Preservation of a biological variety in reservoirs of the Volga delta and northern part of the Caspian Sea and way of management of the ecological safety

In work the rating of natural complexes of the Volga delta and northern part of the Caspian sea on two groups of criteria is given. The reasons of negative influence on a biological variety of the Volga-Caspian pool are considered. The measures on improvement of ecological conditions ecosystem of delta of the river of Volga and Northern part of the Caspian sea are offered.