Found in lakes, swamps and rivers (Ref. 31256). Avoids salt water (Ref. 31439). Spends nearly the whole of the daylight hours in crevices of rocks and is therefor seldom seen (Ref. 51850). Lives and feeds on or near the bottom (Ref. 3034). Adults exclusively piscivorous (Ref. 31256). Preys on small fish, particularly Alestes spp. (Ref. 13851), or Chrysichthys auratus as in Lake Kainji (Ref. 3034), but also feeds on insects, crustaceans and molluscs (some debris and vegetable matter may also be ingested) (Ref. 28714). Efficiency of catching prey catfish is maximised by face to face attack, avoiding damage by dorsal and pectoral spines of the prey (Ref. 33614). There is some indication that the species comes to shallower water to breed (Ref. 43507). Spawning season extends from April to July (Ref. 51850). Parents build and guard the nest, which is like a flat disc with a central hole where the eggs are dropped; size of the nest and the central hole depend on the fish size (Ref. 51638). Males become up to 7 years old, females 8 years (Ref. 51644). Mean sizes and weight of males are less than those of females from the same age (Ref. 51644, 51645). An important food fish. Flesh is good eating and of economic importance (Ref. 36900), commonly sold as food (Ref. 43521). Reputed to reach 100,000 g.
发现于湖，沼泽与河了。 (参考文献 31256) 避开咸水。 (参考文献 31439) 几乎度过岩石的裂隙的白天的全部并且是因之少见的.(参考文献 51850) 生命并且吃或在底部的附近.(参考文献 3034) 成鱼专门以鱼为食.(参考文献 31256) 捕食小鱼, 特别地 Alestes spp。 (参考文献 13851), 或 Chrysichthys auratus 当在 Kainji湖中;(参考文献 3034) 也吃昆虫，甲壳动物，软件动物，植物。 (参考文献 28714) 捕捉猎物鲶鱼的效率被面对面攻击最大值, 避开损害被背部的与猎物的胸棘.(参考文献 33614) 此鱼种来到较浅的水域繁殖的有一些指证.(参考文献 43507) 产卵季节延伸从四月到七月。 (参考文献 51850) 亲鱼建立并且保卫巢, 是类似一平坦的体盘有一个中央的洞卵被降低哪里。 (参考文献 51638) 巢的大小与中央的洞仰赖鱼大小。 (参考文献 51638) 雄性变成达到 7 岁,8 年的雌性.(参考文献 51644) 平均的大小与雄性的重量是少于雌性从的相同年龄。 (参考文献 51644, 参考文献 51645) 一个重要的食用鱼。 肉是好的吃与经济重要性 (参考文献 36900), 通常卖作了食物.(参考文献 43521) 相传达到 100,000 g 。
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00766 - 0.01191), b=3.00 (2.94 - 3.06), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
营养阶层 (Ref.
69278): 4.0 ±0.2 se; based on diet studies.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (tm=4-5; tmax=8; K=0.07-0.18; Fec=18,630-47,920).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).
