Spatial distribution and photosynthetic activity of phytoplankton in the Rybinsk Reservoir in the summer period of 2018–2020
The spatial distribution of chlorophyll a (Chl a) and photosynthetic activity coefficient (PAC) of phytoplankton in the Rybinsk Reservoir was studied using fluorescent analysis in July–August 2018–2020. Under various hydrometeorological conditions, the content of Chl a varied as 0.26–116 μg/L, avera...
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| Format: | Article |
| Language: | English |
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Cherepovets State University
2023-06-01
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| Series: | Трансформация экосистем |
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| Online Access: | http://en.ecosysttrans.com/publikatsii/ecosystem-transformation-volume-6-no-2-2023/spatial-distribution-and-photosynthetic-activity-of-phytoplankton-in-the-rybinsk-reservoir-in-the-su/ |
| _version_ | 1827871689984180224 |
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| author | Ivan V. Semadeni |
| author_facet | Ivan V. Semadeni |
| author_sort | Ivan V. Semadeni |
| collection | DOAJ |
| description | The spatial distribution of chlorophyll a (Chl a) and photosynthetic activity coefficient (PAC) of phytoplankton in the Rybinsk Reservoir was studied using fluorescent analysis in July–August 2018–2020. Under various hydrometeorological conditions, the content of Chl a varied as 0.26–116 μg/L, averaging 16.7–21.2 μg/L. The spatial distribution of Chl a in 2019 was characterized by moderate patchiness, in 2018 and 2020, by highly pronounced randomity (coefficients of variation Cv = 69, 91, and 140%, respectively). The PAC varied from 0.01 to 0.58, averaging 0.30–0.42. PAC below 0.3 were noted in 8–47% of cases, reflecting the development of phytoplankton under stressful conditions. The spatial distribution of PAC was more uniform than that of Chl a (Cv = 18–130%). PAC depended on Chl a content non-linearly (R2 = 0.50). |
| first_indexed | 2024-03-12T16:13:25Z |
| format | Article |
| id | doaj.art-63f5ad6d2b364856ae9134cc8f99d635 |
| institution | Directory Open Access Journal |
| issn | 2619-0931 |
| language | English |
| last_indexed | 2024-03-12T16:13:25Z |
| publishDate | 2023-06-01 |
| publisher | Cherepovets State University |
| record_format | Article |
| series | Трансформация экосистем |
| spelling | doaj.art-63f5ad6d2b364856ae9134cc8f99d6352023-08-09T08:48:59ZengCherepovets State UniversityТрансформация экосистем2619-09312023-06-0162193210.23859/estr-220414Spatial distribution and photosynthetic activity of phytoplankton in the Rybinsk Reservoir in the summer period of 2018–2020Ivan V. Semadeni0https://orcid.org/0000-0003-2381-4587Papanin Institute for Biology of Inland Waters, Russian Academy of SciencesThe spatial distribution of chlorophyll a (Chl a) and photosynthetic activity coefficient (PAC) of phytoplankton in the Rybinsk Reservoir was studied using fluorescent analysis in July–August 2018–2020. Under various hydrometeorological conditions, the content of Chl a varied as 0.26–116 μg/L, averaging 16.7–21.2 μg/L. The spatial distribution of Chl a in 2019 was characterized by moderate patchiness, in 2018 and 2020, by highly pronounced randomity (coefficients of variation Cv = 69, 91, and 140%, respectively). The PAC varied from 0.01 to 0.58, averaging 0.30–0.42. PAC below 0.3 were noted in 8–47% of cases, reflecting the development of phytoplankton under stressful conditions. The spatial distribution of PAC was more uniform than that of Chl a (Cv = 18–130%). PAC depended on Chl a content non-linearly (R2 = 0.50).http://en.ecosysttrans.com/publikatsii/ecosystem-transformation-volume-6-no-2-2023/spatial-distribution-and-photosynthetic-activity-of-phytoplankton-in-the-rybinsk-reservoir-in-the-su/chlorophyllpacquantum yieldmonitoringfluorescenceupper volga riveralgocoenosis statepigments |
| spellingShingle | Ivan V. Semadeni Spatial distribution and photosynthetic activity of phytoplankton in the Rybinsk Reservoir in the summer period of 2018–2020 Трансформация экосистем chlorophyll pac quantum yield monitoring fluorescence upper volga river algocoenosis state pigments |
| title | Spatial distribution and photosynthetic activity of phytoplankton in the Rybinsk Reservoir in the summer period of 2018–2020 |
| title_full | Spatial distribution and photosynthetic activity of phytoplankton in the Rybinsk Reservoir in the summer period of 2018–2020 |
| title_fullStr | Spatial distribution and photosynthetic activity of phytoplankton in the Rybinsk Reservoir in the summer period of 2018–2020 |
| title_full_unstemmed | Spatial distribution and photosynthetic activity of phytoplankton in the Rybinsk Reservoir in the summer period of 2018–2020 |
| title_short | Spatial distribution and photosynthetic activity of phytoplankton in the Rybinsk Reservoir in the summer period of 2018–2020 |
| title_sort | spatial distribution and photosynthetic activity of phytoplankton in the rybinsk reservoir in the summer period of 2018 2020 |
| topic | chlorophyll pac quantum yield monitoring fluorescence upper volga river algocoenosis state pigments |
| url | http://en.ecosysttrans.com/publikatsii/ecosystem-transformation-volume-6-no-2-2023/spatial-distribution-and-photosynthetic-activity-of-phytoplankton-in-the-rybinsk-reservoir-in-the-su/ |
| work_keys_str_mv | AT ivanvsemadeni spatialdistributionandphotosyntheticactivityofphytoplanktonintherybinskreservoirinthesummerperiodof20182020 |