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dc.contributor.authorSerrano, Oscar
dc.contributor.authorDavis, Grace
dc.contributor.authorLavery, Paul S.
dc.contributor.authorDuarte, Carlos M.
dc.contributor.authorMartinez-Cortizas, Antonio
dc.contributor.authorMateo, Miguel Angel
dc.contributor.authorMasqué, Pere
dc.contributor.authorArias-Ortiz, Ariane
dc.contributor.authorRozaimi, Mohammad
dc.contributor.authorKendrick, Gary A.
dc.date.accessioned2017-01-02T09:08:26Z
dc.date.available2017-01-02T09:08:26Z
dc.date.issued2015-10-02
dc.identifier.citationSerrano O, Davis G, Lavery PS, Duarte CM, Martinez-Cortizas A, et al. (2016) Reconstruction of centennial-scale fluxes of chemical elements in the Australian coastal environment using seagrass archives. Science of The Total Environment 541: 883–894. Available: http://dx.doi.org/10.1016/j.scitotenv.2015.09.017.
dc.identifier.issn0048-9697
dc.identifier.pmid26437357
dc.identifier.doi10.1016/j.scitotenv.2015.09.017
dc.identifier.urihttp://hdl.handle.net/10754/622330
dc.description.abstractThe study of a Posidonia australis sedimentary archive has provided a record of changes in element concentrations (Al, Fe, Mn, Pb, Zn, Cr, Cd, Co, As, Cu, Ni and S) over the last 3000 years in the Australian marine environment. Human-derived contamination in Oyster Harbor (SW Australia) started ~. 100 years ago (AD ~. 1900) and exponentially increased until present. This appears to be related to European colonization of Australia and the subsequent impact of human activities, namely mining, coal and metal production, and extensive agriculture. Two contamination periods of different magnitude have been identified: Expansion period (EXP, AD ~. 1900-1970) and Establishment period (EST, AD ~. 1970 to present). Enrichments of chemical elements with respect to baseline concentrations (in samples older than ~. 115 cal. years BP) were found for all elements studied in both periods, except for Ni, As and S. The highest enrichment factors were obtained for the EST period (ranging from 1.3-fold increase in Cu to 7.2-fold in Zn concentrations) compared to the EXP period (1.1-fold increase for Cu and Cr to 2.4-fold increase for Pb). Zinc, Pb, Mn and Co concentrations during both periods were 2- to 7-fold higher than baseline levels. This study demonstrates the value of Posidonia mats as long-term archives of element concentrations and trends in coastal ecosystems. We also provide preliminary evidence on the potential for Posidonia meadows to act as significant long-term biogeochemical sinks of chemical elements.
dc.description.sponsorshipThis work was supported by the ECU Faculty Research Grant Scheme, the ECU Early Career Research Grant Scheme, and the CSIRO Flagship Marine & Coastal Carbon Biogeochemical Cluster with funding from the CSIRO Flagship Collaboration Fund. PM was supported by a Gledden Visiting Fellowship and AAO by Obra Social "la Caixa". The authors are grateful to N. MarbA, G. Bastyan and D. Kyrwood for their help in field and/or laboratory tasks, as well as to L. Lopez-Merino and four anonymous reviewers for their comments.
dc.publisherElsevier BV
dc.subjectContamination
dc.subjectMarine biogeochemical cycles
dc.subjectPosidonia seagrass archive
dc.subjectRecent Holocene
dc.subjectSouthern Hemisphere
dc.titleReconstruction of centennial-scale fluxes of chemical elements in the Australian coastal environment using seagrass archives
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.identifier.journalScience of The Total Environment
dc.contributor.institutionSchool of Natural Sciences and Centre for Marine Ecosystems Research, Faculty of Health, Engineering and Science, Edith Cowan University, Joondalup, WA, 6027, Australia
dc.contributor.institutionThe UWA Oceans Institute, The University of Western Australia, Crawley, WA, Australia
dc.contributor.institutionCentro de Estudios Avanzados de Blanes, Consejo Superior de Investigaciones Científicas, Blanes, 17300, Spain
dc.contributor.institutionInstitut Mediterrani d'Estudis Avançats, Department of Global Change Research, IMEDEA (CSIC-UIB), Mallorca, Spain
dc.contributor.institutionDepartamento Edafologia y Quimica Agricola, Facultad di Biologia, Campus Sur s/n, Santiago, 15706, Spain
dc.contributor.institutionSchool of Physics, The University of Western Australia, Crawley, WA, 6009, Australia
dc.contributor.institutionDepartament de Física and Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Bellaterra, Catalonia, 08193, Spain
dc.contributor.institutionSchool of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, 43600, Malaysia
dc.contributor.institutionThe School of Plant Biology, The University of Western Australia, Crawley, WA, Australia
kaust.personDuarte, Carlos M.
dc.date.published-online2015-10-02
dc.date.published-print2016-01


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