Changes in Phytoplankton Community Composition and Phytoplankton Cell Size in Response to Nitrogen Availability Depend on Temperature
Dashkova V. Malashenkov D.V. Baishulakova A. Davidson T.A. Vorobjev I.A. Jeppesen E. Barteneva N.S.
July 2022MDPI
Microorganisms
2022#10Issue 7
The climate-driven changes in temperature, in combination with high inputs of nutrients through anthropogenic activities, significantly affect phytoplankton communities in shallow lakes. This study aimed to assess the effect of nutrients on the community composition, size distribution, and diversity of phytoplankton at three contrasting temperature regimes in phosphorus (P)–enriched mesocosms and with different nitrogen (N) availability imitating eutrophic environments. We applied imaging flow cytometry (IFC) to evaluate complex phytoplankton communities changes, particularly size of planktonic cells, biomass, and phytoplankton composition. We found that N enrichment led to the shift in the dominance from the bloom-forming cyanobacteria to the mixed-type blooming by cyanobacteria and green algae. Moreover, the N enrichment stimulated phytoplankton size increase in the high-temperature regime and led to phytoplankton size decrease in lower temperatures. A combination of high temperature and N enrichment resulted in the lowest phytoplankton diversity. Together these findings demonstrate that the net effect of N and P pollution on phytoplankton communities depends on the temperature conditions. These implications are important for forecasting future climate change impacts on the world’s shallow lake ecosystems.
biodiversity , biovolume , cell size , climate change , eutrophication , imaging flow cytometry , mesocosm , nitrogen pollution , phytoplankton , temperature
Text of the article Перейти на текст статьи
School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 00010, Kazakhstan
School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, 00010, Kazakhstan
National Laboratory Astana, Nur-Sultan, 00010, Kazakhstan
Department of Ecoscience, Aarhus University Center for Water Technology (WATEC), Aarhus, 8000, Denmark
Sino-Danish Centre for Education and Research, Beijing, 100049, China
Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, 06800, Turkey
Institute of Marine Sciences, Middle East Technical University, Mersin, Erdemli, 33731, Turkey
The Environment & Resource Efficiency Cluster, Nazarbayev University, Nur-Sultan, 00010, Kazakhstan
School of Engineering and Digital Sciences
School of Sciences and Humanities
National Laboratory Astana
Department of Ecoscience
Sino-Danish Centre for Education and Research
Limnology Laboratory
Institute of Marine Sciences
The Environment & Resource Efficiency Cluster
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026