S. A. Kurbatova

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Zooplankton community transformation in response to soft water acidification was studied in two experimental series using the microcosm method. The dynamics of total abundance, changes in the proportions of the main zooplankton groups, stability of the dominant complex, and species diversity were evaluated. Zooplankton population proved to decrease at all(More)
The influence of the submerged plants Ceratophyllum demersum L. and Elodea canadensis Michx. and the floating plant Hydrocharis morsus-ranae L. on the species composition and quantitative parameters of a zooplankton community was studied experimentally. Among submerged vegetation, the development of the predaceous calanid Heterocope saliens Lilljeborg was(More)
Changes in the structure of microperiphyton and zooplankton communities in the presence of hydrophytes Ceratophyllum demersum L. and Utricularia vulgaris L. have been studied. In experimental ecosystems with hydrophytes, the ratio of autotrophic to heterotrophic organisms and the abundance of Sarcomastigophora decreased while the number of infusorians in(More)
The effect of submersed hydrophyte Ceratophyllum demersum L. on the abundance of Daphnia longispina O.F. Müller has been studied. The experiments demonstrated that the hydrochemical characteristics in overgrowths of Ceratophyllum are within the limits of tolerance for D. longispina. The concentrations of waterborne phosphates, chlorophyll a, and bacterial(More)
An experimental study on the zooplankton community in the thickets of elodea Elodea canadensis Michx. of different densities (2, 4, and 8 g/L, wet weight/L) has been conducted. It is revealed that specific cationic composition and pH and sharp daily fluctuation of oxygen concentrations is a characteristic of the water in dense thickets of plants. Changes in(More)
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