Intensifying agricultural practices, lead to high input of pesticides and spread of their residue contamination over catchments raising concern over the health hazard posed by the presence of pesticide residues in the environment. This study aim at providing a basis for monitoring pesticides residue contamination of the water bodies in Lake Naivasha catchment through; identifying the pesticides applied in the catchment, the status of selected pesticides and their potential effect to human health and life of aquatic organisms. The study found that 59%of the pesticides applied within the L....

This work covers findings on algal periphyton composition in the Nyangores tributary of Mara River in Kenya. The work explores new area that has not been comprehensively researched on. Therefore, it will serve as a platform of further research on algae in tropical fresh water rivers in general.Notably, research in Kenyan lakes on phytoplankton have been well documented but little has been done periphyton in Kenyan rivers