Common names from other countries
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecología
; agua dulce bentopelágico; potamodromo (Ref. 51243). Subtropical
Distribución
Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri
South America: streams, rivers and lagoons of coastal areas and interior plains of Rio Grande do Sul (Brazil), Uruguay and Argentina.
Tamaño / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 31.0 cm TL macho / no sexado; (Ref. 79585); peso máximo publicado: 330.00 g (Ref. 79585)
Occurs in ponds. Feeds on fish (Ref. 79585).
Life cycle and mating behavior
Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva
Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. 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. 38376)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
Pesquerías: comercial
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00788 - 0.01457), b=3.09 (3.04 - 3.14), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
Nivel trófico (Ref.
69278): 4.0 ±0.60 se; based on food items.
Resiliencia (Ref.
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec=21).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).