The Influence of Age-Related Changes on the Parasite Fauna of Silver Carp (Hypophthalmichthys Molitrix Val., 1844)

The article analyzes the changes in the parasitic fauna of the silver carp depending on its age.Studying the morphometric dimensions of the silver carp and conducting studies on its impact on the parasitic fauna allows us to track the development of diseases in their hosts.As a result of the studies, six species of parasites belonging to different taxonomic groups were recorded in the fish.The fish were conditionally divided into three groups according to age: the +1 group (body size up to 10 cm), the +2 group (between 10 and 20 cm), and the +3 group (greater than 20 cm).It was found that a small number of parasite species are observed in the +1 groups of fish.They are mainly infected with parasites that lack an intermediate host.As they grow, they are infected with new parasites.In terms of species, the most infections (five species) are observed in fish of the third age group.A decrease in fullness is observed in fish that are more infected with trematode larvae.