Phytotoxicity induced in isolated zooxanthellae by herbicides extracted from Great Barrier Reef flood waters

Shaw, C. M., Brodie, J. and Mueller, J. F. (2012) Phytotoxicity induced in isolated zooxanthellae by herbicides extracted from Great Barrier Reef flood waters. Marine Pollution Bulletin, 65 4-9: 355-362. doi:10.1016/j.marpolbul.2012.01.037


Author Shaw, C. M.
Brodie, J.
Mueller, J. F.
Title Phytotoxicity induced in isolated zooxanthellae by herbicides extracted from Great Barrier Reef flood waters
Journal name Marine Pollution Bulletin   Check publisher's open access policy
ISSN 0025-326X
1879-3363
Publication date 2012-01-01
Sub-type Article (original research)
DOI 10.1016/j.marpolbul.2012.01.037
Open Access Status Not Open Access
Volume 65
Issue 4-9
Start page 355
End page 362
Total pages 8
Place of publication London, United Kingdom
Publisher Elsevier
Language eng
Abstract To date there has been limited evidence anthropogenically sourced pollution from catchments reaching corals of the Great Barrier Reef (GBR). In this study, freshly isolated zooxanthellae were exposed to polar chemicals (chiefly herbicides) extracted from water samples collected in a flood plume in the GBR lagoon. Photosynthetic potential of the isolated zooxanthellae declined after exposure to concentrated extracts (10 times) from all but one of the sampling sites. Photosynthetic potential demonstrated a significant positive relationship with the concentration of diuron in the concentrated extracts and a significant inverse relationship with salinity measured at the sampling site. This study demonstrates that runoff from land based application of herbicides may reduce photosynthetic efficiency in corals of inshore reefs in the GBR. The ecological impacts of the chemicals in combination with other potential stressors on corals remain unclear.
Keyword Coral
Herbicide
Flood
PAM
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
National Research Centre for Environmental Toxicology Publications
 
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Created: Sat, 10 Nov 2012, 04:25:04 EST by System User on behalf of National Res Centre For Environmental Toxicology