分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Anostomidae (Headstanders)
小口脂鯉科 (Headstanders) > Leporininae
Etymology: Insperanos: Name from Latin 'īnspērāns' for unexpected, alluding to the surprising discovery of an ancient
lineage of Anostomidae represented by I. nattereri, plus the four first letters of Anostomus referring to the type genus of the family, following the practice of previous authors who described genera in the Anostomidae (e.g. Pseudanos Winterbottom, 1980;
Petulanos Sidlauskas & Vari, 2008).
Eponymy: Dr Johann Natterer (1787–1843) was an Austrian naturalist and collector. [...] (Ref. 128868), visit book page.
More on author: Steindachner.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性. 熱帶
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: throughout Orinoco and Amazon basins; Brazil and possibly Bolivia and Colombia.
南美洲: 黑人的河, Aleixo 湖, 在巴西的中央亞馬遜河流域。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 36.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 126097); 最大體重: 669.92 g (Ref. 126097)
Adults occur in rocky areas of the river with moderate to high current (Ref. 57460). Feed on sponges (Ref. 57460). Distinct pairs breed on densely grown weedy places (Ref. 205).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Distinct pairs breed on densely grown weedy places (Ref. 205).南美洲: 黑人的河, Aleixo 湖, 在巴西的中央亞馬遜河流域。
Sidlauskas, B.L., F.M. Assega, B.F. Melo, C. Oliveira and J.L.O. Birindelli, 2021. Total evidence phylogenetic analysis reveals polyphyly of Anostomoides and uncovers an unexpectedly ancient genus of Anostomidae fishes (Characiformes). Zool. J. Linn. Soc. 194(2):626-669. (Ref. 138033)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
|
a=0.00891 (0.00521 - 0.01525), b=3.08 (2.93 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
營養階層 (參考文獻 69278) |
2.3 ±0.1 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Moderate vulnerability (35 of 100). 🛈 |