Evolution of nutrient structure and phytoplankton composition in the Jiaozhou Bay ecosystem

	Evolution of nutrient structure and phytoplankton composition in the Jiaozhou Bay ecosystem
	Zhao, SJ ; Rao, NZ ; Wu, CW ; Bing, L ; Mang, SY
	2005
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
ISSN	1001-0742
卷号	17 期号:1 页码:95-102
文章类型	Article
摘要	The inventories of nutrients in the surface water and large phytoplankton( > 69 pm) were analyzed from the data set of JERS ecological database about a typical coastal waters, the Jiaozhou Bay, China, from 1960s for N, P and from 1980s; for Si. By examining long-term changes of nutrient concentration, calculating stoichiometric balance, and comparing diatom composition, Si limitation of diatom production was found to be more possible. The possibility of Si limitation was from 37% in 1980s to 50% in 1990s. Jiaozhou Bay ecosystem is becoming serious eutrophication, with notable increase of NO2-N, NO3-N and NH4-N from 0.1417 mumol/L, 0.5414 mumol/L, 1.7222 mumol/L in 1960s to 0.9551 mumol/L, 3.001 mumol/L, 8.0359 mumol/L in late 1990s respectively and prominent decrease of Si from 4.2614 mumol/L in 1980s to 1.5861 mumol/L in late 1990s; the nutrient structure is controlled by nitrogen; the main limiting nutrient is probably silicon; because of the Si limitation the phytoplankton community structure has changed drastically.; The inventories of nutrients in the surface water and large phytoplankton( > 69 pm) were analyzed from the data set of JERS ecological database about a typical coastal waters, the Jiaozhou Bay, China, from 1960s for N, P and from 1980s; for Si. By examining long-term changes of nutrient concentration, calculating stoichiometric balance, and comparing diatom composition, Si limitation of diatom production was found to be more possible. The possibility of Si limitation was from 37% in 1980s to 50% in 1990s. Jiaozhou Bay ecosystem is becoming serious eutrophication, with notable increase of NO2-N, NO3-N and NH4-N from 0.1417 mumol/L, 0.5414 mumol/L, 1.7222 mumol/L in 1960s to 0.9551 mumol/L, 3.001 mumol/L, 8.0359 mumol/L in late 1990s respectively and prominent decrease of Si from 4.2614 mumol/L in 1980s to 1.5861 mumol/L in late 1990s; the nutrient structure is controlled by nitrogen; the main limiting nutrient is probably silicon; because of the Si limitation the phytoplankton community structure has changed drastically.
关键词	Nutrients Si-limitation Stoichiometric Ratios Species Composition Jiaozhou Bay
学科领域	Environmental Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000226147000019
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/2712
专题	海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Zool, Beijing 100080, Peoples R China 2.Xiamen Univ, Ctr Marine Environm Sci, Xiamen 361005, Peoples R China 3.Zhejiang Ocean Univ, Marine Sci & Technol Coll, Zhoushan 316004, Peoples R China 4.Chinese Acad Sci, Inst Oceanog, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhao, SJ,Rao, NZ,Wu, CW,et al. Evolution of nutrient structure and phytoplankton composition in the Jiaozhou Bay ecosystem[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2005,17(1):95-102.
APA	Zhao, SJ,Rao, NZ,Wu, CW,Bing, L,&Mang, SY.(2005).Evolution of nutrient structure and phytoplankton composition in the Jiaozhou Bay ecosystem.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,17(1),95-102.
MLA	Zhao, SJ,et al."Evolution of nutrient structure and phytoplankton composition in the Jiaozhou Bay ecosystem".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 17.1(2005):95-102.

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