分类 / 名称
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).
Eponymy: Carlos Arturo Ardila Rodríguez is an ichthyologist who teaches at Universidad Metropolitana, Barranquilla, Colombia. He has made numerous contributions to the systematics of pencilfishes. (Ref. 128868), visit book page.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 居于水底的. 热带
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Rio Magdalena basin in Colombia.
南美洲: 在哥伦比亚的 Rio Magdalena 流域。
大小 / 重量 / 年龄
简单描述
检索表 | 型态特徵 | 形态测量图
Distinguished from all congeners by the following combination of characters: caudal end of the anal fin with a clear patch; dorso-posterior portion of the preopercle with two laterosensory canal pores ( from the preopercular-mandibular series); progressive loss of alternating dark and light pigments bands with the size; head length, 10.2-11.2% total length; anal fin pterygiophores with many scales (9-10); few pored lateral-line scales to first ramus (47-48); total number of pored lateral-line scales 84 (n=1); relatively large eye, orbital diameter 8.5-9.0% HL) (Ref. 54466).
与所有的同类区分了藉由跟随组合特征: 臀鳍有一个清澈的小区块的尾部末端; dorso-在后部部分那前鳃盖骨有二个侧线管孔;( 从前鳃盖骨-颚骨的系列) 改革论者用大小消失的交互深色而淡的有颜色条纹; 头长, 10.2-11.2% 全长; 臀鳍支鳍骨有许多鳞片 (9-10); 少数的有孔对第一个分支的侧线鳞片了;(47-48) 有细孔侧线鳞片 84(n=1) 的总数; 相当大的眼, 眼窝的直径 8.5-9.0% HL).(参考文献 54466)
Facultative air-breathing in the genus (Ref. 126274)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在哥伦比亚的 Rio Magdalena 流域。
Maldonado-Ocampo, J.A. and J.S. Albert, 2004. Gymnotus ardilai: a new species of Neotropical electric fish (Ostariophysi: Gymnotidae) from the Rio Magdalena basin of Colombia. Zootaxa 759:1-10. (Ref. 54466)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
濒危 (EN) (B1ab(iii)); Date assessed: 10 October 2014
人类利用
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基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00209 - 0.00911), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Low vulnerability (19 of 100).
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