分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes)
電鰻目 (Knifefishes) >
Gymnotidae (Naked-back knifefishes)
裸背電鰻科 (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); paraguensis: Named for the Río Paraguay (Ref. 49716).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: Río Paraguay basin and the Río Paraná drainage.
南美洲: Rio 巴拉圭流域與 Rio Parana 流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 24.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 81048)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 0; 臀鰭軟條: 260 - 270. Color pattern composed of regularly arranges, unpaired (evenly pigmented), dark bands with straight, high contrast margins, with 4-7 inverted Y-shaped, or sometimes X-shaped, or discontinuous dark pigment bands in middle to posterior portion of body (Ref. 49716).
彩色斑紋組成物為經常地安排, 不成對的 (顏色均勻的), 深色條紋有直的, 高的差別邊緣, 有4-7 反轉 Y 形的, 或有時 x-形狀的, 或對身體的在後部部分的在中央中的不連續的深色條紋.(參考文獻 49716)
Facultative air-breathing in the genus (Ref. 126274)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: Rio 巴拉圭流域與 Rio Parana 流域。
Albert, J.S. and W.G.R. Crampton, 2003. Seven new species of the neotropical electric fish Gymnotus (Teleostei, Gymnotiformes) with a redescription of G. carapo (Linnaeus). Zootaxa 287:1-54. (Ref. 49716)
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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=0.00437 (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).
營養階層 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).
