Population-specific features of the distribution of fish parasites of the Oka Basin
The work on the study of fish parasites in the Ryazan Province began in 2011. Currently, not enough disclosed features of the propagation of parasites of different species and their interaction in the system “fish - parasites”. The method of complete parasitological dissection at K.I. Scriabin was used. The large number of shellfish in the surveyed ponds of Oka Basin determines the prevalence in the parasite fauna of fish trematodes Diplostomum spathaceum, Posthodiplostomum brevicaudatum, Opisthorchis felineus and others. Contamination of some representatives of the fish fauna of these or other species of parasites due to the environmental conditions of water bodies, as well as the nature of the diet of fish of different ages.