Fish composition and diversity assessment of Apodu reservoir, Malete, Nigeria

The pilot study on fish composition and diversity of Apodu reservoir, Malete, Nigeria was carried out
between January to May 2017 using cast and gill net. A total number of 3333 fish, comprising 8 families
and 17 species were recorded. Brycinus nurse were most dominant for the period of study contributing
29.31% and Auchenoglanis occidentalis, least abundant made up of 0.03% of total catch. Other families
and there percentage contribution in the total catch were Mormyridae (34.14%); Cichlidae (15.24%);
Mochokidae (14.01%); Clariidae (6.84%); Protopteridae (0.21%) and Clupeidae (0.21%). The range of
physico-chemical parameters of the water body were: temperature (24.1oC-29.8oC); dissolved oxygen
(4.4mg/l-6.00mg/l); conductivity (84.7µs/cm-105µs/cm); pH (6.63-7.97); transparency (125.7cm-
191.3cm) and total dissolved solids (42ppm - 69.7ppm). All values were within the limits for fish
tolerance, survival and production. This establishes the species composition of the reservoir and
management strategy for sustainability and conservation were suggested