Impact of extreme metal contamination at the supra-individual level in a contaminated bay ecosystem

doi:10.1016/j.scitotenv.2016.03.047

	Impact of extreme metal contamination at the supra-individual level in a contaminated bay ecosystem
	Wu, Bin 1,2; Li, Xuegang 2; Song, Jinming 2; Hu, Limin 1; Shi, Xuefa 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2016-07
卷号	557 页码:102-109
关键词	Metals Macrofaunal assemblage Ecological effects Industrial pollution Sediment
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2016.03.047
英文摘要	Anthropogenic stressors impact the global environment and adversely affect the health of organisms and humans. This study was designed as an attempt to evaluate the ecological consequences of severe metal contamination at the supra-individual level based on a field investigation in Jinzhou Bay (JZB), North China in 2010. The chemical results showed high concentrations of metals in the sediment of JZB thatwere - 129 times greater than the local geochemical background. Furthermore, the measured metals exhibited considerably high toxicity potential indicated by sediment quality guidelines (SQGs). The mean SQGs quotients suggested the overall toxicity incidence was >70% in locations neighboring the Wulihe River mouth. Biomonitoring revealed 116 individuals distributed among a mere 6 species, 4 of which were polychaetes, at 33% of the sampling sites. Thus, few benthic organisms were present in the damaged community structures across the region, which was consistent with the extreme metal contamination. Moreover, the sediment quality assessment, in a weight of evidence framework, demonstrated that the sediment throughout the entire JZB was moderately to severely impaired, especially in the vicinity of the Wulihe River mouth. By synthesizing the present and previous chemical-biological monitoring campaigns, a possible cause-effect relationship between chemical stressors and benthic receptors was established. We also found that the hydrodynamics, sediment sources, and geochemical characteristics of the metals (in addition to the sources of the metals) were responsible for the geochemical distribution of metals in JZB. The significance of the overall finding is that the deleterious responses observed at the community level may possibly be linked to the extreme chemical stress in the sediment of JZB. (C) 2016 Elsevier B.V. All rights reserved.
资助项目	China Postdoctoral Science Foundation[2015M580569]
WOS关键词	SEDIMENT QUALITY GUIDELINES ; SURFACE SEDIMENTS ; JINZHOU BAY ; MARINE-SEDIMENTS ; HEAVY-METALS ; TOXIC METALS ; BOHAI BAY ; CHINA ; POLLUTION ; ESTUARINE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000375136200011
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24793]
专题	自然资源部第一海洋研究所
通讯作者	Wu, Bin; Song, Jinming
作者单位	1.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wu, Bin,Li, Xuegang,Song, Jinming,et al. Impact of extreme metal contamination at the supra-individual level in a contaminated bay ecosystem[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,557:102-109.
APA	Wu, Bin,Li, Xuegang,Song, Jinming,Hu, Limin,&Shi, Xuefa.(2016).Impact of extreme metal contamination at the supra-individual level in a contaminated bay ecosystem.SCIENCE OF THE TOTAL ENVIRONMENT,557,102-109.
MLA	Wu, Bin,et al."Impact of extreme metal contamination at the supra-individual level in a contaminated bay ecosystem".SCIENCE OF THE TOTAL ENVIRONMENT 557(2016):102-109.