Common names from other countries
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Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Colossomatinae
Etymology: Piaractus: Greek, piar = fat, the side with grease of a body + Greek, aktos , ago = to carry.
More on author: Cuvier.
Issue
See Loubens & Panfili (2001:51) for growth biology.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water pelagisch; pH range: 4.8 - 6.8; dH range: ? - 15. Tropical; 23°C - 28°C (Ref. 2060); 23°N - 11°S
South America: Amazon and Orinoco River basins (Ref. 39031). Reported from Argentina (Ref. 9086).
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm ?, range 52 - ? cm
Max length : 88.0 cm TL mannelijk / geslacht onbekend; (Ref. 40637); max. gepubliceerd gewicht: 25.0 kg (Ref. 2060); max. gerapporteerde leeftijd: 28 Jaren (Ref. 39139)
Juveniles mimic Serrasalmus nattereri. Feeds on insects and decaying plants (Ref. 32894). Possesses powerful dentition that can cause serious bites (Ref. 4537). An important foodfish (Ref. 12202).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Assuming standard charicid mode of reproduction. Replace ASAP.
Ortega, H. and R.P. Vari, 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25. (Ref. 6329)
Status op de Rode Lijst van het IUCN (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Gevaar voor de mens
Traumatogenic
Gebruik door de mens
Visserij: van minder commercieel belang; Aquacultuur: commercieel; Aquarium: Commercieel
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03162 (0.02336 - 0.04281), b=2.99 (2.90 - 3.08), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.5 ±0.22 se; based on food items.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (tm=7; tmax=28).
Fishing Vulnerability (Ref.
59153): High vulnerability (55 of 100).