Overview

Distribution

Range Description

This species occurs in the Orinoco River and Maracaibo Lake basins, in Venezuela and Colombia.
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South America: Orinoco River and Maracaibo Lake basins.
  • 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)   http://www.fishbase.org/references/FBRefSummary.php?id=38376&speccode=10622 External link.
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Orinoco River and Lake Maracaibo basins: Colombia and Venezuela.
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Physical Description

Size

Max. size

5.0 cm TL (male/unsexed; (Ref. 38376))
  • 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)   http://www.fishbase.org/references/FBRefSummary.php?id=38376&speccode=10622 External link.
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Type Information

Paratype for Bryconamericus deuterodonoides
Catalog Number: USNM 121438
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): L. Schultz, G. Zuloaga, W. Phelps & R. Sherman
Year Collected: 1942
Locality: Venez: Estado De Aragua, Rio Guarico and Tribs Between San Sebas Tion and San Casemiro, Aragua, Venezuela, South America
  • Paratype: Schultz, L. P. 1944. Proceedings of the United States National Museum. 94 (3181): 344, fig. 51.
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Holotype for Bryconamericus deuterodonoides
Catalog Number: USNM 121437
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Collector(s): L. Schultz, G. Zuloaga, W. Phelps & R. Sherman
Year Collected: 1942
Locality: Venezuela: Estado De Aragua, Rio Guarico and Tribs Between San Sebastion and San Casimiro., Aragua, Venezuela, South America
  • Holotype: Schultz, L. P. 1944. Proceedings of the United States National Museum. 94 (3181): 344, fig. 51.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
B. deuterodonoides is a benthopelagic (ecological region at the lowest level of water body) and potamodromous (migrating within fresh water only) species.

Systems
  • Freshwater
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Environment

benthopelagic; potamodromous (Ref. 51243); freshwater
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Migration

Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2009

Assessor/s
Reis, R & Lima, F.

Reviewer/s
Collen, B., Darwall, W., Ram, M. & Smith, K. (SRLI Freshwater Fish Evaluation Workshop)

Contributor/s

Justification
Assessed as Least Concern due to its commonness and sizeable distribution. Although parts of its range maybe under threat, this species is still likely to be stable.
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Population

Population
One of the most common species in the Orinoco basin. It is considered to be very common and widespread in the Venezuelan Llanos and piemont areas (Taphorn 1992).

Population Trend
Stable
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Threats

Major Threats
There are no known major threats to this species. The Orinoco basin is one of the most intact river systems in the world with a relatively low population density (13 inhabitants per square kilometre), and very limited infrastructure development (World Wildlife Fund 2006). Lake Maracaibo, however, is heavily polluted and under habitat degradation but this area only constitutes a minor part of its range and is therefore not a major threat.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no conservation measures in place, although the population trends are being monitored.
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