Internal Helminthes parasite Isolated from some cyprinid fish in Shapour River and Seyyed Hossein Spring

In this study, 38 fish in four species of Shapour River and Seyyed Hossein Spring were caught in 2016, including: Alburnus mossulensis(kuli), Cyprinion macrostomum(Lotak), Capoeta barroisi persica(Siah mahi) and Garra rufa (Doctor fish)and they were studied internal helminthes parasites. Totally, four parasites were isolated and recognized, including: two Digenea (Allocreadium sp. and Haplorchis sp.),one Cectoda (Bothriocephalus sp.),one Nematoda (Rhabdochona sp.)The results showed that the highest percent of parasitic infection was for Allocreadium sp. and the least amount was reported for Haplorchis sp. Moreover, kuli and Siah mahi had the highest and lowest percent of parasitic infection, respectively. There wasn’t any meaningful relationship between fish species and frequency of infection (P>0/05). However significant relationship was detected between sex and frequency of infection (P≤0/05).