Application of a novel phytotoxicity assay for the detection of Herbicides in Hervey Bay and the Great Sandy Straits

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Title Application of a novel phytotoxicity assay for the detection of Herbicides in Hervey Bay and the Great Sandy Straits
Author Bengtson Nash, Susan; McMahon, K.; Eaglesham, G.; Müller, J.F.
Journal Name Marine Pollution Bulletin
Year Published 2005
Place of publication United Kingdom
Publisher Elsevier
Abstract A novel phytotoxicity assay was incorporated into an environmental assessment of Hervey Bay and the Great Sandy Straits, to investigate the role of run-off associated herbicides in the deteriorated health of intertidal seagrass meadows. Dose response curves of common herbicides were performed and their toxicity equivalents elucidated to assist in analysis. The results of the assay were reproducible and corresponded strongly with results of chemical analyses. The incorporation of the assay into the assessment of surface waters added an important aspect to the study by allowing investigation of the toxicity of cumulative herbicide concentrations and yielding biologically relevant data. The highest herbicide concentration detected during the study was equivalent to 0.23 μg l−1 diuron; a concentration known to inhibit photosynthetic efficiency of the assay biomaterial by approximately 3%.
Peer Reviewed Yes
Published Yes
Volume 51
Issue Number 1-4
Page from 351
Page to 360
ISSN 0025-326X
Date Accessioned 2010-07-01
Date Available 2010-07-30T07:18:51Z
Language en_AU
Research Centre Atmospheric Environment Research Centre
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Environmental Sciences
URI http://hdl.handle.net/10072/33037
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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