SAPROBIOLOGICAL CHARACTERISTICS OF ALGAE IN RESIDUAL LAKES OF ANTHROPOGENIC ORIGIN
DOI:
https://doi.org/10.32782/1998-6475.2025.59.10Keywords:
planktonic indicator algae, saprobity index, phytoplankton, saprobiological characteristicAbstract
An assessment of the water environment quality of residual lakes formed on the site of the former cooling pond of the Chornobyl Nuclear Power Plant (ChNPP) was conducted. The research was carried out in the spring of 2024. To evaluate the saprobiological characteristics of the aquatic environment, algal indicator species were analyzed, and the saprobity index was calculated using the Pantle–Buck method as modified by Sládeček. In total, 159 algal indicator species representing seven algal divisions were identified. The taxonomic composition of the dominant groups was characterized as diatom–green, indicating the prevalence of Bacillariophyta and Chlorophyta. The saprobity index values indicate the predominance of the χ-o-saprobic zone and the β-mesosaprobic zone in most of the studied areas, which suggests satisfactory water environment quality. These results provide an important basis for monitoring the further dynamics of reservoir recovery within the Chornobyl Exclusion Zone and understanding the long-term ecological consequences of a hydrobiological nature.
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