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Impact of extreme metal contamination at the supra-individual level in a contaminated bay ecosystem
Wu, Bin1,2; Li, Xuegang2; Song, Jinming2; Hu, Limin1; Shi, Xuefa1
2016-07-01
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
卷号557页码:102-109
文章类型Article
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.
关键词Metals Macrofaunal Assemblage Ecological Effects Industrial Pollution Sediment
DOI10.1016/j.scitotenv.2016.03.047
收录类别SCI
语种英语
WOS记录号WOS:000375136200011
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/131022
专题海洋生态与环境科学重点实验室
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
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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.
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