分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes) >
Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Amazon and Orinoco River basins, and related areas in northern South America.
南美洲: 亞馬遜河流域，奧里諾科河, 而且相關了在南美洲北部的區域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 31.6 cm TL 雄鱼/尚未辨别雌雄; (Ref. 26457)
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: 227 - 303; 脊椎骨: 79 - 80. Numerous dark oblique bands on body (23-51, usually over 30), alternating with pale bands. Distance between tip of pectoral fin and origin of anal fin more than one pectoral fin length (rare, even).
在身体 (23-51, 通常在 30上面) 上的很多的深色斜纹, 交互的有灰白的条纹。 胸鳍顶端与臀鳍起点超过一胸鳍长度之间的距离。 (稀有的, 甚至)
Facultative air-breathing in the genus (Ref. 126274)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 亞馬遜河流域，奧里諾科河, 而且相關了在南美洲北部的區域。
Mago-Leccia, F., 1994. Electric fishes of the continental waters of America. Fundacion para el Desarrollo de las Ciencias Fisicas, Matematicas y Naturales (FUDECI), Biblioteca de la Academia de Ciencias Fisicas. Matematicas y Naturales, Caracas, Venezuela. vol. 29 . 206 p. (Ref. 26457)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
人类利用
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特别资料
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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=0.01000 (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): 3.3 ±0.4 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 (22 of 100).
