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); ucamara: Named for the geological term 'Ucamara Depression' describing the low-lying region between the lower reaches of the Ucayali and Marañon Rivers caused by subsidence in the upper Amazon foreland basin (Ref. 49730).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: known only from the lowland Rio Ucayali basin in Peru.
南美洲: 在祕魯已知只來自低地的 Rio Ucayali 流域了。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 19.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 49730)
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: 220 - 245. Color pattern with 18-24 dark brown bands separated by narrow pale interbands which are less than one-third the width of the dark bands (Ref. 49730).
具有被狹窄灰白的 interbands 分開的 18-24條深褐色的條紋彩色斑紋那是少於三分之一深色條紋的寬度。 (參考文獻 49730)
Facultative air-breathing in the genus (Ref. 126274); Collected from static, vegetation-choked shallow water (Ref. 49730). Feeds on aquatic invertebrates (Ref. 49730).
採集自靜電，植物窒息的淺水區了。 (參考文獻 49730) 吃水生無脊椎動物。 (參考文獻 49730)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 在祕魯已知只來自低地的 Rio Ucayali 流域了。
Crampton, W.G.R., N.R. Lovejoy and J.S. Albert, 2003. Gymnotus ucamara: a new species of neotropical electric fish from the Peruvian Amazon (Ostariophysi: Gymnotidae), with notes on ecology and electric organ discharges. Zootaxa 277:1-18. (Ref. 49730)
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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).
營養階層 (Ref.
69278): 3.4 ±0.43 se; based on food items.
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 (10 of 100).
