Prevalence and intensity of parasitic fauna of selected fish species of river Taraba at Tella, Nigeria

Fish are exposed to various contaminants and environmental stressors in aquatic environments, making them susceptible to parasitic infections. This study aimed to assess the prevalence and intensity of parasitic infections in selected fish species of Taraba River at Tella, Nigeria. A total of 220 specimens of O. niloticus, C. gariepinus, S. clarias, and S. nigrita of varying lengths and weights were randomly collected from fishermen at different landing sites along the Taraba River between January and June 2024. Standard parasitological techniques were used in the study. The fish samples were examined, dissected, and the parasites were removed, identified, and counted. A total of six parasite species from eight genera were collected from the study area, with an overall parasite prevalence rate of 27.7. The study suggests that high levels of pollution can sustain parasite loads, which may impair fish performance and production. Therefore, pollution control and regular monitoring of water bodies should be encouraged.