The biomass of bloom-forming colonial Microcystis affects its response to aeration disturbance
Abstract The algal succession in Microcystis blooms of varying biomass under continuous aeration was studied in a greenhouse. There were four treatments (control, Low, Medium, and High) with initial chlorophyll a (Chl-a) of 32.5, 346.8, 1413.7, and 14,250.0 μg L−1, respectively. During the experimen...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-12-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-25017-4 |
| _version_ | 1828169775651487744 |
|---|---|
| author | Xiaodong Wang Xingguo Liu Boqiang Qin Xiangming Tang Xuan Che Yanqing Ding Zhaojun Gu |
| author_facet | Xiaodong Wang Xingguo Liu Boqiang Qin Xiangming Tang Xuan Che Yanqing Ding Zhaojun Gu |
| author_sort | Xiaodong Wang |
| collection | DOAJ |
| description | Abstract The algal succession in Microcystis blooms of varying biomass under continuous aeration was studied in a greenhouse. There were four treatments (control, Low, Medium, and High) with initial chlorophyll a (Chl-a) of 32.5, 346.8, 1413.7, and 14,250.0 μg L−1, respectively. During the experiment, Cyanophyta biomass was the lowest in the Medium treatment (P < 0.05), while its Chlorophyta biomass was the highest (P < 0.05). Both Chlorophyta and Bacillariophyta biomass were the lowest in the High treatment (P < 0.05). Bacillariophyta biomass, particularly the diatom Nitzschia palea was the highest in the Low treatment (P < 0.05), and Nitzschia palea cells were attached to the Microcystis colonies. Thus, the algal shift in Microcystis blooms under aeration disturbance depends on its initial biomass, and it shift to green algae or/and diatom dominance in the control, Low, Medium treatments. Diatom cells, particularly N. palea, grew in an attached form on Microcystis colonies in treatment Low, in which the colonies provided media for the adherence. The mechanism of the algal shift with different biomass must be related to the nutrient level, low light and aerobic conditions under aeration disturbance as well as the aeration itself, which destroyed the Microcystis colonies’ advantage of floating on the water. |
| first_indexed | 2024-04-12T02:57:48Z |
| format | Article |
| id | doaj.art-ed735c30425e4904830bb2bcc995a366 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T02:57:48Z |
| publishDate | 2022-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-ed735c30425e4904830bb2bcc995a3662022-12-22T03:50:46ZengNature PortfolioScientific Reports2045-23222022-12-0112111110.1038/s41598-022-25017-4The biomass of bloom-forming colonial Microcystis affects its response to aeration disturbanceXiaodong Wang0Xingguo Liu1Boqiang Qin2Xiangming Tang3Xuan Che4Yanqing Ding5Zhaojun Gu6Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery SciencesFishery Machinery and Instrument Research Institute, Chinese Academy of Fishery SciencesState Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of SciencesState Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of SciencesFishery Machinery and Instrument Research Institute, Chinese Academy of Fishery SciencesSchool of Resources and Geosciences, China University of Mining and TechnologyFishery Machinery and Instrument Research Institute, Chinese Academy of Fishery SciencesAbstract The algal succession in Microcystis blooms of varying biomass under continuous aeration was studied in a greenhouse. There were four treatments (control, Low, Medium, and High) with initial chlorophyll a (Chl-a) of 32.5, 346.8, 1413.7, and 14,250.0 μg L−1, respectively. During the experiment, Cyanophyta biomass was the lowest in the Medium treatment (P < 0.05), while its Chlorophyta biomass was the highest (P < 0.05). Both Chlorophyta and Bacillariophyta biomass were the lowest in the High treatment (P < 0.05). Bacillariophyta biomass, particularly the diatom Nitzschia palea was the highest in the Low treatment (P < 0.05), and Nitzschia palea cells were attached to the Microcystis colonies. Thus, the algal shift in Microcystis blooms under aeration disturbance depends on its initial biomass, and it shift to green algae or/and diatom dominance in the control, Low, Medium treatments. Diatom cells, particularly N. palea, grew in an attached form on Microcystis colonies in treatment Low, in which the colonies provided media for the adherence. The mechanism of the algal shift with different biomass must be related to the nutrient level, low light and aerobic conditions under aeration disturbance as well as the aeration itself, which destroyed the Microcystis colonies’ advantage of floating on the water.https://doi.org/10.1038/s41598-022-25017-4 |
| spellingShingle | Xiaodong Wang Xingguo Liu Boqiang Qin Xiangming Tang Xuan Che Yanqing Ding Zhaojun Gu The biomass of bloom-forming colonial Microcystis affects its response to aeration disturbance Scientific Reports |
| title | The biomass of bloom-forming colonial Microcystis affects its response to aeration disturbance |
| title_full | The biomass of bloom-forming colonial Microcystis affects its response to aeration disturbance |
| title_fullStr | The biomass of bloom-forming colonial Microcystis affects its response to aeration disturbance |
| title_full_unstemmed | The biomass of bloom-forming colonial Microcystis affects its response to aeration disturbance |
| title_short | The biomass of bloom-forming colonial Microcystis affects its response to aeration disturbance |
| title_sort | biomass of bloom forming colonial microcystis affects its response to aeration disturbance |
| url | https://doi.org/10.1038/s41598-022-25017-4 |
| work_keys_str_mv | AT xiaodongwang thebiomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT xingguoliu thebiomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT boqiangqin thebiomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT xiangmingtang thebiomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT xuanche thebiomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT yanqingding thebiomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT zhaojungu thebiomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT xiaodongwang biomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT xingguoliu biomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT boqiangqin biomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT xiangmingtang biomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT xuanche biomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT yanqingding biomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance AT zhaojungu biomassofbloomformingcolonialmicrocystisaffectsitsresponsetoaerationdisturbance |