Intermittent disturbance benefits colony size, biomass and dominance of Microcystis in Lake Taihu under field simulation condition

	Intermittent disturbance benefits colony size, biomass and dominance of Microcystis in Lake Taihu under field simulation condition
	Yang, Guijun; Tang, Xiangming; Wilhelm, Steven W.; Pan, Wenwen; Rui, Zheng; Xu, Lei; Zhong, Chunni; Hu, Xiquan
刊名	HARMFUL ALGAE
	2020
卷号	99
英文摘要	Wind-driven wave disturbance is one of the environmental factors that shapes the formation of Microcystis blooms. Here we present data on the effect of different disturbance modes (continuous vs intermittent disturbances) on colony size, biomass and dominance of Microcystis in Lake Taihu under field conditions. Small submersible pumps were used to simulate different disturbance modes at turbulent dissipation rate (epsilon) of 2.98 x 10(-6) m(2) s(-3). Our results show that the mean colony sizes of Microcystis in intermittent and continuous disturbance group were 1.94 and 1.23 times that of the control group, respectively. The mean densities of Microcystis in intermittent and continuous disturbance group were 4.23 and 2.91 times that of the control group, respectively. The mean proportion of Microcystis to total algae abundance in control group and continuous disturbance group changed from 78.3% at beginning of the experiment to 4.5% and 9.1% at the end of the experiment. However, the proportion of Microcystis to total algae cells in intermittent disturbance group was 65.7-94.3% during the whole experiment. The results demonstrated intermittent disturbances favored colony morphology, biomass and dominance of Microcystis. Our results suggested that intermittent disturbance benefited the formation of Microcystis bloom and was important in the development of predictive models for toxic cyanobacterial blooms under changing climates in shallow lakes.
内容类型	期刊论文
源URL	[http://159.226.73.51/handle/332005/20075]
专题	中国科学院南京地理与湖泊研究所
推荐引用方式 GB/T 7714	Yang, Guijun,Tang, Xiangming,Wilhelm, Steven W.,et al. Intermittent disturbance benefits colony size, biomass and dominance of Microcystis in Lake Taihu under field simulation condition[J]. HARMFUL ALGAE,2020,99.
APA	Yang, Guijun.,Tang, Xiangming.,Wilhelm, Steven W..,Pan, Wenwen.,Rui, Zheng.,...&Hu, Xiquan.(2020).Intermittent disturbance benefits colony size, biomass and dominance of Microcystis in Lake Taihu under field simulation condition.HARMFUL ALGAE,99.
MLA	Yang, Guijun,et al."Intermittent disturbance benefits colony size, biomass and dominance of Microcystis in Lake Taihu under field simulation condition".HARMFUL ALGAE 99(2020).