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Potential Costs of Acclimatization to a Warmer Climate: Growth of a Reef Coral with Heat Tolerant vs. Sensitive Symbiont Types

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dc.contributor Australian Institute Of Marine Science
dc.contributor Ctr Environm Management
dc.contributor Cent Queensland Univ
dc.contributor Australian Inst Marine Sci
dc.contributor Central Queensland University
dc.contributor Australian Institute Of Marine Science (aims) en
dc.contributor.author BERKELMANS, RAY
dc.contributor.author JONES, ALISON
dc.date.accessioned 2013-02-28T06:44:48Z
dc.date.accessioned 2013-02-28T06:44:48Z
dc.date.accessioned 2017-03-21T00:53:06Z
dc.date.accessioned 2018-11-01T03:16:22Z
dc.date.available 2017-03-21T00:53:06Z
dc.date.available 2017-03-21T00:53:06Z
dc.date.available 2013-02-28T06:44:48Z
dc.date.available 2018-11-01T03:16:22Z
dc.date.issued 2010-05-03
dc.identifier 8489 en
dc.identifier.citation Jones AM and Berkelmans R (2010) Potential costs of acclimatization to a warmer climate: Growth of a reef coral with heat tolerant vs. sensitive symbiont types. PLoS ONE. 5: e10437. en
dc.identifier.issn 1932-6203
dc.identifier.uri http://epubs.aims.gov.au/11068/8489
dc.description Link to abstract/full text - http://dx.doi.org/10.1371/journal.pone.0010437 en
dc.description.abstract One of the principle ways in which reef building corals are likely to cope with a warmer climate is by changing to more thermally tolerant endosymbiotic algae (zooxanthellae) genotypes. It is highly likely that hosting a more heat-tolerant algal genotype will be accompanied by tradeoffs in the physiology of the coral. To better understand one of these tradeoffs, growth was investigated in the Indo-Pacific reef-building coral Acropora millepora in both the laboratory and the field. In the Keppel Islands in the southern Great Barrier Reef this species naturally harbors nrDNA ITS1 thermally sensitive type C2 or thermally tolerant type D zooxanthellae of the genus Symbiodinium and can change dominant type following bleaching. We show that under controlled conditions, corals with type D symbionts grow 29% slower than those with type C2 symbionts. In the field, type D colonies grew 38% slower than C2 colonies. These results demonstrate the magnitude of trade-offs likely to be experienced by this species as they acclimatize to warmer conditions by changing to more thermally tolerant type D zooxanthellae. Irrespective of symbiont genotype, corals were affected to an even greater degree by the stress of a bleaching event which reduced growth by more than 50% for up to 18 months compared to pre-bleaching rates. The processes of symbiont change and acute thermal stress are likely to act in concert on coral growth as reefs acclimatize to more stressful warmer conditions, further compromising their regeneration capacity following climate change.
dc.description.sponsorship This study was made possible by funding from the Australian Institute of Marine Science and Central Queensland University. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
dc.description.uri http://dx.doi.org/10.1371/journal.pone.0010437 en
dc.language English
dc.language en en
dc.relation.ispartof PLoS ONE - pages: 5: e10437 en
dc.relation.ispartof Null
dc.subject Great-barrier-reef
dc.subject Science & Technology - Other Topics
dc.subject Building Corals
dc.subject Photosynthesis
dc.subject Multidisciplinary Sciences
dc.subject Bleaching Event
dc.subject Endosymbionts
dc.subject Stress
dc.subject Communities
dc.subject Zooxanthellae
dc.subject Scleractinian Corals
dc.subject Temperature
dc.title Potential Costs of Acclimatization to a Warmer Climate: Growth of a Reef Coral with Heat Tolerant vs. Sensitive Symbiont Types
dc.type journal article en
dc.identifier.doi 10.1371/journal.pone.0010437
dc.identifier.wos WOS:000277240300013


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