Classification / Names
Common names from other countries
Main reference
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. (Ref. 38376)
References |
Biblio |
Coordinator |
Collaborators
Size / Weight / Age
Max length : 100.0 cm SL male/unsexed; (Ref. 36796); max. published weight: 31.4 kg (Ref. 72380); max. reported age: 9 years (Ref. 52065)
Length at first maturity
Lm 37.8  range ? - ? cm
Environment
Freshwater; benthopelagic; potamodromous (Ref. 51243)
Climate / Range
Tropical, preferred ?
Distribution
South America: Paraná, Paraguay, and Uruguay River basins; Laguna dos Patos drainage, upper Chaparé and Mamoré River basin in Bolivia. Occurrence in the remaining Amazon River highly doubtful.
Countries | FAO areas | Ecosystems | Occurrences | Introductions
IUCN Red List Status (Ref. 115185)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquaculture: commercial; gamefish: yes
Tools
Special reports
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Internet sources
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
3.8 ±0.61 se; Based on food items.
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tm=2-3; rel. Fec=1,000; K=0.21-0.23; Tmax=9)
Vulnerability
Moderate to high vulnerability (52 of 100)
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