Variation in bleaching sensitivity of two coral species across a latitudinal gradient on the Great Barrier Reef: the role of zooxanthellae

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dc.contributor.author Ulstrup, Karin Elizabeth en_US
dc.contributor.author Berkelmans, Ray en_US
dc.contributor.author Ralph, Peter en_US
dc.contributor.author Van Oppen, Madeleine en_US
dc.date.accessioned 2009-12-21T02:30:18Z
dc.date.available 2009-12-21T02:30:18Z
dc.date.issued 2006 en_US
dc.identifier 2006005089 en_US
dc.identifier.citation Ulstrup Karin Elizabeth et al. 2006, 'Variation in bleaching sensitivity of two coral species across a latitudinal gradient on the Great Barrier Reef: the role of zooxanthellae', Inter-Research, vol. 314, pp. 135-148. en_US
dc.identifier.issn 0171-8630 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/3828
dc.description.abstract The ability of corals to cope with environmental change, such as increased temperature, relies on the physiological mechanisms of acclimatisation and long-term genetic adaptation. We experimentally examined the bleaching sensitivity exhibited by 2 species of coral, Pocillopora damicornis and Turbinaria reniformis, at 3 locations across a latitudinal gradient of almost 6 degrees on the Great Barrier Reef (GBR), Target bleaching temperature was reached by using a ramping rate of 0.2 degrees C/h. We found that the bleaching sensitivity and recovery of both species differed between corals with clade D symbionts and those with clade C. However, in F damicornis bleaching susceptibility corresponded more strongly with latitude than with zooxanthella type and hence, temperature history, suggesting that local adaptation has occurred. The observed bleaching sensitivity was shown by a decrease in photochemical efficiency (F-v/F-m) in both species of coral. The rate of recovery in T reniformis was highest in explants containing clade D symbionts. The occurrence of clade D in the northern section of the GBR may reflect a long-term response to high sea water temperatures, while the presence of clade D in low abundance in T reniformis at Heralds Prong Reef and Percy Island may be a result of recent bleaching events. en_US
dc.publisher Inter-Research en_US
dc.relation.isbasedon http://dx.doi.org/10.3354/meps314135 en_US
dc.title Variation in bleaching sensitivity of two coral species across a latitudinal gradient on the Great Barrier Reef: the role of zooxanthellae en_US
dc.parent Marine Ecology Progress Series en_US
dc.journal.volume 314 en_US
dc.journal.number en_US
dc.publocation Germany en_US
dc.identifier.startpage 135 en_US
dc.identifier.endpage 148 en_US
dc.cauo.name SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 060200 en_US
dc.personcode 10018923 en_US
dc.personcode 0000028575 en_US
dc.personcode 890085 en_US
dc.personcode 0000017308 en_US
dc.percentage 100 en_US
dc.classification.name Ecology en_US
dc.classification.type FOR-08 en_US
dc.description.keywords temperature tolerance, corals, bleaching, zooxanthellae, symbiodinium en_US


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