Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

Results of Biomonitoring of Cooling Ponds at the Kalinin Nuclear Power Plant

12/20/2024 2024 - #04 Environmental aspects of nuclear power

Suvorova S.Y. Rasskazova M.M. Komarova L.N. Andreychuk S.D. Pyatov V.S. Ulyashova A.A. Sherova A.D.

DOI: https://doi.org/10.26583/npe.2024.4.09

UDC: 57.047

he purpose of the study was to assess the state of environment in the lakes Udomlya and Pes’vo used as cooling ponds by the Kalinin NPP. The species diversity of the higher aquatic and coastal vegetation and the macrozoobenthos community was analyzed, based on which water was assessed using the saprobic method in terms of the trophic level, the pollution level and the species diversity with the use of the Shannon Diversity Index. The study was undertaken to explore the habitat of the Dreissena polymorpha fouling species, which is the major source for biofouling at the Kalinin NPP, as well as for further development of biofouling control measures. When modernizing measures aiming to prevent biofouling in the NPP water supply systems, it is necessary to preserve the ecological balance with which the stability of the cooling pond environment will not be disturbed. Understanding the processes and biological connections in the fouling species habitat will make it possible to act on their population in such a way that the abundance and nutritive base of the Dreissena polymorpha mollusk species are affected on rather than exterminated. The study also presents the results of investigating the species distribution by the water body depth levels and depending on the morphometric indicators of the population. The results obtained show that the cooling ponds environment is characterized as stable with a moderate species diversity, the preferred substrate for attachment is stony ground, the largest number of Dreissena species was found in the coastal area, and the mollusk population as such is characterized by a high intensity of the reproduction and distribution over the lakes cape.

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environmental monitoring cooling ponds Kalinin NPP macrophytes periphyton bivalves Dreissena polymorpha

Link for citing the article: Suvorova S.Y., Rasskazova M.M., Komarova L.N., Andreychuk S.D., Pyatov V.S., Ulyashova A.A., Sherova A.D. Results of Biomonitoring of Cooling Ponds at the Kalinin Nuclear Power Plant. Izvestiya vuzov. Yadernaya Energetika. 2024, no. 4, pp. 104-116; DOI: https://doi.org/10.26583/npe.2024.4.09 (in Russian).