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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.
Taxonomic Remarks
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.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce pelágico. Tropical
South America: Amazon and Paraguay-Paraná River basins (Ref. 39031). Recorded from the Uruguay River (Ref. 79585).
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm 10.8 range ? - ? cm
Max length : 26.4 cm TL macho / no sexado; (Ref. 115169); 34.5 cm TL (female); peso máximo publicado: 420.00 g (Ref. 115169); peso máximo publicado: 420.00 g
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 16; Radios blandos anales: 33 - 35; Vértebra: 36.
Body shape (shape guide): short and / or deep; Cross section: compressed.
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).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Traumatogenic (Ref. 50802)
Usos humanos
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.01313 - 0.01913), b=3.17 (3.13 - 3.21), in cm total length, based on LWR estimates for this species (Ref.
93245).
Nivel trófico (Referencia
69278): 4.1 ±0.71 se; based on food items.
Resiliencia (Referencia
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Vulnerabilidad pesquera (Ref.
59153): Low vulnerability (25 of 100).
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