Release of sterlet (lat. Acipenser ruthenus) in the Kuibyshev reservoir is an important task for the development of aquaculture

Abstract

The development of hydropower and the creation of reservoirs of the Volga cascade had an impact on the state of populations of sturgeon species of fish, while creating incentives for improving the biotechnology of their reproduction and cultivation. This period is characterized by the desire and technical and technological capabilities to restore the number of sterlet in the Kuibyshev reservoir. Release of sterlet can be conducted not only in the vicinity of potential spawning grounds, but also in the feeding areas. Taking into account the possibilities of long-term development of the Kuibyshev reservoir with the directed formation of ichthyofauna and planning of sterlet catches in the volume of 480 tons, annual releases of juveniles with a mass of 3 g in the amount of 57 million pieces are required. The analysis shows the need to organize significant production of sterlet juveniles for stocking the Kuibyshev Reservoir.