Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: Known from Rio Amazonas basin (Amapá, Pará, Roriama), Rio Madeira basin. (Amazonas, Rondonia) and Rio Negro basin (Amazonas), Rio Purus basin (Acre, Amazonas), Rio Solimões basin (Amazonas), and Rio Tapajós basin (Pará) (Ref. 117280).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Mateussi, N.T.B., C. Oliveira and C.S. Pavanelli, 2018
National Database:

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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 Ecologie

; zoet water pelagisch. Tropical

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South America: Bolivia, Brazil, Colombia, Peru and Venezuela (widespread across the Amazon and Orinoco river basins).

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 24.2 cm SL mannelijk / geslacht onbekend; (Ref. 117280)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Wervels: 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).

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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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 05 December 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: van groot commercieel belang

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 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).

Trofisch niveau (Ref. 69278): 2.6 ±0.3 se; based on size and trophs of closest relatives

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (20 of 100).

Mylossoma albiscopum (Cope, 1872)