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Recent environmental change and trace metal pollution in World Heritage Bathurst Harbour, southwest Tasmania, Australia

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dc.contributor Australian Nuclear Science & Technology Organisation
dc.contributor Univ Tasmania
dc.contributor University Of Bern
dc.contributor Inst Geog
dc.contributor Oeschger Ctr Climate Change Res
dc.contributor Nerc
dc.contributor Nerc Natural Environment Research Council
dc.contributor Nerc British Antarctic Survey
dc.contributor University Of Tasmania
dc.contributor Australian Inst Marine Sci
dc.contributor Univ Bern
dc.contributor British Antarctic Survey
dc.contributor Australian Nucl Sci & Technol Org
dc.contributor Inst Marine & Antarctic Studies
dc.contributor Australian Institute Of Marine Science
dc.contributor.author MCMINN, ANDREW
dc.contributor.author SAUNDERS, KRYSTYNA M.
dc.contributor.author HARRISON, JENNIFER J.
dc.contributor.author BUTLER, EDWARD C. V.
dc.contributor.author HODGSON, DOMINIC A.
dc.date.accessioned 2017-03-21T01:30:48Z
dc.date.accessioned 2014-02-17T06:19:39Z
dc.date.accessioned 2014-02-17T06:19:39Z
dc.date.accessioned 2019-05-09T01:10:53Z
dc.date.available 2014-02-17T06:19:39Z
dc.date.available 2017-03-21T01:30:48Z
dc.date.available 2017-03-21T01:30:48Z
dc.date.available 2019-05-09T01:10:53Z
dc.date.issued 2013-12-01
dc.identifier.citation Saunders KM, Harrison JJ, Butler ECV, Hodgson DA, McMinn (A) (2013) Recent environmental change and trace metal pollution in World Heritage Bathurst Harbour, southwest Tasmania, Australia. Journal of Paleolimnology 50(4): 471-485 en_US
dc.identifier.issn 0921-2728
dc.identifier.uri http://epubs.aims.gov.au/11068/10146
dc.description.abstract Bathurst Harbour in World Heritage southwest Tasmania, Australia, is one of the world's most pristine estuarine systems. At present there is a lack of data on pollution impacts or long-term natural variability in the harbor. A ca. 350-year-old Pb-210-dated sediment core was analysed for trace metals to track pollution impacts from local and long-range sources. Lead and antimony increased from AD 1870 onwards, which likely reflects remote (i.e. mainland Australian and global) atmospheric pollution sources. Variability in the concentrations of copper and zinc closely followed the history of mining activities in western Tasmania, which began in the AD 1880s. Tin was generally low throughout the core, except for a large peak in AD 1989 +/- A 0.5 years, which may be a consequence of input from a local small-scale alluvial tin mine. Changes in diatom assemblages were also investigated. The diatom flora was composed mostly of planktonic freshwater and benthic brackish-marine species, consistent with stratified estuarine conditions. Since mining began, however, an overall decrease in the proportion of planktonic to benthic taxa occurred, with the exception of two distinct peaks in the twentieth century that coincided with periods of high rainfall. Despite the region's remoteness, trace metal analyses revealed evidence of atmospheric pollution from Tasmanian and possibly longer-range mining activities. This, together with recent low rainfall, appears to have contributed to altering the diatom assemblages in one of the most pristine temperate estuaries in the world.
dc.description.sponsorship The Australian Nuclear Science and Technology Organisation and University of Tasmania are gratefully acknowledged for financial support. K. Saunders was funded by an Australian Postgraduate Award with additional funding from the Australian Institute of Nuclear Science and Engineering. We would like to thank the Department of Primary Industries, Water and the Environment for a permit to undertake the fieldwork; Albert Thompson for field assistance; Andrew Wakefield for geological advice; Ashley Townsend for trace metal advice; Henri Wong for ICP-MS measurements; Karthigah Shanmugarajah for grain size measurements and Stuart Hankin for Fig. 1. We would also like to thank John Gibson for discussions, Martin Grosjean and Katazyna Dziegielewska for valuable comments and proofreading the manuscript, and two reviewers and the editor for their considered comments and suggestions, which helped improve the manuscript.
dc.description.uri http://link.springer.com/article/10.1007/s10933-013-9740-8 en_US
dc.language English
dc.language.iso en en_US
dc.publisher Springer en_US
dc.relation.ispartof Null
dc.subject Human Impact
dc.subject Lakes
dc.subject Australia
dc.subject Estuaries
dc.subject Environmental Sciences & Ecology
dc.subject Western Tasmania
dc.subject Environmental Sciences
dc.subject Diatoms
dc.subject Limnology
dc.subject Palaeoecology
dc.subject Rain-forest
dc.subject Pb-210
dc.subject Anthropogenic Changes
dc.subject Marine & Freshwater Biology
dc.subject Tasmania
dc.subject Geosciences, Multidisciplinary
dc.subject Trace Metals
dc.subject Baltic Sea
dc.subject Diatom Assemblages
dc.subject Tree-rings
dc.subject Salinity
dc.subject Geology
dc.subject Estuarine Protected Area
dc.title Recent environmental change and trace metal pollution in World Heritage Bathurst Harbour, southwest Tasmania, Australia
dc.type journal article en_US
dc.identifier.doi 10.1007/s10933-013-9740-8
dc.identifier.wos WOS:000326622200005


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