Published in Scientific Papers. Series D. Animal Science, Vol. LXIV, Issue 2
Written by Radoslava ZAHARIEVA, Diana KIRIN
In the spring of 2020, ecoparasitological studies were conducted on 30 specimens of common nase (Chondrostoma nasus (Linnaeus, 1758)) from the freshwater ecosystem Danube River near Kudelin village, northwestern Bulgaria. Two parasite species were determined. One species - Proteocephalus torulosus (Batsch, 1786), juvenile, belongs to the class Cestoda. The other one - Contracaecum sp., larvae, belongs to the class Nematoda. C. nasus is a new host for P. torulosus in the studied area. In the study, Contracaecum sp., larvae was a core parasite species (P% = 90.00) in the component community of C. nasus from the Danube River (Kudelin). For Contracaecum sp. larvae, the highest mean intensity (MI = 18.15) and the highest mean abundance (MA = 16.33) were found.
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