Nutrient structure of seawater and ecological responses in Jiaozhou Bay, China

doi:10.1016/j.ecss.2006.04.014

	Nutrient structure of seawater and ecological responses in Jiaozhou Bay, China
	Shen Zhiliang; Qun, Liu; Win, Wu; Yun, Yao
	2006-08-01
发表期刊	ESTUARINE COASTAL AND SHELF SCIENCE
ISSN	0272-7714
卷号	69 期号:1-2 页码:299-307
文章类型	Article
摘要	Nutrient concentrations in seawater, and C, N, P, Si and chlorophyll a content in different-sized particulates were measured in Jiaozhou Bay, and C, N, P, Si composition in different-sized fractions of phytoplankton and their ecological responses to nutrient structure of the seawater were studied. Microphytoplankton and nanophytoplankton were dominant in Jiaozhou Bay. High C (16.50-20.97 unol L-1), N (2.46-2.99 mu mol L-1) and low P (0.06-0.12 mu mol L-1), Si (0.18-0.57 mu mol L-1) content, and high N/P (24.7-64.6) and low SUP (4.4-10.8), Si/N (0.06-0.20) ratios were found in all sized groups of particulates. These values reflected the elemental compositions of different-sized fractions of phytoplankton as being an ecological response to the nutrients in the seawater. The ratios deviated significantly from the Redfield values. The nutrient composition of seawater and particulates and their relationship to chlorophyll a showed that phytoplankton growth was possibly limited by Si. Si limitation appears favorable for controlling the ecological equilibrium of Jiaozhou Bay. Different-sized fractions of phytoplankton had different suitability to nutrient structures of the seawater. Among phytoplankton size groups, nanophytoplankton and microphytoplankton growths were more adaptable in eutrophic Jiaozhou Bay, and more competitive for assimilation of Si. This is consistent with their diatom-dominated composition, controlling the biomass and productivity of phytoplankton in Jiaozhou Bay. (c) 2006 Elsevier Ltd. All rights reserved.; Nutrient concentrations in seawater, and C, N, P, Si and chlorophyll a content in different-sized particulates were measured in Jiaozhou Bay, and C, N, P, Si composition in different-sized fractions of phytoplankton and their ecological responses to nutrient structure of the seawater were studied. Microphytoplankton and nanophytoplankton were dominant in Jiaozhou Bay. High C (16.50-20.97 unol L-1), N (2.46-2.99 mu mol L-1) and low P (0.06-0.12 mu mol L-1), Si (0.18-0.57 mu mol L-1) content, and high N/P (24.7-64.6) and low SUP (4.4-10.8), Si/N (0.06-0.20) ratios were found in all sized groups of particulates. These values reflected the elemental compositions of different-sized fractions of phytoplankton as being an ecological response to the nutrients in the seawater. The ratios deviated significantly from the Redfield values. The nutrient composition of seawater and particulates and their relationship to chlorophyll a showed that phytoplankton growth was possibly limited by Si. Si limitation appears favorable for controlling the ecological equilibrium of Jiaozhou Bay. Different-sized fractions of phytoplankton had different suitability to nutrient structures of the seawater. Among phytoplankton size groups, nanophytoplankton and microphytoplankton growths were more adaptable in eutrophic Jiaozhou Bay, and more competitive for assimilation of Si. This is consistent with their diatom-dominated composition, controlling the biomass and productivity of phytoplankton in Jiaozhou Bay. (c) 2006 Elsevier Ltd. All rights reserved.
关键词	Nutrient Structures Of Seawater Particulate Nutrients Phytoplankton Si Limitation Ecological Responses Jiaozhou Bay
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1016/j.ecss.2006.04.014
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000239855300025
引用统计	被引频次：51[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/337002/5456
专题	海洋生态与环境科学重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Shen Zhiliang,Qun, Liu,Win, Wu,et al. Nutrient structure of seawater and ecological responses in Jiaozhou Bay, China[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2006,69(1-2):299-307.
APA	Shen Zhiliang,Qun, Liu,Win, Wu,&Yun, Yao.(2006).Nutrient structure of seawater and ecological responses in Jiaozhou Bay, China.ESTUARINE COASTAL AND SHELF SCIENCE,69(1-2),299-307.
MLA	Shen Zhiliang,et al."Nutrient structure of seawater and ecological responses in Jiaozhou Bay, China".ESTUARINE COASTAL AND SHELF SCIENCE 69.1-2(2006):299-307.

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