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Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Serrasalminae
Etymology: Serrasalmus: Latin, serran, serranus, saw and a fish of genus Serranus + Latin, salmo = salmon (Ref. 45335).
More on author: Kner.
Issue
Eschmeyer (1998: 994) syntype designation of BMNH 1928.1.24:10 Myletes maculatus Kner 1858 currently placed under Metynnis, is erroneous. Recent (10 Feb. 1978) and local syntype designations of NMW 57058 collected from Rio Negro, Brazil are erroneous. See Jégu & Santos (2001) for detailed morphology and distribution. See Martins-Santos, Julio-Jr. & Santos (1994) and Nakayama, Porto & Feldberg (2000) for cytogenetic study.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water pelagisch. Tropical
South America: Amazon and Paraguay-Paraná River basins (Ref. 39031). Recorded from the Uruguay River (Ref. 79585).
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm 10.8 range ? - ? cm
Max length : 26.4 cm TL mannelijk / geslacht onbekend; (Ref. 115169); 34.5 cm TL (female); max. gepubliceerd gewicht: 420.00 g (Ref. 115169); max. gepubliceerd gewicht: 420.00 g
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 16; Anale zachte stralen: 33 - 35; Wervels: 36.
Occurs usually in small groups of up to 20 individuals which appear to have a definite range within a pond or a creek. Observed to be active mainly during the day. Larger fish extend their foraging until about 9 at night. where it stays in the shallows near the bottom, sheltered among vegetation (Ref. 9080). Larvae and juveniles hide and feed within the root tangle of water hyacinths, which also act as a dispersal agent during floods (Ref. 40399). Larvae feed on
microscopic crustaceans and small aquatic insects; very small size juveniles (about 1.2 cm)
already clip fins of other fishes (Ref. 40399). Juveniles and adults feed mostly on fins and muscle portions of fishes (Ref. 9080, 40398). Adults may scavenge on dead mammals, including humans (Ref. 40400). Attacks on humans with bite outbreaks may occur in dammed
portions of rivers during the breeding season, related to brood protection by the spawning
adults (Ref. 50802).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Traumatogenic (Ref. 50802)
Gebruik door de mens
Tools
Speciale rapporten
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.01337 - 0.01967), b=3.17 (3.13 - 3.21), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisch niveau (Ref.
69278): 4.1 ±0.71 se; based on food items.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).
