Creagrutus britskii 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Characiformes Characidae

Scientific Name: Creagrutus britskii
Species Authority: Vari & Harold, 2001

Assessment Information [top]

Red List Category & Criteria: Least Concern 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)
Assessed as Least Concern due to its fairly wide distribution. Damming that has occurred in the area of this species' distribution has not had a major impact on it.

Geographic Range [top]

Range Description: This species occurs in the upper Tocantins River basin in Brazil.
Countries occurrence:
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species has a stable population trend at present.
Current Population Trend: Stable
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: C. britskii is a benthopelagic (ecological region at the lowest level of water body) species. Occurs in moderate sized tributaries, generally bottom swimmers feeding on benthic aquatic insects. Swim in small schools in fast flowing water.
Systems: Freshwater

Threats [top]

Major Threat(s): Damming is in fact a factor of major concern in regard to the conservation of the ichthyofauna of the upper Rio Tocantins area. Within the range of C. britskii the huge Serra da Mesa dam was built, which undoubtedly destroyed much habitat formerly occupied by the species. However, since C. britskii is a small-sized species which occurs in moderate-sized streams, only the building of large dams would not probably result in its demise.

Conservation Actions [top]

Conservation Actions: The species occurs in at least one conservation unit (Terra Ronca State Park in northern Goiás).

Classifications [top]

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

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
7. Natural system modifications -> 7.2. Dams & water management/use -> 7.2.11. Dams (size unknown)
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.5. Threats
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Diegues, A.C.S. 1994. An Inventory of Brazilian Wetlands. IUCN, Gland, Switzerland.

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., Malabarba, L.R., Buckup, P.A., Pezzi da Silva, J.F., Vari, R.P., Harold, A., Benine, R., Oyakawa, O.T., Pavanelli, C.S., Menezes, N.A., Lucena, C.A.S., Malabarba, M.C.S.L., Lucena, Z.M.S., Reis, R.E., Langeani, F., Cassati, L. and Bertaco, V.A. 2003. Genera Incertae Sedis (uncertain placement) in Characidae. In: R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds), Checklist of the Freshwater Fishes of South and Central America, pp. 106-168. Porto Alegre: EDIPUCRS, Brasil.

Vari, R.P. and Harold, A.S. 2001. Phylogenetic study of the Neotropical fish genera Creagrutus Günther and Piabina Reinhardt (Teleostei: Ostariophysi: Characiformes), with a revision of the Cis-Andean species. Smithsonian Contributions to Zoology 613: 1-239.

Citation: Reis, R & Lima, F. 2009. Creagrutus britskii. The IUCN Red List of Threatened Species 2009: e.T167791A6383236. . Downloaded on 26 November 2015.
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