Comparative Analysis of Ecophysiological Characteristics of Stephanodiscus hantzschii Grun. in the Periods of Its Bloom in Recreational Water Bodies |
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| Authors: | V. I. Kolmakov N. A. Gaevskii E. A. Ivanova O. P. Dubovskaya I. V. Gribovskaya E. S. Kravchuk |
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| Affiliation: | (1) Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia;(2) Krasnoyarsk State University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russia;(3) Krasnoyarsk State Agricultural University, pr. Mira 88, Krasnoyarsk, 660049, Russia |
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| Abstract: | In the periods of summer and autumn bloom of the Stephanodiscus hantzschii Crun. in recreational water bodies, studies on the vertical distribution of chlorophyll a, its contents per unit biomass, efficiency in using photosynthetically active radiation (EPhAR), and assimilative activity of microalgae were performed. The results confirmed the existence of two ecophysiological forms of St. hantzschii and provided evidence that both forms are typically autotrophic and can efficiently use low-intensity PhAR for photosynthesis. |
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| Keywords: | Stephanodiscus hantzschii Grun. chlorophyll a efficiency in using photosynthetically active radiation |
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