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 底中水层性; pH range: 3.0 - 6.0. 热带
South America: main stem of Amazon River, lower Negro River basin in Brazil.
南美洲: 亚马孙河的主流, 在巴西的下游与中游的黑人河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 56.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 39524); 最大体重: 250.00 g (Ref. 52797)
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) : 0; 臀鳍软条: 195 - 312. Body and head of living specimens uniformly black or very dark purple-brown with no humeral spot or patch; juveniles undergo striking pigmentation change from uniformly black by day to very pale with two distinct vertical saddle-like markings at night; dorsal margin of head well rounded (very convex) in adults (Ref. 52797).
身体与活标本的头部均匀黑色或非常深紫色的-褐色的有没有肩部的斑点或小区块; 稚鱼历经显著的颜色改变从均匀黑色白天到非常灰白的有两个明显的垂直像鞍状斑一样的斑纹在晚上; 当成鱼时的头部相当圆的 (非常中凸的) 的上缘.(参考文献 52797)
描述: 尾鳍不存在。
Inhabits blackwater rivers and their seasonally inundated floodplain lakes and forests (Ref. 52797). Feeds on invertebrates (Ref. 52797).
栖息于死水的河与他们的季节性浸水洪泛区湖与森林。 (参考文献 52797) 吃无脊椎动物。 (参考文献 52797)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 亚马孙河的主流, 在巴西的下游与中游的黑人河流域。
Crampton, W.G.R., K.G. Hulen and J.S. Albert, 2004. Redescription of Sternopygus obtusirostris (Gymnotiformes: Sternopygidae) from the Amazon basin, with description of osteology, ecology and electric organ discharges. Ichthyol. Explor. Freshwat. 15(2):121-134. (Ref. 52797)
人类利用
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 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.42 se; based on food items.
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
