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

Bengtson Nash, S. M., McMahon, K., Eaglesham, G. and Müller, J. F. (2005) Application of a novel phytotoxicity assay for the detection of herbicides in Hervey Bay and the Great Sandy Straits. Marine Pollution Bulletin, 51 1: 351-360. doi:10.1016/j.marpolbul.2004.10.017


Author Bengtson Nash, S. M.
McMahon, K.
Eaglesham, G.
Müller, J. F.
Title Application of a novel phytotoxicity assay for the detection of herbicides in Hervey Bay and the Great Sandy Straits
Journal name Marine Pollution Bulletin   Check publisher's open access policy
ISSN 0025-326X
Publication date 2005
Sub-type Article (original research)
DOI 10.1016/j.marpolbul.2004.10.017
Volume 51
Issue 1
Start page 351
End page 360
Total pages 10
Editor J. Sheppard
J. Pearce
Place of publication Oxford
Publisher Pergamon-Elsevier Science Ltd
Collection year 2005
Language eng
Subject C1
321299 Public Health and Health Services not elsewhere classified
730210 Environmental health
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 mu g 1(-1) diuron; a concentration known to inhibit photosynthetic efficiency of the assay biomaterial by approximately 3%. (c) 2004 Elsevier Ltd. All rights reserved.
Keyword Environmental Sciences
Marine & Freshwater Biology
Herbicides
Phytotoxicity
Bioassay
Aquatic
Toxicity Equivalents
Diuron
Chlorophyll Fluorescence
Quantum Yield
Water
Atrazine
Sensitivity
Australia
Recovery
Movement
Toxicity
Seagrass
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 06:18:48 EST