FEATURES OF THE DISTRIBUTION OF THREE SPECIES OF FISH TREMATODES IN THE PAVLODAR REGION OF KAZAKHSTAN

摘要

The aim of the study is to determine the distribution of three species of fish trematodes in the Pavlodar region, as well as features of infection of definitive hosts and their parasitological analysis. The prospect of studying the fish trematode fauna of the North-East Kazakhstan is relevant because this group of parasitic worms in their biology is connected by several groups of organisms that are intermediate, accessory and final hosts. 3 species of trematodes were identified: Azygia lucii, Bunodera luciopercae, Sphaerostomum bramae. The indicators of the invasion prevalence, abundance index, and the invasion intensity of fish of the examined species were analyzed. Analysis of the fauna of trematodes of the studied species shows a good state of intermediate hosts living in the Irtysh River and reservoirs associated with its water area.