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	Effects of wind wave turbulence on the phytoplankton community composition in large, shallow Lake Taihu
	Zhou, Jian1,2; Qin, Boqiang1,7; Casenave, Celine3; Han, Xiaoxia4; Yang, Guijun5; Wu, Tingfeng1; Wu, Pan1,2; Ma, Jianrong6
	2015-08-01
摘要	Wind waves are responsible for some of the spatio-temporal gradients observed in the biotic and abiotic variables in large shallow lakes. However, their effects on the phytoplankton community composition are still largely unexplored especially in freshwater systems such as lakes. In this paper, using field observations and mesocosm bioassay experiments, we investigated the impact of turbulence generated by wind waves on the phyto-plankton community composition (especially on harmful cyanobacteria) in Lake Taihu, a large, shallow eutrophic lake in China. The composition of the phytoplankton community varied with the intensity of wind waves in the different areas of the lake. During summer, when wind waves were strong in the central lake, diatoms and green algae seemed to dominate while harmful cyanobacteria dominated in the weakly influenced Meiliang Bay. Turbulence bioassays also showed that diatoms and green algae were favoured by turbulent mixing. The critical time for the shift of the phytoplankton community composition was approximately 10 days under turbulent conditions. However, short-term (6 days) turbulence is rather beneficial for the dominance of cyanobacteria. This study suggests that the duration of wind events and their associated hydrodynamics are key factors to understanding the temporal and spatial changes of phytoplankton communities.
关键词	Wind waves Turbulence Phytoplankton community composition Dominance Cyanobacterial blooms
DOI	10.1007/s11356-015-4535-2
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
卷号	22期号:16页码:12737-12746
通讯作者	Qin, BQ (reprint author), Chinese Acad Sci, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, 73 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000358579700072
语种	英语