Abstract
6360 specimens/m 2 , and the biomass was 3.73 kg/m 2 (Perova, 2004). At the same time, the maximum abun� dance of zebra mussel in Lake Erie (United States) reached 700000 specimens/m 2 (Primak, 2002). An abrupt increase in the abundance of zebra mussel in water bodies can lead to changes in the trophic chains of ecosystems. Even a lower abundance of zebra mus� sel leads to the poor food supply of zooplankton; to changes in the structural and functional relationships in bacterial, phytoplankton, zooplankton, and benthic communities; and to changes in the food supply for fish and in the fish productivity of the water body. The rapid invasion of the zebra mussel in Europe and the United States stimulated intensive investigations into the potential effect that this organism may have on the resident components of water biotopes (Dgebuadze,
Published Version
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