Classification / Names
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Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Colossomatinae
Etymology: Mylossoma: Greek, mylo = mill + Greek, soma = body (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce pélagique. Tropical
South America: Bolivia, Brazil, Colombia, Peru and Venezuela (widespread across the Amazon and Orinoco river basins).
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 24.2 cm SL mâle / non sexé; (Ref. 117280)
Description synthétique
Morphologie | Morphométrie
Vertèbres: 36 - 37. This species differs from M. aureum by having the last abdominal spine reaching the anal-fin origin or almost (vs. last abdominal spine clearly separated from anal-fin origin); vertebrae 36-37 (vs. 38-39), and with a distinct black blotch on the opercle (vs. no blotch or faded on the opercle); differs from M. duriventre, M. unimaculatum by having branched anal-fin rays 31, rarely 30-38 (vs. 26-32); differs from M. unimaculatum by having circumpeduncular scales 28-36 (vs. 34-40) and perforated scales 74-99 (vs. 95-110) (Ref. 117280).
Reported to be an herbivore with tendency for omnivory, feeding on fruits, seeds and larvae of aquatic insects and commonly occurs at whitewater rivers and associated floodplain lakes and channels. Spawning period is reported to be relatively long, with two spawning peaks during the flood season. It is one of the most important species in commercial fisheries in the Brazilian Amazon (Ref. 117280).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Mateussi, N.T.B., C. Oliveira and C.S. Pavanelli, 2018. Taxonomic revision of the Cis-Andean species of Mylossoma Eigenmann & Kennedy, 1903 (Teleostei: Characiformes: Serrasalmidae). Zootaxa 4387(2):275-309. (Ref. 117280)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: hautement commercial
Plus d'informations
Noms communsSynonymesMétabolismePrédateursÉcotoxicologieReproductionMaturitéFraiRassemblement de ponteFéconditéŒufsDéveloppement de l'œuf
Taille/ÂgeCroissanceLongueur-poidsLongueur-longueurFréquences de longueursMorphométrieMorphologieLarvesDynamique des populations larvairesRecrutementAbondanceBRUVS
RéférencesAquacultureProfil d'aquacultureSouchesGénétiqueElectrophoresesHéritabilitéPathologiesTraitementNutrientsMass conversion
CollaborateursImagesStamps, Coins Misc.SonsCiguateraVitesseType de nageSurface branchialeOtolithesCerveauxVision
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02455 (0.01070 - 0.05632), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).