分類 / Names
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Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Serrasalminae
Etymology: Pristobrycon: Greek,pristis = saw + Greek, bryko = to bite (Ref. 45335).
Issue
Species only known from the holotype specimen.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Atabapo River in Orinoco river basin, Venezuela.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 11.1 cm SL オス/雌雄の選別がない; (Ref. 26694)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 15; 臀鰭: 31; 脊つい: 37. Large dark ovate spots on the body side and no preanal spine.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
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)
IUCNのレッドリストの状況は (Ref. 130435)
絶滅危惧 (EN) (B1ab(iii)+2ab(iii)); Date assessed: 21 October 2020
Human uses
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インターネットの情報源
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).
栄養段階 (Ref.
69278): 3.1 ±0.2 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).