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); mamiraua: Named for the Mamirauá lake system and the Mamirauá Sustainable Development Reserve (formerly the Estaçao Ecológica Mamirauá). Noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; pH range: 6.9 - 7.3. 亞熱帶的
South America: two whitewater lake systems on the Rio Solimões floodplain of central Amazonia (the Mamirauá lake system near Tefé, and Lago Janauacá near Manaus), Amazonas State, Brazil (Ref. 41292).
南美洲: 在中央亞馬遜河 (在 Tefe 附近的 Mamiraua 湖系統 , 與在馬瑙斯附近的 Lago Janauaca) 的 Rio Solimoes 洪泛區上的二個白水的湖系統, Amazonas 說巴西.(參考文獻 41292)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 24.3 cm TL 雄魚/尚未辨別雌雄; (Ref. 41292); 最大體重: 40.00 g (Ref. 41292)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Deep body (body depth 11-13% TL versus 6-10) possessing very thin pale bands (less than 1/5 the width of the dark bands) with sharp (high contrast) margins. Bands are sinuous on the anterior half of the body, and extend clearly to the dorsal midline (Ref. 41292).
身體縱深 (體高 11-13% TL 對 6-10) 持有非常細的灰白條紋 (少於 1/5 深色條紋的寬度) 具有銳利的 (高的差別) 邊緣。 條紋在身體前半部上是彎曲的, 而且清楚地對背部中線延伸。 (參考文獻 41292)
Facultative air-breathing in the genus (Ref. 126274); Oviparous (Ref. 205). Males provide parental care in nests excavated for larvae (Ref. 55570).
卵生的.(參考文獻 205) 雄性在為仔魚被挖的巢中提供親代養育。 (參考文獻 55570)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Parental care is provided by the male. Nests consisted of a group of small juveniles under a dense roots of floating macrophytes which are attended by a single male adult (Ref. 55570).南美洲: 在中央亞馬遜河 (在 Tefe 附近的 Mamiraua 湖系統 , 與在馬瑙斯附近的 Lago Janauaca) 的 Rio Solimoes 洪泛區上的二個白水的湖系統, Amazonas 說巴西.(參考文獻 41292)
Albert, J.S. and W.G.R. Crampton, 2001. Five new species of Gymnotus (Teleostei: Gymnotiformes) from an upper Amazon floodplain, with descriptions of electric organ discharges and ecology. Ichthyol. Explor. Freshwat. 12(3):241-266. (Ref. 41292)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 November 2018
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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 ±0.47 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 (14 of 100).
