Influence of Hydrological Factors on the Functioning of Hydrobiological Communities and Water Quality Assessment.

The paper examines the influence of seasonal ice and prevalent type of recharge on the formation and functioning of zoobenthos communities in the coastal shallow zone of water bodies located north of 35° N. It was revealed that in the coastal shallow zone, zoobenthos species do not form communities but are represented by seasonal ephemeral groups. These habitations reach the maximum species diversity and qualitative development in July. Recommendations are given on the frequency of zoobenthos sampling to determine the water quality and an ecological status of a water body. [ABSTRACT FROM AUTHOR]