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); tigre: Specific epithet from the common name used in the local aquarium trade referring to the tiger-like markings (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 Amazon basin, Río Pastaza basin in Ecuador to the Tapajós basin in Brazil.
南美洲: Rio 亞馬遜河流域, 在厄瓜多到的 Rio Pastaza 流域在巴西的 Tapajos 流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 41.1 cm TL 雄魚/尚未辨別雌雄; (Ref. 49716)
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: 190 - 240. Presence of irregular pale-yellow blotches on chin, behind and under eyes, over opercle, and between eyes; pale yellow bands on body with straight, high contrast margins, as broad or broader than brown bands anteriorly; obliquely oriented hyaline and dark stripes at caudal end of anal fin (Ref. 49716).
出現在下巴上的不規則的白黃色的斑塊,在眼後上方,在鰓蓋之上, 與在眼之間; 在身體有直線上的白黃色的條紋,高度地對比邊緣, 當寬或較寬的超過褐色條紋前面地; 在臀鰭的尾部末端的斜向透明而深色的斑紋.(參考文獻 49716)
Facultative air-breathing in the genus (Ref. 126274)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Rio 亞馬遜河流域, 在厄瓜多到的 Rio Pastaza 流域在巴西的 Tapajos 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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 23 November 2020
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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 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (31 of 100).
