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 | |
刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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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. |
电子版国际标准刊号 | 18791026 |
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/handle/2SI8HI0U/3406] ![]() |
专题 | 业务部门_海洋地质与地球物理研究室 |
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 |
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. |
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