Coral resilience to ocean acidification and global warming through pH up-regulation
Rapidly rising levels of atmospheric CO2 are not only causing ocean warming, but also lowering seawater pH hence the carbonate saturation state of the oceans, on which many marine organisms depend to calcify their skeletons(1,2). Using boron isotope systematics(3), we show how scleractinian corals u...
Published in: | Nature Climate Change |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
2012
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Online Access: | http://puma.isti.cnr.it/dfdownloadnew.php?ident=cnr.ismar/cnr.ismar.bo/2012-A0-025 http://puma.isti.cnr.it/rmydownload.php?filename=cnr.ismar/cnr.ismar.bo/2012-A0-025/2012-A0-025.pdf |
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ftpuma:oai:pumaoai.isti.cnr.it:cnr.ismar/cnr.ismar.bo/2012-A0-025 2023-05-15T17:49:49+02:00 Coral resilience to ocean acidification and global warming through pH up-regulation McCulloch, Malcolm Falter, Jim Trotter, Julie Montagna, Paolo 2012 application/pdf http://puma.isti.cnr.it/dfdownloadnew.php?ident=cnr.ismar/cnr.ismar.bo/2012-A0-025 http://puma.isti.cnr.it/rmydownload.php?filename=cnr.ismar/cnr.ismar.bo/2012-A0-025/2012-A0-025.pdf en eng NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND info:eu-repo/grantAgreement/EC/FP7/219607/EU/MEDITERRANEAN CLIMATE EVOLUTION AND CONNECTION WITH THE ATLANTIC OCEAN: INFERENCES FROM HIGH-RESOLUTION MARINE ARCHIVES/MEDAT-ARCHIVES info:eu-repo/semantics/altIdentifier/issn/1758-678X info:eu-repo/semantics/altIdentifier/doi/10.1038/NCLIMATE1473 info:eu-repo/semantics/restrictedAccess In: nature climate change, vol. 2 (8) pp. 623 - 633. NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND, 2012. CLIMATE-CHANGE; RESPONSIBILITY; COUNTRIES; EMISSIONS; POLICY info:eu-repo/semantics/article 2012 ftpuma https://doi.org/10.1038/NCLIMATE1473 2017-06-15T09:21:09Z Rapidly rising levels of atmospheric CO2 are not only causing ocean warming, but also lowering seawater pH hence the carbonate saturation state of the oceans, on which many marine organisms depend to calcify their skeletons(1,2). Using boron isotope systematics(3), we show how scleractinian corals up-regulate pH at their site of calcification such that internal changes are approximately one-half of those in ambient seawater. This species-dependent pH-buffering capacity enables aragonitic corals to raise the saturation state of their calcifying medium, thereby increasing calcification rates at little additional energy cost. Using a model of pH regulation combined with abiotic calcification, we show that the enhanced kinetics of calcification owing to higher temperatures has the potential to counter the effects of ocean acidification. Up-regulation of pH, however, is not ubiquitous among calcifying organisms; those lacking this ability are likely to undergo severe declines in calcification as CO2 levels increase. The capacity to up-regulate pH is thus central to the resilience of calcifiers to ocean acidification, although the fate of zooxanthellate corals ultimately depends on the ability of both the photosymbionts and coral host to adapt to rapidly increasing ocean temperatures(4). Article in Journal/Newspaper Ocean acidification PUMAlab (ISTI CNR - National Research Council) Nature Climate Change 2 8 623 627 |
institution |
Open Polar |
collection |
PUMAlab (ISTI CNR - National Research Council) |
op_collection_id |
ftpuma |
language |
English |
topic |
CLIMATE-CHANGE; RESPONSIBILITY; COUNTRIES; EMISSIONS; POLICY |
spellingShingle |
CLIMATE-CHANGE; RESPONSIBILITY; COUNTRIES; EMISSIONS; POLICY McCulloch, Malcolm Falter, Jim Trotter, Julie Montagna, Paolo Coral resilience to ocean acidification and global warming through pH up-regulation |
topic_facet |
CLIMATE-CHANGE; RESPONSIBILITY; COUNTRIES; EMISSIONS; POLICY |
description |
Rapidly rising levels of atmospheric CO2 are not only causing ocean warming, but also lowering seawater pH hence the carbonate saturation state of the oceans, on which many marine organisms depend to calcify their skeletons(1,2). Using boron isotope systematics(3), we show how scleractinian corals up-regulate pH at their site of calcification such that internal changes are approximately one-half of those in ambient seawater. This species-dependent pH-buffering capacity enables aragonitic corals to raise the saturation state of their calcifying medium, thereby increasing calcification rates at little additional energy cost. Using a model of pH regulation combined with abiotic calcification, we show that the enhanced kinetics of calcification owing to higher temperatures has the potential to counter the effects of ocean acidification. Up-regulation of pH, however, is not ubiquitous among calcifying organisms; those lacking this ability are likely to undergo severe declines in calcification as CO2 levels increase. The capacity to up-regulate pH is thus central to the resilience of calcifiers to ocean acidification, although the fate of zooxanthellate corals ultimately depends on the ability of both the photosymbionts and coral host to adapt to rapidly increasing ocean temperatures(4). |
format |
Article in Journal/Newspaper |
author |
McCulloch, Malcolm Falter, Jim Trotter, Julie Montagna, Paolo |
author_facet |
McCulloch, Malcolm Falter, Jim Trotter, Julie Montagna, Paolo |
author_sort |
McCulloch, Malcolm |
title |
Coral resilience to ocean acidification and global warming through pH up-regulation |
title_short |
Coral resilience to ocean acidification and global warming through pH up-regulation |
title_full |
Coral resilience to ocean acidification and global warming through pH up-regulation |
title_fullStr |
Coral resilience to ocean acidification and global warming through pH up-regulation |
title_full_unstemmed |
Coral resilience to ocean acidification and global warming through pH up-regulation |
title_sort |
coral resilience to ocean acidification and global warming through ph up-regulation |
publisher |
NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND |
publishDate |
2012 |
url |
http://puma.isti.cnr.it/dfdownloadnew.php?ident=cnr.ismar/cnr.ismar.bo/2012-A0-025 http://puma.isti.cnr.it/rmydownload.php?filename=cnr.ismar/cnr.ismar.bo/2012-A0-025/2012-A0-025.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
In: nature climate change, vol. 2 (8) pp. 623 - 633. NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND, 2012. |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/219607/EU/MEDITERRANEAN CLIMATE EVOLUTION AND CONNECTION WITH THE ATLANTIC OCEAN: INFERENCES FROM HIGH-RESOLUTION MARINE ARCHIVES/MEDAT-ARCHIVES info:eu-repo/semantics/altIdentifier/issn/1758-678X info:eu-repo/semantics/altIdentifier/doi/10.1038/NCLIMATE1473 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1038/NCLIMATE1473 |
container_title |
Nature Climate Change |
container_volume |
2 |
container_issue |
8 |
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623 |
op_container_end_page |
627 |
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