Barbus somereni

– Least Concern

Taxonomy

Kingdom:	ANIMALIA
Phylum:	CHORDATA
Class:	ACTINOPTERYGII
Order:	CYPRINIFORMES
Family:	CYPRINIDAE
Scientific Name:	Barbus somereni
Species Authority:	Boulenger, 1911
Taxonomic Notes:	The genus Barbus (Cyprinidae) is restricted to a small number of species mainly inhabiting the European ichthyographic region including Northeast Africa. Most of the African species that are currently included in the genus, taxonomically do not appear to be closely related to the genus Barbus sensu strictu. However, no attempts have yet been made at an adequate nomenclature of the African forms. We therefore follow Berrebi et al. (1996) and use in this paper the term ‘Barbus’ for the cyprinid fish species which were previously considered as Barbus (Seegers et al., unpublished).

Assessment Information

Red List Category & Criteria:	LC ver 3.1 (2001)
Year Assessed:	2006
Assessor/s:	Natakimazi, G. & Hanssens, M.
Evaluator/s:	Snoeks, J. (Freshwater Fish Red List Authority) & Darwall, W. (Freshwater Biodiversity Assessment Programme)
Justification:	A relatively widespread species. Found in riverine habitat in Malagarasi River, Rusizi basin, upper and middle Akagera, and also in some Ruwenzori streams (Nile basin). Impacts of farming extension in rivers valleys (water turbidity, siltation) are local threats to the species.

Geographic Range

Range Description:	Malagarasi River, Rusizi basin, Upper and middle Akagera. Also found in Ruwenzori streams (Nile basin).
Range Map:	(click for detailed map)
Countries:	Native: Burundi; Rwanda; Tanzania, United Republic of; Uganda

Population

Population:	Not known, but rare.
Population Trend:

Habitat and Ecology

Habitat and Ecology:

Restricted to mountain stream ecosystems. Inhabits the headwaters of rivers at high altitudes (Eccles 1992).

System:

Freshwater

List of Habitats:

5.1	Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)

Threats

Threats:

1. Water turbidity due to erosion on watershed and agriculture extension.

List of Threats:

1.1	Habitat Loss/Degradation - Agriculture (ongoing)
6.3.7	Pollution (affecting habitat and/or species) - Water pollution - Sediment (ongoing)

Conservation Actions

Conservation Actions:

Unknown.

List of Conservation Actions:

3.9	Research actions - Trends/Monitoring (needed)
4.1	Habitat and site-based actions - Maintenance/Conservation (needed)

Bibliography

Bibliography:

De Vos, L., Snoeks, J. and Thys van den Audenaerde, D.F.E. 2001. An annotated checklist of the fishes of Rwanda (East central Africa), with historical data on introductions of commercially important species. Journal of East African Natural History 90: 1–68

De Vos, L., Taverne, L. and Thys van den Audenaerde, D.F.E. 2001. L’Ichtyofaune du bassin de la Malagarasi (système du lac Tanganyika): une synthèse de la connaissance actuelle. Ann. Mus. R. Afr. Centr., Sc. Zool. 285: 117–152

Eccles, D.H. 1992. FAO species identification sheets for fishery purposes. Field guide to the freshwater fishes of Tanzania. FAO, Rome.

Greenwood, P.H. 1966. The Fishes of Uganda. The Uganda Society, Kampala, Uganda.

Citation:	Natakimazi, G. & Hanssens, M. 2006. Barbus somereni. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 06 September 2008.
Disclaimer:	To make use of this information, please check the Copyright and Data Disclaimer.
Feedback:	If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided.