The helminth fauna of Pontic shad (Alosa Immacculata Bennet, 1835) from lower Dniester

In this study 60 specimens of Pontic were caught from lower Dniester, Stefan Voda district, Olănesti. As a result of the parasitological study of Pontic shad, three species of helminths were detected: Pronoprymna ventricosa (Rudolphi, 1819) Poche, 1926, Lecithasther confusus Odhner, 1905), Hysterothylacium aduncum (Rudolphi, 1802). The degree of infestation with these species was different. The most abundant species was Hysterothylacium aduncum with an extensivity of invasion of 85% and intensivity of invasion 1 – 80 parasites per fish, followed by Pronoprymna ventricosa (EI-20%, II-2-18 ex.) and Lecythaster confusus (EI-7,8%, II-1-12 ex.).