分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Chasmocranus: Greek, chanos, -eos, ous, and chasma, -atos = abyss, mouth opened, inmensity + Greek, kranion = skull (Ref. 45335).
More on author: Eigenmann.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 居于水底的. 熱帶
South America: Coastal drainages from Guyana to Suriname, Negro, Orinoco and Xingu River basins.
南美洲: 海岸的從蓋亞那到蘇利南,尼格羅河,奧里諾科河與 Xingu 河流域的流域。 co 河流域,委內瑞拉。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 17.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 36914)
Captured in creeks with rocky bottoms and in areas where the water changes level (Ref. 27188). Lies hidden under rocks and Podostemaceae. Its color pattern, like that of the other Heptapterus, provides perfect camouflage. The species which occur more frequently with it are: Imparfinis minutus, Moenkhausia oligolepis, Pyrrhulina filamentosa, Characidium fasciadorsale [= Characidium zebra] and Crenicichla albopunctata (Ref. 35381).
在小溪中捕获,底部为岩石的地方与在水改变水平的区域中.(参考文献 27188) 躺卧在岩石与川苔草下面藏。 它的彩色斑纹, 像那另一个 Heptapterus, 提供完成式伪装。 多出现的此鱼种经常有它是: 微羽油鲶[Imparfinis minutus] , Moenkhausia oligolepis , Pyrrhulina filamentosa, 纹背溪脂鲤[Characidium fasciadorsale] [=条纹溪脂鲤[Characidium zebra] ] 与 Crenicichla albopunctata.(参考文献 35381)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 海岸的從蓋亞那到蘇利南,尼格羅河,奧里諾科河與 Xingu 河流域的流域。 co 河流域,委內瑞拉。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
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特别资料
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基于模型的估算
系统发育多样性指数 (参考文献 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=0.00891 (0.00500 - 0.01588), b=2.99 (2.84 - 3.14), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
营养阶层 (参考文献 69278) |
3.6 ±0.4 se; based on size and trophs of closest relatives |
回复力 (参考文献 120179) |
低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.). |
渔业脆弱性 (Ref. 59153) |
Moderate to high vulnerability (49 of 100). 🛈 |