A method linking the toxic effects at community-level with contaminant concentrations

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

	A method linking the toxic effects at community-level with contaminant concentrations
	Wang, CY; Su, RG; Zhang, Y; Liu, G
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2016-11-01
卷号	569 页码:352-360
关键词	Equilibrium point Ecological interaction Petroleum hydrocarbon Competition Grazing Ecological risk assessment
ISSN号	0048-9697
通讯作者	Wang, CY (reprint author), Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Jiangsu, Peoples R China. Email:
产权排序	[Wang, Changyou; Liu, Gang] Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Jiangsu, Peoples R China; [Su, Rongguo] Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China; [Zhang, Yong] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Processes, Yantai 264003, Peoples R China; [Wang, Changyou; Liu, Gang] Nanjing Univ Informat Sci & Technol, Jiangsu Res Ctr Ocean Survey Technol, Nanjing 210044, Jiangsu, Peoples R China
英文摘要	In this study, we developed a method to quantify and link the toxic effects in community-level ecosystems with concentrations of petroleum hydrocarbons. The densities of Platymonas helgolandica var. tsingtaoensis, Isochrysis galbana, and Brachionus plicatilis in single-species tests and customized ecosystems were examined in response to a concentration gradient of petroleum hydrocarbons ranging from 0 to 8.0 mg L-1. A three-population ecological model with interspecies competition-grazing relationships was used to characterize population sizes with concentrations of petroleum hydrocarbons. A threshold concentration of the simplified plankton ecosystem of 0.376 mg L-1 for petroleum hydrocarbons was calculated from the proposed model, which was higher than the no-effect concentration of 0.056 mg L-1 derived from the single-species toxicity tests and the predicted no-effect concentration of 0.076 mg L-1 calculated from the species sensitivity distribution. This finding indicates that interspecies competition and grazing reduced the toxic effect of petroleum hydrocarbons at the community level. The sensitivity analysis for model parameters demonstrates that plankton population biomasses are highly sensitive to filtration rates. Antagonism between interspecies interactions and petroleum hydrocarbon toxicity was attributed to the reduced filtration rate and zooplankton grazing pressure. The proposed method is a simple means to address the concern regarding the impacts of ecological interactions on ecological risk assessments of pollutants. (C) 2016 Elsevier B.V. All rights reserved.
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	PETROLEUM-HYDROCARBONS ; ECOTOXICOLOGY ; MICROALGAE ; METALS ; TESTS
收录类别	SCI
语种	英语
WOS记录号	WOS:000382269000037
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/17234]
专题	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烟台海岸带研究所_近岸生态与环境实验室
推荐引用方式 GB/T 7714	Wang, CY,Su, RG,Zhang, Y,et al. A method linking the toxic effects at community-level with contaminant concentrations[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,569:352-360.
APA	Wang, CY,Su, RG,Zhang, Y,&Liu, G.(2016).A method linking the toxic effects at community-level with contaminant concentrations.SCIENCE OF THE TOTAL ENVIRONMENT,569,352-360.
MLA	Wang, CY,et al."A method linking the toxic effects at community-level with contaminant concentrations".SCIENCE OF THE TOTAL ENVIRONMENT 569(2016):352-360.