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. 热带
South America: Amazon-Orinoco basins and the Guyana Shield.
南美洲: 亚马孙河-奥里诺科河的流域与盖亚那盾甲。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 34.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 101566); 最大体重: 83.50 g (Ref. 101566)
简单描述
检索表 | 型态特徵 | 形态测量图
Differs from all congeners by having a dark brown background color marked by 8-18 white or pale yellowish bands (or 4-22 dark inter-bands) which in the anterior 1/3 to 2/3 of body are absent or largely restricted to the ventral part of the lateral surface. Further distinguishable from G. anguillaris and other congeners on the basis of several meristic and morphometric characters: absence of a clear or pale patch near the caudal end of the anal fin and presence of one laterosensory canal pores in the preopercular-mandibular series at the dorsoposterior portion of the preopercle; maximum size 16.2 cm TL; precaudal vertebrae 39-43 (mode 41); pectoral-fin rays 12-14; scales above lateral line 6-8 (mode 7); pored lateral-line scales to first ramus 44-61 (median 52); total number of pored lateral-line scales 72-102 (median 86); anal-fin pterygiophore scales 5-7; adult preorbital length 29.3-38.2% HL; adult mouth width 35.2-46.6% HL; adult body width 3.5-5.4 (mean 4.8) % TL (Ref. 52004).
藉由有一个有别于所有同类有显著的在前 1/3 中对身体中的 2/3 缺席或者主要地局限于侧面表面的腹部份的 8-18条白色或者灰白的淡黄色的条纹 (或者 4-22个深色的之中-条纹) 的深褐色的背景颜色。 进一步根据一些体节形质特征与型态特征的特征可与 G. anguillaris 与其他的同类区别: 臀鳍在尾鳍末端的附近缺乏一个清澈或者灰白的小区块而且在前鳃盖骨的后背部分的前鳃盖骨-颚骨的系列中有一个侧线管孔; 最大体长 16.2 公分TL; 尾前椎 39-43(模态 41); 胸鳍鳍条 12-14;鱗片在側線上面 6-8(模態 7); 對第一個分支 44-61 的有細孔的側線鱗片;(中動脈 52) 有細孔側線鱗片 72-102 的總數;(中動脈 86) 臀鰭支鰭骨鱗片 5-7; 成魚眶前骨長度 29.3-38.2% HL; 成魚嘴寬度 35.2-46.6% HL; 成魚身體寬度 3.5-5.4(意謂 4.8)% TL.(參考文獻 52004)
Facultative air-breathing in the genus (Ref. 126274)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 亚马孙河-奥里诺科河的流域与盖亚那盾甲。
Crampton, W.G.R. and J.S. Albert, 2003. Redescription of Gymnotus coropinae (Gymnotiformes, Gymnotidae), an often misidentified species of Neotropical electric fish, with notes on natural history and electric signals. Zootaxa 348:1-20. (Ref. 52004)
人类利用
工具
特别资料
下载 XML
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=0.00263 (0.00147 - 0.00471), b=2.88 (2.71 - 3.05), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (32 of 100).
