GEORGE ERINYANGA SOLOMON

Parasitic contamination in aquaculture systems poses significant threats to both fish health and public safety, particularly in developing countries where food security depends heavily on freshwater fish production. This study aimed to assess the prevalence of parasitic contamination in fish ponds across Benin City, Edo State, Nigeria, and evaluate the associated public health implications. A total of 50 water samples were collected from fish ponds across three local government areas: Ikpoba Okha (n=17), Ovia North East (n=16), and Oredo (n=17). Water samples were analyzed using direct microscopy, flotation, and sedimentation techniques to identify parasitic stages including eggs, larvae, and cysts. Key findings revealed a high overall prevalence of parasitic contamination at 54.0% across all examined ponds. Ascaris lumbricoides ova were the most frequently detected parasites
(44.0%), followed by Strongyloides stercoralis larvae (30.0%), Cryptosporidium parvum cysts (18.0%), and Schistosoma haematobium ova (8.0%). The highest contamination rates were observed in Ikpoba Okha (64.7%), followed by Oredo (52.9%) and Ovia North East (43.8%), though statistical analysis revealed no significant association between local government areas and contamination prevalence (p = 0.480). The majority of ponds (26%) harbored single parasites, while 4% contained four different parasitic species. The identification of zoonotic parasites with confirmed human health implications underscores the urgent need for improved aquaculture management practices, enhanced biosecurity measures, and comprehensive surveillance programs. These findings emphasize the necessity for integrated public health initiatives aimed at reducing parasitic transmission risks through
improved pond management, proper fish processing techniques, and consumer education programs to safeguard community health in Benin City