Distribution of Eudiplozoon nipponicum (Monogenea, Diplozoidae) in farmed common carp (Cyprinus carpio, L. 1758) from aquaculture facilities in Macedonia

A total of 958 specimens of common carp from the most significant and larger cyprinid aquaculture facilities in Macedonia, including fish farms and reservoirs, were examined for parasitological investigations. Eudiplozoon nipponicum was found on gills in 121 specimens of common carp in spring, summer and autumn, with a prevalence of 10.67 %, and a mean intensity of 2.55. Our findings of E. nipponicum in common carp from aquaculture are first recorded in Macedonia.