Grazing on toxic and non-toxic Microcystis aeruginosa PCC7820 by Unio douglasiae and Corbicula fluminea

CORC > 水生生物研究所 > 中科院水生所知识产出（2009年前） > 期刊论文

	Grazing on toxic and non-toxic Microcystis aeruginosa PCC7820 by Unio douglasiae and Corbicula fluminea
	Liu, Ying 1; Xie, Ping 1; Wu, Xiao-Ping 2
刊名	LIMNOLOGY
	2009-04-01
卷号	10 期号:1 页码:1-5
关键词	Microcystis aeruginosa PCC7820 Scenedesmus obliquus Unio douglasiae Corbicula fluminea Excrete products
ISSN号	1439-8621
通讯作者	Xie, P, Chinese Acad Sci, Donghu Lake Ecosyst Expt Stn, Inst Hydrobiol, Wuhan 430072, Peoples R China
中文摘要	To explore the potential grazing effects of mussels on Microcystis aeruginosa, a common bloom-forming phytoplankton, Unio douglasiae and Corbicula fluminea were fed with Scenedesmus obliquus, toxic and non-toxic strains of Microcystis aeruginosa as single food and as mixtures in the laboratory. When fed with single foods, U. douglasiae has similar clearance rates on the three algae populations, while C. fluminea has significantly lower clearance rate on toxic M. aeruginosa than those on the other two algae populations. When fed with mixture foods, both the mussels show significantly higher clearance rates than on single foods. The clearance rates of U. douglasiae on the different food mixtures are not significantly different, and C. fluminea has a significantly lower clearance rate on the toxic food mixtures than that on non-toxic food mixtures. Although the relative lower clearance rates of C. fluminea on toxic food, we may still deduce that both the mussels can exert grazing pressure on phytoplankton. The deduction is supported by the composition of the excretion products. The excretion products (faeces and pseudofaeces) of both mussels contained mainly S. obliquus. In both mixed-food treatments, the ratios of S. obliquus to M. aeruginosa in the excrete products are significantly higher than those in the foods. Therefore, it can be concluded that both mussels prefer M. aeruginosa to S. obliquus, and can cause grazing pressure on M. aeruginosa.
英文摘要	To explore the potential grazing effects of mussels on Microcystis aeruginosa, a common bloom-forming phytoplankton, Unio douglasiae and Corbicula fluminea were fed with Scenedesmus obliquus, toxic and non-toxic strains of Microcystis aeruginosa as single food and as mixtures in the laboratory. When fed with single foods, U. douglasiae has similar clearance rates on the three algae populations, while C. fluminea has significantly lower clearance rate on toxic M. aeruginosa than those on the other two algae populations. When fed with mixture foods, both the mussels show significantly higher clearance rates than on single foods. The clearance rates of U. douglasiae on the different food mixtures are not significantly different, and C. fluminea has a significantly lower clearance rate on the toxic food mixtures than that on non-toxic food mixtures. Although the relative lower clearance rates of C. fluminea on toxic food, we may still deduce that both the mussels can exert grazing pressure on phytoplankton. The deduction is supported by the composition of the excretion products. The excretion products (faeces and pseudofaeces) of both mussels contained mainly S. obliquus. In both mixed-food treatments, the ratios of S. obliquus to M. aeruginosa in the excrete products are significantly higher than those in the foods. Therefore, it can be concluded that both mussels prefer M. aeruginosa to S. obliquus, and can cause grazing pressure on M. aeruginosa.
学科主题	Limnology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Limnology
研究领域[WOS]	Marine & Freshwater Biology
关键词[WOS]	MUSSEL DREISSENA-POLYMORPHA ; ZEBRA MUSSEL ; PHYTOPLANKTON ; LAKE ; CYANOBACTERIA ; RESTORATION ; SHALLOW ; BLOOMS ; SESTON
收录类别	SCI
资助信息	National Basic Research Program of China [2008CB418101]
语种	英语
WOS记录号	WOS:000264964500001
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/7788]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	1.Chinese Acad Sci, Donghu Lake Ecosyst Expt Stn, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Nanchang Univ, Coll Life Sci, Nanchang 330047, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Ying,Xie, Ping,Wu, Xiao-Ping. Grazing on toxic and non-toxic Microcystis aeruginosa PCC7820 by Unio douglasiae and Corbicula fluminea[J]. LIMNOLOGY,2009,10(1):1-5.
APA	Liu, Ying,Xie, Ping,&Wu, Xiao-Ping.(2009).Grazing on toxic and non-toxic Microcystis aeruginosa PCC7820 by Unio douglasiae and Corbicula fluminea.LIMNOLOGY,10(1),1-5.
MLA	Liu, Ying,et al."Grazing on toxic and non-toxic Microcystis aeruginosa PCC7820 by Unio douglasiae and Corbicula fluminea".LIMNOLOGY 10.1(2009):1-5.