Determination of degree of influence of soil type number of pond on the example aquatic insect larvae the Volga delta

The article studies the number of benthic organisms in the Volga River delta by the example Damchikskiy site of Astrakhan State Nature Biosphere Reserve. In the selection of hydrobiological samples visually determined by various factors that influence the formation of benthic communities (flora, flow, ground). In this paper, an analysis is made of the degree of influence of various types on the bottom of the size and diversity of aquatic insect larvae.