Parasite Fauna of the Prespa Roach Rutilus prespensis (Karaman, 1924) (Cyprinidae) in Lake Prespa, Republic of North Macedonia

摘要

Eight out of the eleven indigenous fish species of Prespa Lake are endemic. One of these endemic fish species is Prespa roach Rutilus prespensis. The parasitological examination from the North-Macedonian part of the Lake Prespa showed that 175 specimens out of 183 examined specimens (95.63%) are infected with parasites. Fourteen parasite species were identified: three protozoans (Myxobolus cyprini, M. dispar and Chilodonella piscicola), three monogeneans (Dactylogyrus sphyrna, D. erhardovae and Paradiplozoon zeller), two trematodes (Nicolla testiobliquum and metacercariae of Posthodiplostomum cuticola), two cestodes (Caryophyllaeus laticeps and plerocercoids of Ligula intestinalis), two nematodes (Philometra ovata and larvae of Contracaecum microcephalum), one acanthocephalan (Metechinorhynchus truttae) and one crustacean (Ergasilus sieboldi). The most prevalent parasite species were Posthodiplostomum cuticola (84.70%), Ligula intestinalis (77.04%) and Dactylogyrus sphyrna (38.80%).