The IUCN Red List of Threatened Species

Clarias alluaudi

 – Least Concern

Taxonomy

Kingdom: ANIMALIA
Phylum: CHORDATA
Class: ACTINOPTERYGII
Order: SILURIFORMES
Family: CLARIIDAE
Scientific Name: Clarias alluaudi
Species Authority: Boulenger, 1906
Common Name/s:
EnglishALLAUAD'S CATFISH
Taxonomic Notes: Doubtfully distinguished from Clarias werneri.

Assessment Information

Red List Category & Criteria: LC    ver 3.1 (2001)
Year Assessed: 2006
Assessor/s: Hanssens, M.
Evaluator/s: Snoeks, J. (Freshwater Fish Red List Authority) & Darwall, W. (Freshwater Biodiversity Assessment Programme)
Justification: Large extent of occurrence in the region. No current major widespread threats identified. Future threats include the regression of swamps and illegal fishing practice.

Geographic Range

Range Description: Lakes Victoria, Kyoga, Edward, George, and their affluent streams, rivers and associated satellite lakes (Kachira, Nakivali, Kijanebalora, Katwe, Kirumi). Also in the Victoria Nile, Malagarasi River and the Lake Tanzania and Rukwa systems (Seegers 1996).
Range Map:
(click for detailed map)
Countries: Native:

Burundi; Kenya; Tanzania, United Republic of; Uganda

Population

Population: Information on population structure and abundance is lacking, but it has a fragmented distribution and is rarely found in artisanal fish catches.
Population Trend: Unknown

Habitat and Ecology

Habitat and Ecology: Inhabits areas with marginal macrophytes, water lilies and papyrus. Common in smaller streams or swamps in basins outside Lake Rukwa (Seegers 1996). No information was available on feeding and breeding biology. Max. size: 350 mm TL (Teugels in Daget et al. 1986).
System: Freshwater
List of Habitats:
5.1Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)
5.4Wetlands (inland) - Bogs, Marshes, Swamps, Fens, Peatlands
5.5Wetlands (inland) - Permanent Freshwater Lakes (over 8ha)

Threats

Threats: Regression of swamps and other wetlands around lakes and rivers due to agriculture extension. Illegal fishing practice. Bait fishery where juveniles are used as bait.
List of Threats:
1.1Habitat Loss/Degradation - Agriculture (ongoing)
3.1.1Harvesting (hunting/gathering) - Food - Subsistence use/local trade (ongoing)

Conservation Actions

Conservation Actions: No information available.
List of Conservation Actions:
3.9Research actions - Trends/Monitoring (needed)
4.1Habitat and site-based actions - Maintenance/Conservation (needed)

Bibliography

Bibliography:

Daget, J., Gosse, J.P., Teugels, G.G. and Thys van den Audenaerde, D.F.E. (eds). 1991. Check-list of the Freshwater Fishes of Africa (CLOFFA IV) ISNB, Brussels and MRAC, Tervuren, Belgium, and ORSTOM, Paris, France.

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

Seegers, L. 1996. The fishes of the Lake Rukwa Drainage. Annales du Musée royal de l'Afrique Central, Sciences Zoologiques 287: 1–407.


Citation: Hanssens, M. 2006. Clarias alluaudi. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 29 August 2008.
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