期刊
MARINE POLLUTION BULLETIN
卷 64, 期 1, 页码 90-98出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2011.10.017
关键词
In situ exposure; Biomarkers response; Ruditapes philippinarum; Digestive gland; Biomonitoring; Multivariate analysis
资金
- National Nature Science Foundation of China [20807034/B070704]
- K.C. Wong Education Foundation, Hong Kong
The clams Ruditapes philippinarum were used to assess the impact of metal contaminants when transplanted to seven study sites along the Maluan Bay (China). Metal concentrations in digestive gland tissues of clams after 7-day in situ cage exposure were determined in conjunction with antioxidant enzyme activities. The results showed the importance of specific antioxidant biomarkers to assess complex pollutant mixtures and their good correlations to the pollutant compositions of deployment sites. Multivariate analysis indicated causal relationship between the chemicals at each study site and the biochemical response of the caged clams at these sites and demonstrated the potential presence of two different contaminant sources. This study suggested that the incorporation of tissue residue analysis with biomarkers response in caged clams together with factor analysis can be a useful biomonitoring tool for the identification of causal toxic pollutants and the assessment of complex metal pollutions in marine coastal environment. (C) 2011 Elsevier Ltd. All rights reserved.
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