The experience of algolization of the Ternopil reservoir (Ternopil Region, Ukraine)

Authors

Chvaliuk H.V.*, Hrubinko V.V.
Ternopil Volodymyr Hnatiuk National Ped. University, 2 Maksym Kryvonosa Str., Ternopil 46027, Ukraine

Section:

Applied Algology

Issue:

Vol. 36 No. 1 (2026)

Pages:

55-66

DOI:

https://doi.org/10.15407/alg36.01.055

Abstract

The article presents the first results of a study of the impact of algolization of the Ternopil reservoir by the Chlorella sp. microalgae strain, which was carried out in two stages in 2023. The introduction of chlorella was carried out by inoculum application in May and August. The dynamics of the abundance of Chlorella sp., which correlated with the temperature regime, has been studied. However, no clear impact on the taxonomic structure of phytoplankton has been noted. A decrease in the proportion of Cyanobacteria was noted at the second stage of algolization of the reservoir. Sustainable development of Chlorella sp. throughout the study period with maximum abundance rates in the period between two stages of algolization was established. At the same time, there was a decrease in the concentration of nitrates, an increase in the level of dissolved oxygen and an improvement in water quality indicators. The obtained results indicate the potential possibility of using the method of introduction of Chlorella sp. as a biological means of reducing the eutrophication load of water bodies.

Keywords:

anthropogenic press, chemical composition of water, eutrophication, microalgae, bioremediation, Chlorella sp. strain, algolization, Ternopil reservoir

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Citation

Chvaliuk H.V., Hrubinko V.V. 2026. The experience of algolization of the Ternopil reservoir (Ternopil Region, Ukraine). Algologia. 36(1): 55-66. https://doi.org/10.15407/alg36.01.055