SEASONAL CHANGES IN STOMACH CONTENT OF THREE FISH SPECIES, OREOCHROMIS NILOTICUS, AUCHENOGLANIS OCCIDENTALIS AND MORMYRUS RUME IN RIVER NIGER AXIS, ONITSHA, NIGERIA.
I.E. Iloghalu , V N. Arazu , K. N. Ibemenuga , N. P. Udeh , C. U. Ezechi and E. C. Nwanna