PreprintArticleVersion 1This version is not peer-reviewed
How Extreme Droughts Change the Impact of Eutrophic Reservoir on Its Outflow, with Special References to Planktonic Cyanobacteria and Their Secondary Metabolites?
Version 1
: Received: 11 October 2024 / Approved: 14 October 2024 / Online: 15 October 2024 (11:43:36 CEST)
How to cite:
Grabowska, M.; Mazur-Marzec, H.; Więcko, A. How Extreme Droughts Change the Impact of Eutrophic Reservoir on Its Outflow, with Special References to Planktonic Cyanobacteria and Their Secondary Metabolites?. Preprints2024, 2024101003. https://doi.org/10.20944/preprints202410.1003.v1
Grabowska, M.; Mazur-Marzec, H.; Więcko, A. How Extreme Droughts Change the Impact of Eutrophic Reservoir on Its Outflow, with Special References to Planktonic Cyanobacteria and Their Secondary Metabolites?. Preprints 2024, 2024101003. https://doi.org/10.20944/preprints202410.1003.v1
Grabowska, M.; Mazur-Marzec, H.; Więcko, A. How Extreme Droughts Change the Impact of Eutrophic Reservoir on Its Outflow, with Special References to Planktonic Cyanobacteria and Their Secondary Metabolites?. Preprints2024, 2024101003. https://doi.org/10.20944/preprints202410.1003.v1
APA Style
Grabowska, M., Mazur-Marzec, H., & Więcko, A. (2024). How Extreme Droughts Change the Impact of Eutrophic Reservoir on Its Outflow, with Special References to Planktonic Cyanobacteria and Their Secondary Metabolites?. Preprints. https://doi.org/10.20944/preprints202410.1003.v1
Chicago/Turabian Style
Grabowska, M., Hanna Mazur-Marzec and Adam Więcko. 2024 "How Extreme Droughts Change the Impact of Eutrophic Reservoir on Its Outflow, with Special References to Planktonic Cyanobacteria and Their Secondary Metabolites?" Preprints. https://doi.org/10.20944/preprints202410.1003.v1
Abstract
Increasingly frequent weather extremes induce changes in the quantity and quality of surface waters, which significantly complicates their use and management of their resources. The above problems concern in particular dam reservoirs, created to ensure good quality water for numerous recipients. Impact of extreme drought in lowland eutrophic reservoir-river system is still poorly understood. Our studies were focused on average and high water levels in the reservoir and outflowing river. These studies conducted during three extreme drought periods showed the dominance of toxic cyanobacteria in the phytoplankton of the reservoir and its outflow. During the drought periods, a change in the dominant cyanobacteria was observed from Planktothrix agardhii to Microcystis spp., which resulted in a change in oligopeptides profile, including toxic microcystins. The negative pressure of the strongly eutrophic reservoir on downstream river, due to release of a large biomass of cyanobacteria, was positively correlated with reservoir outflow.
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
