Optimization of lake ecosystems exploitation

Rational use of water resources at their active exploitation is one of the important questions of preservation of natural ecosystems. The control and selection of a specific compound of fishes over their cultivation in polyculture promotes the directed formation and an effective utilization of a natural food reserve of a reservoir. Reconstruction of fish fauna allows to solve problems of extirpation with water vwgwtation over-growth in reservoirs, to create optimum conditions for development of organisms of all feeding levels. Determining factors of ecosystem change in a concrete reservoir are value of fish fauna and productive opportunities, the special role thus is allocated to consuments of first and second order. At stocking with fish lakes it is necessary to aspire to the minimal reorganization in trophic system.