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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Show simple item record Ulstrup, KE Berkelmans, R Ralph, PJ Van Oppen, MJH 2009-12-21T02:30:18Z 2006-05-22
dc.identifier.citation Marine Ecology Progress Series, 2006, 314 pp. 135 - 148
dc.identifier.issn 0171-8630
dc.identifier.other C1 en_US
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°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 P. 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 (Fv/Fm) 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. © Inter-Research 2006.
dc.language eng
dc.relation.isbasedon 10.3354/meps314135
dc.title Variation in bleaching sensitivity of two coral species across a latitudinal gradient on the Great Barrier Reef: The role of zooxanthellae
dc.type Journal Article
dc.parent Marine Ecology Progress Series
dc.journal.volume 314
dc.journal.number en_US
dc.publocation Germany en_US
dc.identifier.startpage 135 en_US
dc.identifier.endpage 148 en_US SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 0602 Ecology
dc.personcode 890085
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
dc.description.keywords temperature tolerance, corals, bleaching, zooxanthellae, symbiodinium en_US
dc.description.keywords Climate change
dc.description.keywords Water resources
dc.description.keywords Adaptation
dc.description.keywords Subjective adaptive capacity
dc.description.keywords Perceptions
dc.description.keywords Small islands
dc.description.keywords Bleaching
dc.description.keywords Corals
dc.description.keywords F v/Fm
dc.description.keywords Symbiodinium
dc.description.keywords Temperature tolerance
dc.description.keywords Zooxanthellae
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - C3
utslib.copyright.status Closed Access 2015-04-15 12:23:47.074767+10
utslib.collection.history General (ID: 2)
utslib.collection.history Uncategorised (ID: 363)

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