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dc.contributor.authorNegri, Andrew P.
dc.contributor.authorFlores, Florita
dc.contributor.authorRöthig, Till
dc.contributor.authorUthicke, Sven
dc.date.accessioned2019-02-25T14:42:00Z
dc.date.available2019-02-25T14:42:00Z
dc.date.issued2011-02-03
dc.identifier.citationNegri, A.P. et al. (2011) ‘Herbicides increase the vulnerability of corals to rising sea surface temperature,’ Limnology and Oceanography, 56(2), pp.471-485. Doi: 10.4319/lo.2011.56.2.0471en_US
dc.identifier.issn0024-3590
dc.identifier.doi10.4319/lo.2011.56.2.0471
dc.identifier.urihttp://hdl.handle.net/10545/623530
dc.description.abstractIn order to examine the potential interactive pressures of local pollution and global climate change, we exposed corals and crustose coralline algae (CCA) to three agricultural photosystem II (PSII) herbicides at four temperatures (26–32°C). The coral Acropora millepora was 3‐ to 10‐fold more sensitive to the three herbicides than the CCA Neogoniolithon fosliei. While the photosynthesis of CCA was not affected by the herbicide concentrations used (< 1 μg L−1), temperatures of 31°C and 32°C alone significantly inhibited photosynthetic efficiency (ΔF:F′m) and caused chronic photoinhibition (reduced Fv:Fm) and substantial bleaching. Environmentally relevant concentrations of each herbicide increased the negative effects of thermal stress on coral at 31°C and 32°C. Mixed model analyses of variance showed that the effects of elevated sea surface temperatures (SST) and herbicide on photosynthetic efficiency of coral symbionts were additive. Furthermore, the effect of either diuron or atrazine in combination with higher SST (31°C and 32°C) on chronic photoinhibition was distinctly greater than additive (synergistic). Reducing the herbicide concentration by 1 μg L−1 diuron above 30°C would protect photosynthetic efficiency by the equivalent of 1.8°C and reduce chronic photoinhibition by the equivalent of a 1°C reduction. Reduced water quality increases the vulnerability of corals to elevated SSTs, and effective management of local water quality can reduce negative effects of global stressors such as elevated SST.en_US
dc.description.sponsorshipN/Aen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.urlhttp://doi.wiley.com/10.4319/lo.2011.56.2.0471en_US
dc.rightsArchived with thanks to Limnology and Oceanographyen
dc.subjectClimate changeen_US
dc.subjectmarine ecosystemen_US
dc.titleHerbicides increase the vulnerability of corals to rising sea surface temperatureen_US
dc.typeArticleen_US
dc.identifier.eissn1939-5590
dc.contributor.departmentAustralian Institute of Marine Science, Townsville, Queensland, Australiaen_US
dc.identifier.journalLimnology and Oceanographyen_US
dcterms.dateAccepted2010-08-31


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