(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: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
; air tawar bentopelagis. Tropical
South America: Paraguay-Paraná River basin.
Length at first maturity / Size / Weight / umur
Maturity: Lm 12.2  range ? - ? cm
Max length : 27.1 cm TL jantan/; (Ref. 115169); 32.4 cm TL (female); Berat maksimum terpublikasi: 440.00 g (Ref. 115169); Berat maksimum terpublikasi: 440.00 g
Feeds mainly during the daytime, though some large fish (15-20 cm SL) extend their foraging activity to dusk (about 1800-1900H). Night is spent sheltered among vegetation. Small-sized to medium-sized fish (7-10 cm) are solitary and patrol feeding territories (3-4 square m.) in a way similar to that reported for the scale-eating Catoprion mento. Stalking with some use of plant cover is a frequent mode of hunting employed by S. marginatus. It approaches its prey with a slow, stealthy movement from behind or below. It strikes its prey on the tail or anal fin, of which a piece is clipped out with a jerking motion of the body. This clipping is audible underwater. Lurking is also employed during daytime (Ref. 9080).
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. 125652)
ancaman kepada manusia
mitraGambarStamps, Coins Misc.Suara-suaraCiguateraKecepatanTipe renangArea insangOtolithsOtakPenglihatan / visi
muat turun XML
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01318 (0.01060 - 0.01640), b=3.17 (3.12 - 3.22), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.56 se; based on food items.
Daya lenting (Ref. 120179
): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (22 of 100).