SEASONAL DYNAMICS OF ACTIVE FLUORESCENCE PARAMETERS AS INDICATORS OF VARIABILITY IN PHYTOPLANKTON PHOTOSYNTHETIC ACTIVITY IN THE BALTIC SEA
- 作者: Borovkova K.1, Mosharov S.A.2, Gulev S.K.3
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隶属关系:
- Immanuel Kant Baltic Federal University
- Shirshov Institute of Oceanology
- Shirshov Institute of Oceanology, Russian Academy of Sciences
- 期: 卷 526, 编号 1 (2026)
- 栏目: GEOECOLOGY
- ##submission.dateSubmitted##: 29.08.2025
- ##submission.dateAccepted##: 13.10.2025
- ##submission.datePublished##: 16.10.2025
- URL: https://journal-vniispk.ru/2686-7397/article/view/307175
- ID: 307175
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详细
The seasonal dynamics of phytoplankton photosynthetic activity parameters, measured by the active chlorophyll “а” fluorescence method, were investigated for the first time. The parameters studied include the maximum quantum efficiency (Fv/Fm), the effective quantum yield (Y), the relative electron transport rate in photosystem II (rETR), and the maximum electron transport rate in photosystem II (rETRmax). Measurements were conducted from 2022 to 2025 at a carbonate supersite in the southeastern Baltic Sea. It was demonstrated that all parameters exhibit distinct seasonal patterns, reflecting different aspects of the efficiency of the phytoplankton photosynthetic apparatus. A high photosynthetic capacity of phytoplankton during the winter period was established. Furthermore, it was shown that in the context of the Baltic Sea, the rETR and Y parameters provide more informative indicators for seasonal assessment of phytoplankton under natural conditions within climate and ecological monitoring frameworks.
作者简介
Kristina Borovkova
Immanuel Kant Baltic Federal University
编辑信件的主要联系方式.
Email: kristina.borovkova.99@bk.ru
ORCID iD: 0009-0009-7810-2529
俄罗斯联邦
S. Mosharov
Shirshov Institute of Oceanology
Email: sampost@list.ru
Moscow, Russia
S. Gulev
Shirshov Institute of Oceanology, Russian Academy of Sciences
Email: gul@sail.msk.ru
Moscow, Russia
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