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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 / kisaran kedalaman / distribution range
Ekologi
; air tawar pelagis, permukaan. Tropical
South America: Amazon and Paraguay-Paraná River basins (Ref. 39031). Recorded from the Uruguay River (Ref. 79585).
Length at first maturity / Size / Weight / umur
Kematangan: Lm 10.8 range ? - ? cm
Max length : 26.4 cm TL jantan/; (Ref. 115169); 34.5 cm TL (female); Berat maksimum terpublikasi: 420.00 g (Ref. 115169); Berat maksimum terpublikasi: 420.00 g
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 16; Sirip dubur lunak: 33 - 35; vertebrata, bertulang belakang: 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).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | 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)
Status IUCN Red List (Ref. 130435: Version 2025-1)
ancaman kepada manusia
Traumatogenic (Ref. 50802)
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Acuan
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).
Trophic level (Acuan
69278): 4.1 ±0.71 se; based on food items.
Daya lenting (Acuan
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).
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