Published in Scientific Papers. Series D. Animal Science, Vol. LXIII, Issue 2
Written by Mariya CHUNCHUKOVA, Diana KIRIN
During the summer of 2017, 10 specimens of freshwater bream (Abramis brama (Linnaeus, 1758)) from the Bulgarian part of the Lower Danube River were examined with standard techniques for parasites. Helminth parasites were recorded in 9 freshwater bream specimens (90.00%) from the Danube River. Five species of parasites were identified: one cestode species Caryophyllaeus laticeps (Pallas, 1781), two trematode species from family Monorchiidae (Asymphylodora imitans (Mühling, 1898); Palaeorchis incognitus (Szidat, 1943)), one acanthocephalan Pomphorhynchus laevis (Zoega in Müller, 1776) and one nematode species Rhabdochona denudata (Dujardin, 1845). All established helminth species are autogenic species, matured in fish. In the component community of Abramis brama from Danube River P. laevis, P. incognitus and R. denudata are core species. A. imitans and C. laticeps are component parasite species for the helminth communities of A. brama. The established in this study parasite species are discussed and compared with previous researches of parasite communities of A. brama from River Danube in Bulgaria. As a result of this study is presented new data for helminths and helminth communities of A. brama.
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