Ann. Limnol. - Int. J. Lim.
Volume 57, 2021
|Number of page(s)||7|
|Published online||21 September 2021|
Intermittent disturbance combined N and P adding favor colony size and abundance of Microcystis flos-aquae
School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
2 Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, PR China
3 Freshwater Fisheries Research Center, CAFS, Wuxi 214128, PR China
* Corresponding author: firstname.lastname@example.org
Accepted: 1 September 2021
Nutrients and disturbance are both important environmental factors in the freshwater ecosystem. Here we present data on the effects of intermittent disturbance (ID), nitrogen and phosphorus adding (+N+P), and intermittent disturbance combined N and P adding (ID+N+P) on colony size and abundance of Microcystis flos-aquae in lab experiments. Results showed that the mean colony sizes of M. flos-aquae in ID+N+P group were1.68, 1.56, 1.17 times that in the control, +N+P, ID groups, respectively. Moreover, the average number of M. flos-aquae in ID+N+P group were 1.47, 1.19, 1.42 times those in the control, +N+P, ID groups, respectively. The average concentration of EPS (extracellular polysaccharides) in ID and ID+N+P group was significantly higher than those in control and +N+P groups. Results demonstrated that intermittent disturbance combined N and P adding promoted colony size and abundance of M. flos-aquae. These results suggest that intermittent disturbance combined N and P adding plays an important role in the formation of Microcystis blooms in freshwater ecosystems.
Key words: Intermittent disturbance / phosphorus / nitrogen / Microcystis / EPS
© EDP Sciences, 2021
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.