PARASITIC INCIDENCE OBSERVED IN Oreochromis niloticus AT THE FISHERIES UNIT OF NIGER DELTA UNIVERSITY TEACHING AND RESEARCH FARM

Parasites of Orechromisniloticus was studied at the Teaching and Research Farm of the Niger Delta University. The prevalence, abundance and intensity of infection were determined. The  prevalence of Dactylogyrusparasitae in Oreochromisniloticus showed the highest value of 65%, followed by Cestode, ligula 60%, Ergasilus 10% and Protozoa and Nematode 1.66% with the least prevalence. The intensity of Dactylogyrusobtained was 2.79,while Cestode,( ligula)had 1.10,, Ergasilusspp 1.33, Protozoa and Nematode 1and 2 respectively.