Trade and biological characteristic of pike perch Sander lucioperca in the top part of Volga reach at Kuibyshev water basin

Trade, efficiency of reproduction, dimensional and age structure and growth of a pike perch in the top part of Volga reach at Kuibyshev water basin in 2005-2010 is considered. It is established that the general tendency of decrease in trade of a pike perch in the conditions of ecosystem of water basin destabilization, reduction of the average sizes, reductions of share of senior age fishes in catches and growth deterioration is observed.