Age dynamics of the infection of young carp fish by parasitic organisms in the Volga-Caspian Region

The paper presents data on parasite fauna of young bream Abramis brama (Linnaeus, 1758) and the roach Rutilus caspicus (Yakovlev, 1870) from the Volga delta and the Northern Caspian. It was found that the parasite fauna of young carp fish between the ages of larvae to the two-year was presented organisms belonging to the six taxonomic groups, and consisted of more than 14 species. Overall, the studies showed a severe age dynamics infestation of young bream and roach parasitic organisms associated primarily with the transition from the river to the sea lifestyle surveyed age groups of carp fish