分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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 / depth range / distribution range
生態學
; 淡水 底中水層性. 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 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 24.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 26694)
背的軟條 (總數) : 15 - 16; 臀鰭軟條: 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.
在垂直的鰭上的深色的斑點與分散的不規則地在身體與頭部之上; 沒有一個前臀鰭硬棘; 而且沒有細的 '像胡椒粉一樣的' 斑點。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00841 - 0.03761), b=3.12 (2.94 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
