分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
七鰭鯰科 (Three-barbeled catfishes)
Etymology: Chasmocranus: Greek, chanos, -eos, ous, and chasma, -atos = abyss, mouth opened, inmensity + Greek, kranion = skull (Ref. 45335).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 居於水底的. 熱帶
South America: Maroni/Marowijne River and Sinnamary River basins.
南美洲: Maroni/Marowijne 河與 Sinnamary 河流域。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 13.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 35381)
Found mainly in the upper reaches of rivers and diverticules of rapids where the current is very strong, the water is clear and shallow and the bottom consists of numerous rocky blocks under which it finds shelter. In this biotope where it can be very abundant, other species like Leporinus granti, L. despaxi, Astyanax meunieri, Bryconops caudomaculatus, Imparfinis minutus, Pimelodella cristata and Crenicichla multispinosa are also found (Ref. 35381).
主要發現於水流是非常強的急流的河與 diverticules 的上游了, 水是清澈的,而且淺灘與底部由很多的岩石塊石組成在它下面發現庇護所。 在這一個生存環境中在那裡它可能是非常豐富又其他的種例如格氏兔脂鯉〔Leporinus granti〕 , L. despaxi , Astyanax meunieri , 尾斑瑙脂鯉〔Bryconops caudomaculatus〕 , 微羽油鯰〔Imparfinis minutus〕 ,小油鯰〔Pimelodella cristata〕 與 Crenicichla multispinosa 也被發現.(參考文獻 35381)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Maroni/Marowijne 河與 Sinnamary 河流域。
Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36914)
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 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00813 (0.00374 - 0.01767), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.5 ±0.4 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 (42 of 100). 🛈 |