A Study of Clinostomum (Trematode) and Contracaecum (Nematode) Parasites Affecting Oreochromis Niloticus in Small Abaya Lake, Silite Zone, Ethiopia

This study was conducted at Lake Small Abaya Ethiopia, to identify Clinostomum and Contracaecum parasites from a total of 384 O. niloticus species sampled during November 2013- April 2014. Of the 384 samples collected, 138 (35.9%) were infested with nematode of Contracaecum species and 72 (18.8%) were infected with trematode of Clinostomum species. The intensity of infestation by Contracaecum and Clinostomum was 1-19 worms per fish (mean...