Assessment of Fish Fauna and Water Quality in Ogbaru River, Nigeria

This study evaluated fish diversity and water quality in the Ogbaru River, Nigeria. Fish samples were collected monthly from April to July 2023 at three stations, and multiple physicochemical parameters were measured. A total of 188 fish specimens were identified, representing 18 species and 6 families. Tilapia zilli was the most abundant species (13.3%), followed by Clarias gariepinus (11.7%). Variations in species abundance were observed among stations. The measured water quality parameters were within normal ranges. These findings provide baseline data for managing the river’s fishery resources.