Causes and consequences of changes in nutrient structure in the Jiaozhou Bay

	Causes and consequences of changes in nutrient structure in the Jiaozhou Bay
	Zhao, SJ ; Jiao, NZ ; Shen, ZL ; Wu, YL
刊名	JOURNAL OF INTEGRATIVE PLANT BIOLOGY
	2005-04
卷号	47 期号:4 页码:396-410
关键词	anthropogenic factor diatoms Jiaozhou Bay nutrient structure silicon limitation stoichiometric calculations
ISSN号	1672-9072
英文摘要	Concentrations and ratios of nutrients in Jiaozhou Bay, China, have changed much in the past decades, with trends indicating an increase in nitrogen and a decrease in silicate. Statistical analysis has shown that the long-term variations of nutrients are associated with agricultural activities, precipitation, and anthropogenic factors. Stoichiometric calculations indicate that the nutrient structure has become more and more unbalanced. There has been almost no possibility for nitrogen limitation since the 1980s, the probability of P limitation has increased, and the probability of Si limitation has also increased markedly from the 1980s to the 1990s. As a consequence of changes in nutrient structure, a decrease in the abundance of net phytoplankton was evident, whereas total chlorophyll a levels have remained roughly unchanged at around 3.55 mu g/L. Thus, it is likely that smaller species have taken the niche vacated by the larger species. Changes in phytoplankton size and species composition may ultimately lead to various functional and structural changes at the system level.
WOS关键词	PSEUDO-NITZSCHIA ; PHYTOPLANKTON PRODUCTION ; COASTAL WATERS ; DIATOM GROWTH ; UNITED-STATES ; LIMITATION ; PACIFIC ; ABUNDANCE ; BIOMASS ; MARINE
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
语种	英语
出版者	BLACKWELL PUBLISHING ASIA
WOS记录号	WOS:000228185500002
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25258]
专题	自然资源部第一海洋研究所
通讯作者	Zhao, SJ
作者单位	1.Chinese Acad Sci, Inst Oceanog, Qingdao 266071, Peoples R China 2.Xiamen Univ, Minist Educ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China 3.State Ocean Adm, Qingdao Marine Engn Prospecting Inst, Qingdao 266033, Peoples R China
推荐引用方式 GB/T 7714	Zhao, SJ,Jiao, NZ,Shen, ZL,et al. Causes and consequences of changes in nutrient structure in the Jiaozhou Bay[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2005,47(4):396-410.
APA	Zhao, SJ,Jiao, NZ,Shen, ZL,&Wu, YL.(2005).Causes and consequences of changes in nutrient structure in the Jiaozhou Bay.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,47(4),396-410.
MLA	Zhao, SJ,et al."Causes and consequences of changes in nutrient structure in the Jiaozhou Bay".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 47.4(2005):396-410.