Klassifizierung / Names
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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.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser pelagisch. Tropical
South America: Amazon and Paraguay-Paraná River basins (Ref. 39031). Recorded from the Uruguay River (Ref. 79585).
Length at first maturity / Size / Gewicht / Alter
Maturity: Lm 10.8 range ? - ? cm
Max length : 26.4 cm TL Männchen/unbestimmt; (Ref. 115169); 34.5 cm TL (female); max. veröff. Gewicht: 420.00 g (Ref. 115169); max. veröff. Gewicht: 420.00 g
Rückenflossenweichstrahlen (insgesamt): 16; Afterflossenweichstrahlen: 33 - 35; Wirbelzahl: 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).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | 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)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Traumatogenic (Ref. 50802)
Nutzung durch Menschen
Mehr Information
ReferenzenAquakulturAquakultur ProfilZuchtlinienGenetikElectrophoresesVererbbarkeitKrankheitenVerarbeitungNutrientsMass conversion
PartnerBilderStamps, Coins Misc.LauteCiguateraGeschwindigkeitSchwimmstilKiemenoberflächeOtolithsGehirngrößeSehfähigkeit
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.01335 - 0.01970), b=3.17 (3.13 - 3.21), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.71 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).
