Lipid biomarker as indicator for assessing the input of organic matters into sediments and evaluating phytoplankton evolution in upper water of the East China Sea

doi:10.1016/j.ecolind.2019.01.040

	Lipid biomarker as indicator for assessing the input of organic matters into sediments and evaluating phytoplankton evolution in upper water of the East China Sea
	Chen, Jianlei 1; Li, Feng 2; He, Xiuping 3; He, Xingliang 1,2; Wang, Jiangtao 1
刊名	ECOLOGICAL INDICATORS
	2019-06
卷号	101 页码:380-387
关键词	Lipid biomarkers Distribution characteristic Eutrophication Sediment source The East China Sea
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2019.01.040
英文摘要	It is meaningful and challenging to differentiate the origination of organic matters (OMs). As a kind of geochemical index, lipid biomarkers reflected the changes in the source of OMs in marine sediments caused by intensified eutrophication. In this study, the composition and distribution of lipid biomarkers (fatty acids and fatty alcohols) in sediment core were determined to distinguish the origination of different OMs in the condition of intensified eutrophication in the East China Sea. The source apportionment of delta C-13(TOC) (-22.03 similar to-23.81 parts per thousand) and C/N ratio suggested that the source of OMs was a mixture of terrestrial and marine, and mainly from the marine input. The fatty acids (total content between 1.69 and 9.48 mu g g(-1)) showed typical bimodal distribution which indicated terrestrial-marine mixed input and especially from autogenic marine input, and marine phytoplankton contribution increased in sediment in past decades. The principal component analysis (PCA) also indicated that most of the fatty acids were controlled by marine and terrestrial, and marine input (algae and bacteria) was the main source (> 75%). The total content of the fatty alcohols (n-alkanol and sterol) ranged from 2.1 mu g g(-1) to 29.9 mu g g(-1) and they were derived from terrestrial and marine input half to half. The phytoplankton community in upper water reconstructed based on Bra/Din ratio was consistent with the trend that single diatom-red tides turned into complex red tides composed of diatoms and dinoflagellates from the 1980s of the last century.
资助项目	National Key Research and Development Program[2016YFC1402101]
WOS关键词	PEARL RIVER ESTUARY ; SURFACE SEDIMENTS ; N-ALKANES ; MARINE ; PROXIES ; TRANSPORT ; SHELF ; PLATEAU ; INDEXES ; CORE
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000470963300040
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24693]
专题	自然资源部第一海洋研究所
通讯作者	Wang, Jiangtao
作者单位	1.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Shandong, Peoples R China 2.Qingdao Inst Marine Geol, Qingdao 266071, Shandong, Peoples R China 3.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jianlei,Li, Feng,He, Xiuping,et al. Lipid biomarker as indicator for assessing the input of organic matters into sediments and evaluating phytoplankton evolution in upper water of the East China Sea[J]. ECOLOGICAL INDICATORS,2019,101:380-387.
APA	Chen, Jianlei,Li, Feng,He, Xiuping,He, Xingliang,&Wang, Jiangtao.(2019).Lipid biomarker as indicator for assessing the input of organic matters into sediments and evaluating phytoplankton evolution in upper water of the East China Sea.ECOLOGICAL INDICATORS,101,380-387.
MLA	Chen, Jianlei,et al."Lipid biomarker as indicator for assessing the input of organic matters into sediments and evaluating phytoplankton evolution in upper water of the East China Sea".ECOLOGICAL INDICATORS 101(2019):380-387.