Zooplankton quantitative indicators of typical floodplains waters of the mouth section of the Dnieper in the spring period

Abstract

The zooplankton grouping of lakes is quite sensitive to the conditions of existence and parameters of the aquatic environment. They play a particularly important role in lake ecosystems. Zooplankton organisms in lakes account for about 80% of the energy which assimilated by all aquatic animals. Therefore, the study of zooplankton quantitative indicators is an important stage of general hydroecological research in the region and one of the most characteristic indicators of the biotic richness of water masses.