Hydrological and hydrochemical characteristics of lake Manych-Gudilo water
Scientific research works on studying the processes taking place in the Manych reservoirs are aimed not only at obtaining new scientific knowledge, but also assessing the impact of these changes on the species diversity dynamics and the structural and functional organization of communities of hydrobionts and semi-aquatic fauna, as well as developing measures for optimization of water-salt balance, ecological conditions of the Manych Cascade reservoirs bioresources conservation and reproduction. Information on the current mineralization and the ionic composition state of the Proletarian Reservoir waters is important to understand their origin, the possibility of using them for economic purposes, assessing their transformation, and their influence on the environment and biota. It was found that the total mineralization in the surveyed water area in the period of autumn observations remains at a high level (45 g / l), as in 2010 and 2011. (42.7 and 42.6 respectively). The waters at most stations were attributed to brines, the most western station - to the waters of high salinity. Class of waters is chloride, sodium group, type II. The observed lateral gradient of salinity in the surveyed section of the Proletarian Reservoir is the process of mixing waters with different salinity. The data obtained from expeditionary studies served as the basis for a database on the Proletarian Reservoir (Lake Manych-Gudilo) ecosystem state.