Structural-functional organization of littoral zooplankton community of the upper Kremenchug reservoir in the territory of Kaniv nature reserve

Z. Burian, V. Gandziura, V. Trokhymets
ESС "Institute of Biology and Medicine", Taras Shevchenko Kyiv National University, Kyiv,; ESС "Institute of Biology and Medicine", Taras Shevchenko Kyiv National University, Kyiv,; ESС "Institute of Biology and Medicine", Taras Shevchenko Kyiv National University, Kyiv,


The analysis results of the structural-functional organization of littoral zooplankton community of the upper Kremenchug Reservoir in the territory of Kaniv Nature Reserve during the summer of 2015 are presented. Diversity of zooplankton was presented with 34 species: Monogononta rotifers, cladocerans, copepods. The rotatoria-cladoceran zooplankton complex dominated in the taxonomic composition. Zhakkara dominant index for the comparison of the dominant species complexes was used, and it was the low number of similarities within the various biotopes of the six research stations (J = 7,1-28,6). This can be explained by the formation of higher aquatic plants.This led to the formation of specific zooplankton groups in overgrown biotopes.The ecological spectrum of the different groups of the upper Kremenchug Reservoir littoral zooplankton in the summer was characterized by the predominance of the phytophilic groups: phytophilic – 18 species (53 % of all zooplankton species). Depending on the feeding type the largest part was made by the peaceful group – 73,3 % (25 species). Summer littoral zooplankton in quantitative terms was characterized by very low development in both biotopes. Its density varied within 4077± 2098 ind./m³ and biomass 0,07 ± 0,04 g/m for overgrown biotopes, and 4123 ± 3929 ind./m³ and 0,054 ± 0,038 g/m³ for freshwater ones. Among the quantitative indicators, the species of Copepoda dominated, what was associated with the development of their larval stages (Nauplia, Сalanoida juv., Cyclopoida juv.) in the summer period.


Littoral zooplankton, structural-functional organization, Kremenchug Reservoir, Ukraine

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Received: 03.04.2018

Revision: 11.05.2018

Signed for publication: 11.05.2018



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