This research study assessed fish diversity and catch assessment of Jebba Lake, Nigeria for a period of five (5) months between March 2018 and August 2018. Four thousand, one hundred and eighty two (4,182) individual fish, which comprised of sixteen (16) species belonging to fourteen (14) families were recorded in the lake. The families Clariidae and Mochokidae were the most diverse with two (2) species. Cichlidae was dominant with Oreochromis niloticus as the most abundant species. There was low fish diversity in the lake. Diversity indices showed that upstream was the richest in diversity while downstream was the poorest. Midstream had the highest fish taxa while Downstream was lowest and there was uneven fish population at these locations. Bulk of the fish caught was from downstream and lowest at upstream. Oreochromis niloticus, which is a Cichlid was recorded highest at upstream and midstream and downstream. Monthly fish catch revealed highest catch at downstream in March, April and June and at midstream in May and July on the overall. It is recommended that similar study should be done for the remaining months, continuous monitoring of the fishery should be taken seriously, there is also need to monitor the activities of fishermen as well as organize workshop on management for them and the findings of this study could be used as baseline information for further research work in the lake and even other water bodies.
Keywords:- Fishery Diversity, Oreochromis niloticus, fish species, Jebba Lake, Nigeria
* Correspondence Author