Diatom and silicoflagellate assemblages in modern surface sediments associated with human activity: A case study in Sishili Bay, China

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Diatom and silicoflagellate assemblages in modern surface sediments associated with human activity: A case study in Sishili Bay, China
	Di, Baoping1,2 ; Li, Dongyan 1; Wang, Yujue1 ; Dong, Zhijun1 ; Li, Xin 1,2; Shi, Yajun 1
刊名	ECOLOGICAL INDICATORS
	2013
卷号	24 期号:.页码:23-30
关键词	Human activity Sediment Diatom Silicoflagellate Sishili Bay
通讯作者	Li, DY (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China. dyliu@yic.ac.cn
中文摘要	The spatial distribution of diatom and silicoflagellate fossils deposited in modern surface sediments was studied in inshore and offshore zones of Sishili Bay, China, to explore the impact of human activity on the coastal ecosystem. The sediments from 28 sites representing a gradient in intensity of human activity from inshore to offshore were sampled. Although the nutrient parameters inshore showed far higher concentrations than the offshore area, due to sewage discharge and waste dumping in the bay, the average fossil abundance did not differ significantly between the two areas. The diatom fossil Paralia sulcata, supposed to be a eutrophic indicator dominated most sediment samples and displayed a significant and positive correlation with dissolved inorganic nitrogen and phosphorus in the upper water column, but did not show a significant difference in abundance between inshore area and offshore area. Factors such as sediment disturbance (e.g., shipping), grazing pressure (e.g., shellfish aquaculture farm) and sediment characteristics (e.g., grain size) can affect the preservation of fossil debris in the sediment and lower the precision with which human activities can be associated with the fossil abundance.
英文摘要	The spatial distribution of diatom and silicoflagellate fossils deposited in modern surface sediments was studied in inshore and offshore zones of Sishili Bay, China, to explore the impact of human activity on the coastal ecosystem. The sediments from 28 sites representing a gradient in intensity of human activity from inshore to offshore were sampled. Although the nutrient parameters inshore showed far higher concentrations than the offshore area, due to sewage discharge and waste dumping in the bay, the average fossil abundance did not differ significantly between the two areas. The diatom fossil Paralia sulcata, supposed to be a eutrophic indicator dominated most sediment samples and displayed a significant and positive correlation with dissolved inorganic nitrogen and phosphorus in the upper water column, but did not show a significant difference in abundance between inshore area and offshore area. Factors such as sediment disturbance (e.g., shipping), grazing pressure (e.g., shellfish aquaculture farm) and sediment characteristics (e.g., grain size) can affect the preservation of fossil debris in the sediment and lower the precision with which human activities can be associated with the fossil abundance. (C) 2012 Elsevier Ltd. All rights reserved.
学科主题	Biodiversity Conservation; Environmental Sciences
研究领域[WOS]	Biodiversity & Conservation ; Environmental Sciences & Ecology
关键词[WOS]	OCEAN ; CONSEQUENCES ; PRODUCTIVITY ; BIOGEOGRAPHY ; QUATERNARY ; PORTUGAL ; HOLOCENE ; RECORD ; LEVEL
收录类别	SCI
语种	英语
WOS记录号	WOS:000311059900003
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/5654]
专题	烟台海岸带研究所_近岸生态与环境实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Di, Baoping,Li, Dongyan,Wang, Yujue,et al. Diatom and silicoflagellate assemblages in modern surface sediments associated with human activity: A case study in Sishili Bay, China[J]. ECOLOGICAL INDICATORS,2013,24(.):23-30.
APA	Di, Baoping,Li, Dongyan,Wang, Yujue,Dong, Zhijun,Li, Xin,&Shi, Yajun.(2013).Diatom and silicoflagellate assemblages in modern surface sediments associated with human activity: A case study in Sishili Bay, China.ECOLOGICAL INDICATORS,24(.),23-30.
MLA	Di, Baoping,et al."Diatom and silicoflagellate assemblages in modern surface sediments associated with human activity: A case study in Sishili Bay, China".ECOLOGICAL INDICATORS 24..(2013):23-30.