Brycon posadae 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Characiformes Bryconidae

Scientific Name: Brycon posadae
Species Authority: Fowler, 1945
Taxonomic Notes: Transandean Brycon species need a taxonomical revision. Also, much of the Colombian Pacific versant (mountain slope) is inaccessible for Colombian ichthyologists, so little is known about the fish fauna inhabiting the area.

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2009
Date Assessed: 2007-03-01
Assessor(s): Reis, R & Lima, F.
Reviewer(s): Collen, B., Darwall, W., Ram, M. & Smith, K. (SRLI Freshwater Fish Evaluation Workshop)
Very little is known about the species. The species could potentially be threatened but the area in which it is distributed is so inaccessible that no inferences can be made. Coupled with its cryptic habits, it is difficult to infer anything about the species, so it is assessed as Data Deficient.

Geographic Range [top]

Range Description: This species occurs in the Trans-Andean river basins of Ecuador and Colombia. The species is very poorly known. Lack of records reflect lack of collection and difficulties in collecting rather than rarity.
Countries occurrence:
Colombia; Ecuador
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: No population information known.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: B. posadae is a benthopelagic (ecological region at the lowest level of water body) species. Plant material is an important part of the diet of adult Brycon species; and thus these fish play a role in the dispersal of plants whose fruits they eat (Berra 2001).
Systems: Freshwater

Threats [top]

Major Threat(s): Due to their dependence on plant material in their diet, the destruction of rainforests surrounding their habitat could have serious consequences for this species. The areas that the species occurs in are unlikely to be particularly heavily impacted.

Conservation Actions [top]

Conservation Actions: There are no conservation measures in place and research into general biology and ecology (habitat status and population trends) are required.

Classifications [top]

5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)
suitability: Suitable  

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.2. Intentional use: (large scale)
♦ timing: Ongoing ♦ scope: Unknown ♦ severity: Unknown ⇒ Impact score: Unknown 
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.1. Taxonomy
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.5. Threats
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Berra, T. 2001. Freshwater Fish Distribution. Academic Press, San Diego, California.

Eschmeyer, W.N. 1998. Catalogue of fishes. California Academy of Sciences, San Francisco.

Froese, R. and Pauly, D. 2006. FishBase. Available at:

IUCN. 2009. IUCN Red List of Threatened Species (ver. 2009.2). Available at: (Accessed: 3 November 2009).

Lima, F.C.T. 2003. Characidae - Bryconinae (Characins, tetras). In: R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds), Checklist of the Freshwater Fishes of South and Central America, pp. 174-181. Porto Alegre: EDIPUCRS, Brasil.

Wu, H.L., Shao, K.T. and Lai, C.F. 1999. Latin-Chinese dictionary of fishes names. The Sueichan Press, Taiwan.

Citation: Reis, R & Lima, F. 2009. Brycon posadae. The IUCN Red List of Threatened Species 2009: e.T167690A6368271. . Downloaded on 27 November 2015.
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