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Deep reefs of the Great Barrier Reef offer limited thermal refuge during mass coral bleaching

2018-09Journal article Open access
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dc.contributor.authorRodrigues Frade, Pedro
dc.contributor.authorBongaerts, Pim
dc.contributor.authorEnglebert, Norbert
dc.contributor.authorRogers, Alice
dc.contributor.authorGonzalez-Rivero, Manuel
dc.contributor.authorHoegh-Guldberg, Ove
dc.date.accessioned2018-12-07T14:58:11Z
dc.date.available2018-12-07T14:58:11Z
dc.date.issued2018-09
dc.description.abstractOur rapidly warming climate is threatening coral reefs as thermal anomalies trigger mass coral bleaching events. Deep (or "mesophotic") coral reefs are hypothesised to act as major ecological refuges from mass bleaching, but empirical assessments are limited. We evaluated the potential of mesophotic reefs within the Great Barrier Reef (GBR) and adjacent Coral Sea to act as thermal refuges by characterising long-term temperature conditions and assessing impacts during the 2016 mass bleaching event. We found that summer upwelling initially provided thermal relief at upper mesophotic depths (40 m), but then subsided resulting in anomalously warm temperatures even at depth. Bleaching impacts on the deep reefs were severe (40% bleached and 6% dead colonies at 40 m) but significantly lower than at shallower depths (60-69% bleached and 8-12% dead at 5-25 m). While we confirm that deep reefs can offer refuge from thermal stress, we highlight important caveats in terms of the transient nature of the protection and their limited ability to provide broad ecological refuge.
dc.description.sponsorshipXL Catlin Seaview Survey; Waitt Foundation; XL Catlin Group; Underwater Earth; University of Queensland; ARC Discovery Early Career Researcher Award (DECRA) [DE160101433]; Portuguese Science and Technology Foundation (FCT) [SFRH/BPD/110285/2015]; Australian Research Council (ARC)
dc.identifier.doi10.1038/s41467-018-05741-0
dc.identifier.issn2041-1723
dc.identifier.urihttp://hdl.handle.net/10400.1/11899
dc.language.isoeng
dc.peerreviewedyes
dc.publisherNature Publishing Group
dc.relationThe gastric cavity of corals as bioreactor fo ecosystem-scale microbial processes
dc.subjectClimate-Change
dc.subjectTemperature
dc.subjectPatterns
dc.subjectDecline
dc.subjectWater
dc.titleDeep reefs of the Great Barrier Reef offer limited thermal refuge during mass coral bleaching
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleThe gastric cavity of corals as bioreactor fo ecosystem-scale microbial processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F110285%2F2015/PT
oaire.citation.startPage3447
oaire.citation.titleNature Communications
oaire.citation.volume9
oaire.fundingStreamOE
person.familyNameRodrigues Frade
person.givenNamePedro
person.identifier.orcid0000-0002-4010-255X
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication971fbd17-d766-4e0a-b698-7f115e88f7f5
relation.isAuthorOfPublication.latestForDiscovery971fbd17-d766-4e0a-b698-7f115e88f7f5
relation.isProjectOfPublication3226faf4-3aa9-4263-8fb2-4655c1187ab8
relation.isProjectOfPublication.latestForDiscovery3226faf4-3aa9-4263-8fb2-4655c1187ab8

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