Abstract
In aquaculture, the efficiency of fish cultivation depends on the quality of water, its hydrochemical and microbiological indicators. Research in this area is short and insufficient. It is necessary to conduct a comprehensive study of water quality in various fish farming zones of the Russian Federation, including all the factors of pollution and self-purification of ponds, to prevent the transition of intensively used ponds to the category of hypereutrophic, to create conditions that stimulate the process of self-purification of water. The authors of this article studied the role of organisms that live in fresh and salty water for self-purification of ponds and the impact of fish-breeding processes on the hydrochemical and microbiological regime of water in fish farming, determined the water quality in the growing ponds of the branch of FSUE Natsrybresurs «Teplovsky Fish Nursery» with mono and polyculture. The obtained results update the information about the influence of pond fish farming on the regime of water reservoirs, in the future they will allow to make changes and maintain the ratio and vital activity of hydrobionts in the biocenosis of fish ponds at best possible level.
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