Comparison of ecological parameters in the sediment using multi-proxy approaches to indicate environmental changes

LIU Dongyan; DI Baoping; SHI Yajun; SHEN Xuhong; LI Xin

doi:10.3969/j.issn.0253 4193.2013.02.016

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LIU Dongyan, DI Baoping, SHI Yajun, SHEN Xuhong, LI Xin. Comparison of ecological parameters in the sediment using multi-proxy approaches to indicate environmental changes[J]. Haiyang Xuebao, 2013, 35(2): 154-160. doi: 10.3969/j.issn.0253 4193.2013.02.016

Citation:

LIU Dongyan, DI Baoping, SHI Yajun, SHEN Xuhong, LI Xin. Comparison of ecological parameters in the sediment using multi-proxy approaches to indicate environmental changes[J]. Haiyang Xuebao, 2013, 35(2): 154-160. doi: 10.3969/j.issn.0253 4193.2013.02.016

Citation:

LIU Dongyan, DI Baoping, SHI Yajun, SHEN Xuhong, LI Xin. Comparison of ecological parameters in the sediment using multi-proxy approaches to indicate environmental changes[J]. Haiyang Xuebao, 2013, 35(2): 154-160. doi: 10.3969/j.issn.0253 4193.2013.02.016

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Comparison of ecological parameters in the sediment using multi-proxy approaches to indicate environmental changes

doi: 10.3969/j.issn.0253 4193.2013.02.016

1.
Key Laboratory of Coastal Zone Environmental Processes and Ecological Research, Chinese Academy of Sciences, Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
2.
Key Laboratory of Coastal Zone Environmental Processes and Ecological Research, Chinese Academy of Sciences, Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China;University of the Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2012-06-28
Rev Recd Date: 2012-12-10

Abstract

Abstract

Diatom frustules, dinoflagellate cysts, lipids and biogenic silica (BSi) have been widely used to reconstruct and indicate the marine paleo-environmental changes. In this study, five biological and chemical proxies including fossil diatoms, dinoflagellage cysts, brassicasterol, dinosterol and biogenic silica, were analyzed in the surface sediment of the Sishili Bay for the comparison of their ecological roles. Based on the results of correlation analysis and indicative capability of the five proxies, a multi-proxy approach was suggested. Diatom frustules showed obviously positive correlation with the brassicasterol and BSi values, respectively (P<0.05); the brassicasterol and BSi value performed well in the corrections and improvement for the accuracy of indication from fossil diatom. However, no significant correlations were found between dinoflagellate cysts and dinosterol values; and in a comparison, dinosteral displayed a better capability to indicate the biomass of dinoflagellate than cysts. A combination of using biological and chemical parameters can not only improve the accuracy of biomass indication but also provide the species composition for a better understanding of how algae response to changed environment.
- fossil diatom,
- dinoflagellage cysts,
- sterol,
- biogenic silica,
- Sishili Bay,

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References(27)

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