Fish species composition, distribution and abundance in Lake Victoria basin, Kenya.

Masai, DM ; Ojuok, JE ; Ojwang, W (2005)
Type
Article

Fish species composition, distribution and abundance in Lake Victoria, Kenya and the surrounding dams and satellite lakes were studied from 1997 to 2001 The study revealed that lake Victoria had a total of 37 species representing ten families. Lates niloticus dominated the catches in terms of ichthyomass in Lake Victoria while haplochromine cichlids are still the richest in species diversity followed by Barbus. The haplochromines however showed an upward trend in biomass compared to 1980s. In the satellite lakes, a total of 28 species belonging to ten families were recorded. Haplochromine cichlids were the most diverse group followed by Barbus. The endemic, Oreochromis esculentus was the dominant species among the tilapiines especially in Lake Kanyaboli. Lake Sare had the highest species richness and diversity. In the dams Clarias gariepinus and Oreochromis nilotica was the most widely distributed species while Barbus had the richest species diversity. The endemic tilapiines, Oreochromis esculentus and O. variabilis were also recorded in the dams. The fish species assemblage in the dams and the satellite lakes demonstrates the importance of these water bodies in fish biodiversity conservation.

Publisher
Kenya Marine and Fisheries Research Institute, P.O Box 1881, Kisumu, Kenya

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