Changes in the value of the Volga-Sviyazhsky area for fish reproduction the largest reservoir in Europe - the Kuibyshev reservoir

To estimate the current significance of area for fish breeding, species composition and abundance young-of-the-year coastal zone Volga-Sviyazhsky Volga stretch Kuibyshev reservoir 2021, 2022 were considered. The work to assess young was carried out at 7 stations, depths less than 2 meters. number calculated per unit effort fingerling seine. Species diversity assessed using Shannon-Weaver index. Young 23 identified, which confirms reproduction these in study area. Observational data are compared with earlier materials from 1993-2020. A trend towards an increase relative fish, mainly due low-value species, noted. At same time, 2022, a relatively high young, main commercial reservoir, bream, revealed.