DYNAMICS OF FORMATION CONDITIONS OF PRIMARY ELEMENTS IN THE NORTHERN AND MIDDLE PARTS OF THE СASPIAN SEA

Abstract

An attempt to analyze the degree of the Volga flow influence on the conditions of biogenic elements in the Northern and Middle parts of the sea has been made. The goal is to reveal the formation mechanism of the biogenic substances conditions and the reasons of long-term changes of hydrochemical conditions of waters on the northwest shelf on the basis of available literary and fund data. For this purpose the whole period of observations has been divided into the intervals with various water levels in the Volga and in the sea.

Keywords

• the caspian sea
• the volga flow
• sea level
• biogenic substances
• hydrochemical conditions