Author(s): Mehmet Oğuz Öztürk

Abstract: In this study, metacercariae of Tylodelphys sp. infection was examined in seven fish species viz. (Cyprinus carpio, Carassius gibelio, Barbus plebejus, Capoeta tinca, Chondrostoma nasus, Leuciscus cephalus, and Alburnus escherichii) through on-site surveys. Three host fish species were infected with metacercariae of Tylodelphys sp: (prevalence 5.1% and mean parasite number and standard deviation 67.5±92.6 in Chondrostoma nasus; 10.6%, 5.6±1.8 in Capoeta tinca; 12.5%, 2.5±2.1 in Barbus plebejus respectively). Infection data of the parasite species were evaluated for seasons, host fish size and sex. The period of the study covered the four seasons: spring, summer, autumn, winter. Occurrence of the infection of C. tinca was shown in all seasons. For the other two fish species, B. plebejus and C. nasus, occurrence of the infection was found only in winter. Host fish specimens were divided into mention size groups. It was recorded only in the second group of B. plebejus. In the other two fish species, C. nasus and C. tinca, occurrence of the parasite was found in the first and second groups. The infection achieved a maximum value in the first group for C. tinca and in the second for C. nasus. On the other hand, both the infection prevalence of the parasites achieved a maximum value in the male group of C. nasus and in the female group of C. tinca. Moreover, the metacercariae of Tylodelphys sp. was recorded for the first time in three host fishes, C. nasus, C. tinca, and B. plebejus in Turkey. Thus, a new locality has been added to the geographical spread of the metacercariae species.

Pages: 439-442  |  1281 Views  177 Downloads

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