25 July 2025

Expedition to the Vazuza Reservoir

From July 14 to 18, specialists from the Upper Volga Department and the laboratory of aquatic biological resources of the freshwater fisheries branch of the Russian State Research Center of Fisheries and Oceanography (VNIRO) carried out a series of scientific activities at the Vazuzskoye Reservoir, located in the Tver and Smolensk regions.
 
The specialists carried out work on collecting ichthyological material, collecting hydrochemical samples for water quality analysis, studying aquatic organisms - representatives of zooplankton and zoobenthos, and also assessed the state of the microbiological situation by collecting samples for bacteriology.
 
In addition, measurements of the most important characteristics of the reservoir were taken: water temperature, dissolved oxygen content, depth and transparency.
 
As a result of the research, it was established that the quality of the water, as well as flora and fauna, meets all standards.
 
Such events help to better understand the distribution, abundance and quality of life of the reservoir's ichthyofauna, identify the features of the hydrochemical regime and determine the composition of the fish food supply.
 
VNIRO Press Service