Seasonal Variability of Plankton Production Parameters as the Basis for the Formation of Organic Matter Flow in the Southeastern Part of the Baltic Sea
The seasonal dynamics of production processes in the Baltic Sea are poorly studied. The aim of our research was to study the seasonal features of primary productivity (including the balance with bacterial production) and its redistribution in plankton in the southeastern part of the Baltic Sea in di...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/24/4099 |
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| author | Sergey A. Mosharov Irina V. Mosharova Olga A. Dmitrieva Anna S. Semenova Marina O. Ulyanova |
| author_facet | Sergey A. Mosharov Irina V. Mosharova Olga A. Dmitrieva Anna S. Semenova Marina O. Ulyanova |
| author_sort | Sergey A. Mosharov |
| collection | DOAJ |
| description | The seasonal dynamics of production processes in the Baltic Sea are poorly studied. The aim of our research was to study the seasonal features of primary productivity (including the balance with bacterial production) and its redistribution in plankton in the southeastern part of the Baltic Sea in different seasons. More than 70% of primary production is formed in the 0–10 m layer (74–97% of the PP in the euphotic layer). In the same layer, PP accounted for almost 100% of the sum of primary and bacterial production in April and October, and almost 60% in June. Photosynthetic efficiency (PP/rETR) increased in June and October, demonstrating an increase in phytoplankton utilization of absorbed light energy. The depth-integrated values of PP, Chl <i>a</i>, bacterial, and phytoplankton biomasses were maximal in October. The maximum values of zooplankton biomass were determined in June, and they were significantly (5–14 times) higher than in other seasons. The maximum values of bacterial production were also in June. |
| first_indexed | 2024-03-09T15:43:42Z |
| format | Article |
| id | doaj.art-4a99f8b6202f435580f8d1b3e871cf7c |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T15:43:42Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-4a99f8b6202f435580f8d1b3e871cf7c2023-11-24T18:42:53ZengMDPI AGWater2073-44412022-12-011424409910.3390/w14244099Seasonal Variability of Plankton Production Parameters as the Basis for the Formation of Organic Matter Flow in the Southeastern Part of the Baltic SeaSergey A. Mosharov0Irina V. Mosharova1Olga A. Dmitrieva2Anna S. Semenova3Marina O. Ulyanova4Shirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaScientific and Educational Center “Geoecology and Marine Resource Management”, Immanuel Kant Baltic Federal University, 236041 Kaliningrad, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaThe seasonal dynamics of production processes in the Baltic Sea are poorly studied. The aim of our research was to study the seasonal features of primary productivity (including the balance with bacterial production) and its redistribution in plankton in the southeastern part of the Baltic Sea in different seasons. More than 70% of primary production is formed in the 0–10 m layer (74–97% of the PP in the euphotic layer). In the same layer, PP accounted for almost 100% of the sum of primary and bacterial production in April and October, and almost 60% in June. Photosynthetic efficiency (PP/rETR) increased in June and October, demonstrating an increase in phytoplankton utilization of absorbed light energy. The depth-integrated values of PP, Chl <i>a</i>, bacterial, and phytoplankton biomasses were maximal in October. The maximum values of zooplankton biomass were determined in June, and they were significantly (5–14 times) higher than in other seasons. The maximum values of bacterial production were also in June.https://www.mdpi.com/2073-4441/14/24/4099primary productionbacterial productionactive fluorescence of chlorophyllphytoplankton photosynthetic efficiencyphytoplanktonzooplankton |
| spellingShingle | Sergey A. Mosharov Irina V. Mosharova Olga A. Dmitrieva Anna S. Semenova Marina O. Ulyanova Seasonal Variability of Plankton Production Parameters as the Basis for the Formation of Organic Matter Flow in the Southeastern Part of the Baltic Sea Water primary production bacterial production active fluorescence of chlorophyll phytoplankton photosynthetic efficiency phytoplankton zooplankton |
| title | Seasonal Variability of Plankton Production Parameters as the Basis for the Formation of Organic Matter Flow in the Southeastern Part of the Baltic Sea |
| title_full | Seasonal Variability of Plankton Production Parameters as the Basis for the Formation of Organic Matter Flow in the Southeastern Part of the Baltic Sea |
| title_fullStr | Seasonal Variability of Plankton Production Parameters as the Basis for the Formation of Organic Matter Flow in the Southeastern Part of the Baltic Sea |
| title_full_unstemmed | Seasonal Variability of Plankton Production Parameters as the Basis for the Formation of Organic Matter Flow in the Southeastern Part of the Baltic Sea |
| title_short | Seasonal Variability of Plankton Production Parameters as the Basis for the Formation of Organic Matter Flow in the Southeastern Part of the Baltic Sea |
| title_sort | seasonal variability of plankton production parameters as the basis for the formation of organic matter flow in the southeastern part of the baltic sea |
| topic | primary production bacterial production active fluorescence of chlorophyll phytoplankton photosynthetic efficiency phytoplankton zooplankton |
| url | https://www.mdpi.com/2073-4441/14/24/4099 |
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