分类 / Names
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).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 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 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 13.0 cm SL 雄鱼/尚未辨别雌雄; (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).
主要发现于水流是非常强的急流的河与 diverticules 的上游了, 水是清澈的，而且浅滩与底部由很多的岩石块石组成在它下面发现庇护所。 在这一个生存环境中在哪里它可能是非常丰富又其他的种例如格氏兔脂鲤［Leporinus granti］ ， L. despaxi ， Astyanax meunieri ， 尾斑瑙脂鲤［Bryconops caudomaculatus］ , 微羽油鲶［Imparfinis minutus］ ,小油鲶［Pimelodella cristata］ 与 Crenicichla multispinosa 也被发现.(参考文献 35381)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00397 - 0.03168), b=2.97 (2.73 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
