|Scientific Name:||Sierrathrissa leonensis|
|Species Authority:||Thys van den Audenaerde, 1969|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Assessor/s:||Moelants, T. & Olaosebikan, B.D.|
|Reviewer/s:||Snoeks, J., Tweddle, D., Getahun, A., Lalèyè, P., Paugy, D., Zaiss, R., Fishar, M.R.A & Brooks, E.|
The species is widespread, short lived wth high resilience to exploitation. It is therefore listed as Least Concern. It has also been assessed regionally as Least Concern for western Africa. It is estimated that less than 5 % of the species is found in the central Africa region, and it is thus categorised as Not Applicable.
|Range Description:||This species has a widespread but patchy distribution from Senegal to Cameroon.
Central Africa: In Lower Guinea, Sierrathrissa leonensis is only known from the Wouri River (Cameroon).
Western Africa: Sierrathrissa leonensis, originally described from Sierra Leone, is now known to occur in Senegal, Gambia, the Bia (Côte d’Ivoire), Lake Volta (Ghana) and the Niger basin.
Native:Cameroon; Côte d'Ivoire; Gambia; Ghana; Guinea; Guinea-Bissau; Nigeria; Senegal; Sierra Leone; Togo
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||No information available.|
|Habitat and Ecology:||Sierrathrissa leonensis is a pelagic species. It occurs in rivers but also in man-made lakes. It schools in open shallow waters, rising to about 30 cm at night in Lake Volta. Sierrathrissa leonensisfeeds on plankton, especially cladocerans.|
|Major Threat(s):||In Nigeria, this species has commercial importance.|
|Conservation Actions:||None known.|
|Citation:||Moelants, T. & Olaosebikan, B.D. 2010. Sierrathrissa leonensis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 06 December 2013.|
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