分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Serrasalminae
Etymology: Pristobrycon: Greek,pristis = saw + Greek, bryko = to bite (Ref. 45335).
Issue
See Machado-Allison & Fink 1996: 31 for distribution in Venezuela.
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Blackwater areas in a tributary of the Casiquiare River and a tributary of the Atabapo River in Venezuela.
南美洲: 在 Casiquiare 河的一個支流與 Atabapo 河的一個支流中的死水區域。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 24.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 26694)
背的软条 (总数) : 15 - 16; 臀鳍软条: 29 - 31; 脊椎骨: 37 - 39. Dark spots on the vertical fins and scattered irregularly over the body and head; lack of a pre-anal spine; and lack of fine 'pepper-like' spots.
Body shape (shape guide): short and / or deep.
在垂直的鳍上的深色的斑点与分散的不规则地在身体与头部之上; 没有一个前臀鳍硬棘; 而且没有细的 '像胡椒粉一样的' 斑点。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在 Casiquiare 河的一個支流與 Atabapo 河的一個支流中的死水區域。
Fink, W.L. and A. Machado-Allison, 1992. Three new species of piranhas from Brazil and Venezuela (Teleostei: Characiformes). Ichthyol. Explor. Freshwat. 3(1):55-72. (Ref. 26694)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
人类利用
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特别资料
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Estimates based on models
Phylogenetic diversity index (参考文献
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00864 - 0.03832), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
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