Ekaterina Mikhailovna conducted for the first time a long–term analysis (for 2012-2023) of the composition and structure of zooplankton of the largest water bodies in the Perm Region - the Kama and Votkinsk reservoirs.
The revision of the species composition of crustaceans and rotifers was performed, the dynamics of qualitative and quantitative characteristics of planktonic invertebrates was studied. 19 new species have been identified for the Kama and 20 for the Votkinsk reservoirs, which significantly expands the understanding of the biodiversity of reservoirs in the Perm Region. The dates and routes of entry of 11 invading species have been established, seven of which were not registered in the Kama and Votkinsk reservoirs until 2012. Their role in the formation of the modern zooplankton structure is analyzed. For the first time, the settlement of the Ponto-Caspian Cladocera Cercopagis pengoi to the north along the Kama River and the American rotifer Kellicottia bostoniensis to the east into the Kama reservoirs has been confirmed. The patterns of spatial distribution of zooplankton along the longitudinal profile of reservoirs related to their morphology and hydrological regime have been revealed. A significant 2.5-3.0-fold increase in zooplankton biomass over the past decade has been found, correlating with an increase in water temperature. The transformation of the dominant zooplankton complex over an almost 50-year period of observations is shown, expressed in the consolidation of Daphnia galeata as a component of the Cladocera community and an increase in the proportion of thermophilic paddle crustacean Thermocyclops crassus.
The VNIRO team sincerely congratulates Ekaterina Mikhailovna on her successful defense and wishes her further success in science!
VNIRO Press Service
