Feeding pike-perch (Sander lucioperca (L, 1758)) central part of the Kuibyshev reservoir in various seasons of the year

The article presents the results of a study of the feeding of pike-perch in the central part of the Kuibyshev reservoir in different seasons of the year at the present stage of the reservoir’s existence in comparison with that in the 70s of the last century. It is revealed that at present the food spectrum of pike-perch in the reservoir differs significantly from its feeding in the second half of the last century by the change in species composition, biomass and the number of food objects. Today, the pike-perch in the pond serves as a biomeliorator and controls the abundance of not only fish species that penetrate the reservoir, but also its own young.