jaw with 13-19, lower jaw with 22-29 teeth; subspecies P. b. bane has 29-34 rays in dorsal fin and 31-38 in anal while P. b. comoensis has a lower average number of rays, 25-30 in dorsal and 32-36 in anal fin; scale counts: 40-44 in a longitudinal line and 12 around caudal peduncle; ratio standard length/caudal-peduncle depth in P. b. comoensis: 17.0-18.0 (Ref. 81274).
Coloration: uniform silvery (Ref. 2915, 81274).
体高 2.6-3.2 x SL, 臀鳍基底 3.1-3.4 x SL, 尾柄高度 16.8-18.7 x SL。 眼直径 3.5-4.5个 x 头长。 全银色。
Inhabits open water and vegetated areas of lakes, lagoons and irrigation canals; females grow larger and are more frequently caught than males (Sudan); chiefly insectivorous, feeding on the bottom and in vegetation (Ref. 28714). Affinities: P. ansorgii, differ only by the small eyes, the thick caudal peduncle, numerous teeth on lower jaw and the uniform silvery color (P. ansorgii has a spot on the dorsal fin).
栖息于开放水域与湖，泻湖与灌溉管的有植物生长的区域。 雌性生长大而且更时常超过雄性被捕捉。 主要食虫, 吃底部与在植物.(参考文献 28714) 分类相关: P. ansorgii, 不同只有藉由小的眼，厚的尾柄, 很多的牙齿在下颌与均匀的银色颜色.( P. ansorgii 在背鳍上有一个斑点)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
非洲: 尼羅河流域, 也從 Benoue ，查德與佛塔河.(參考文獻 2915)
Gosse, J.-P., 1984. Mormyridae. p. 63-122. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3203)
人类利用
渔业: ; 水族馆: 商业性
工具
特别资料
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网络资源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00772 - 0.02833), b=2.86 (2.70 - 3.02), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.40 se; based on food items.
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 (14 of 100).
