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: Pygopristis: Greek, pyge = rump + Greek, pristis = saw (Ref. 45335).
More on author: Cuvier.
Issue
See Géry (1972:209), Jégu & Santos (1988a:242) and Machado-Allison & Fink (1996:13) for detailed morphology. See Machado-Allison & Fink (1996:14) 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: Orinoco River basin, north and eastern Guiana Shield rivers; tributaries of the lower Amazon River.
南美洲: 奧里諾科河河流域, 北方與東方的圭亞那遮蔽河; 亞馬遜河下游的支流。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 21.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 111697)
Rare (Ref. 12225). Possesses powerful dentition that can cause serious bites.
稀有的.(參考文獻 12225) 持有能引起嚴重的咬的有力的牙齒。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 奧里諾科河河流域, 北方與東方的圭亞那遮蔽河; 亞馬遜河下游的支流。
Jégu, M., 2003. Serrasalminae (Pacus and piranhas). p. 182-196. 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. 39031)
人類使用
漁業: 商業性
工具
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.01189 - 0.03673), b=3.13 (2.98 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.6 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 (12 of 100).
