摘要

The structural characteristics of phytophilous complexes of aquatic invertebrates, the intensity of their development, species diversity, and their biotic indices were investigated. Comparison of the studied indices with retrospective data, and also with material of original preliminary investigations, has shown that hydrotechnical construction adversely influences the development of cenoses, which manifests itself in the decrease of the number of their species, of their total numbers and biomass, and also in the decrease in the absolute values of biotic indices.