Detection of parasitic nematodes in some fresh water fishes in khazir river in Ninevah governorate

A total of 200 freshwater fishes belonging to 7 species include, ALburnus capito, Barbus gryous, B. xanthopterus, Chondrostoma regius, Varcorhinus trutta and Liza abu, were collected form Al-Khazir river, Ninevah governorate (about 37 Km east of Mosul city), during the period from October 2006 to April 2007. All fishes were inspected for detection of nematode worms. The study reveals presence of 12 fishes infected with nematode worms, from the total fishes inspected with the prevalence of 6%. In this study also recorded 10 species of nematodes infecting freshwater fishes 3 genera of them recorded for the first time in Iraq are Raphidscaris sp., Anisakis sp. and Eustrongylides sp. in addition to the species Cucullanellus minutus, and Rhabdochona khazirensis as new species.