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Tracking spatial distribution of human-derived wastewater from Davis Station, East Antarctica, using δ15N and δ13C stable isotopes.

Corbett,PA, King,CK and Mondon,JA 2015, Tracking spatial distribution of human-derived wastewater from Davis Station, East Antarctica, using δ15N and δ13C stable isotopes., Marine Pollution Bulletin, vol. 90, no. 1-2, pp. 41-47, doi: 10.1016/j.marpolbul.2014.11.034.

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Title Tracking spatial distribution of human-derived wastewater from Davis Station, East Antarctica, using δ15N and δ13C stable isotopes.
Author(s) Corbett,PA
King,CK
Mondon,JA
Journal name Marine Pollution Bulletin
Volume number 90
Issue number 1-2
Start page 41
End page 47
Total pages 7
Publisher Elsevier
Place of publication Camden, London
Publication date 2015-01
ISSN 1879-3363
Keyword(s) Antarctic rock-cod
Fish
Sewage
Stable isotope
Trematomus bernacchii
Summary Stable isotope ratios, δ15N and δ13C were effectively used to determine the geographical dispersion of human derived sewage from Davis Station, East Antarctica, using Antarctic rock cod (Trematomus bernacchii). Fish within 0-4km downstream of the outfall exhibited higher δ15N and δ13C values relative to reference sites. Nitrogen in particular showed a stepped decrease in δ15N with increasing distance from the discharge point by 1-2‰. Stable isotopes were better able to detect the extent of wastewater contamination than other techniques including faecal coliform and sterol measures. Uptake and assimilation of δ15N and δ13C up to 4km from the outfall adds to growing evidence indicating the current level of wastewater treatment at Davis Station is not sufficient to avoid impact to the surrounding environment. Isotopic assimilation in T. bernacchii is a viable biomarker for investigation of initial sewage exposure and longer term monitoring in the future.
Notes Beth I am unsure the copyright dates with this one - Lisa B
Language eng
DOI 10.1016/j.marpolbul.2014.11.034
Field of Research 050204 Environmental Impact Assessment
Socio Economic Objective 960502 Ecosystem Assessment and Management of Antarctic and Sub-Antarctic Environments
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069029

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