Between January and November 2008, 650 fish were examined, of which, 165 fish were caught in the reservoirs, 213 from cages, 153 from the earthen ponds and 119 from the Kajjansi stream feeding the ponds. Eight helminth species were identified including two monogeneans: Cichlidogyrus tilapiae and C. sclerosus; four digeneans: Clinostomum cutaneum, Tylodelphys sp., Diplostomum sp. and Bolbophorus sp.; a cestode: A. macracantha; and an acanthocephalan: Acanthogyrus