Decoupling between the response of coral calcifying fluid pH and calcification to ocean acidification
Evaluating the factors responsible for differing species-specific sensitivities to declining seawater pH is central to understanding the mechanisms via which ocean acidification (OA) affects coral calcification. We report here the results of an experiment comparing the responses of the coral Acropor...
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ftpubmed:oai:pubmedcentral.nih.gov:5548905 2023-05-15T17:50:29+02:00 Decoupling between the response of coral calcifying fluid pH and calcification to ocean acidification Comeau, S. Cornwall, C. E. McCulloch, M. T. 2017-08-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5548905/ http://www.ncbi.nlm.nih.gov/pubmed/28790423 https://doi.org/10.1038/s41598-017-08003-z en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5548905/ http://www.ncbi.nlm.nih.gov/pubmed/28790423 http://dx.doi.org/10.1038/s41598-017-08003-z © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2017 ftpubmed https://doi.org/10.1038/s41598-017-08003-z 2017-08-13T00:22:20Z Evaluating the factors responsible for differing species-specific sensitivities to declining seawater pH is central to understanding the mechanisms via which ocean acidification (OA) affects coral calcification. We report here the results of an experiment comparing the responses of the coral Acropora yongei and Pocillopora damicornis to differing pH levels (8.09, 7.81, and 7.63) over an 8-week period. Calcification of A. youngei was reduced by 35% at pH 7.63, while calcification of P. damicornis was unaffected. The pH in the calcifying fluid (pHcf) was determined using δ11B systematics, and for both species pHcf declined slightly with seawater pH, with the decrease being more pronounced in P. damicornis. The dissolved inorganic carbon concentration at the site of calcification (DICcf) was estimated using geochemical proxies (B/Ca and δ11B) and found to be double that of seawater DIC, and increased in both species as seawater pH decreased. As a consequence, the decline of the saturation state at the site of calcification (Ωcf) with OA was partially moderated by the DICcf increase. These results highlight that while pHcf, DICcf and Ωcf are important in the mineralization process, some corals are able to maintain their calcification rates despite shifts in their calcifying fluid carbonate chemistry. Text Ocean acidification PubMed Central (PMC) Scientific Reports 7 1 |
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Article Comeau, S. Cornwall, C. E. McCulloch, M. T. Decoupling between the response of coral calcifying fluid pH and calcification to ocean acidification |
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Article |
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Evaluating the factors responsible for differing species-specific sensitivities to declining seawater pH is central to understanding the mechanisms via which ocean acidification (OA) affects coral calcification. We report here the results of an experiment comparing the responses of the coral Acropora yongei and Pocillopora damicornis to differing pH levels (8.09, 7.81, and 7.63) over an 8-week period. Calcification of A. youngei was reduced by 35% at pH 7.63, while calcification of P. damicornis was unaffected. The pH in the calcifying fluid (pHcf) was determined using δ11B systematics, and for both species pHcf declined slightly with seawater pH, with the decrease being more pronounced in P. damicornis. The dissolved inorganic carbon concentration at the site of calcification (DICcf) was estimated using geochemical proxies (B/Ca and δ11B) and found to be double that of seawater DIC, and increased in both species as seawater pH decreased. As a consequence, the decline of the saturation state at the site of calcification (Ωcf) with OA was partially moderated by the DICcf increase. These results highlight that while pHcf, DICcf and Ωcf are important in the mineralization process, some corals are able to maintain their calcification rates despite shifts in their calcifying fluid carbonate chemistry. |
format |
Text |
author |
Comeau, S. Cornwall, C. E. McCulloch, M. T. |
author_facet |
Comeau, S. Cornwall, C. E. McCulloch, M. T. |
author_sort |
Comeau, S. |
title |
Decoupling between the response of coral calcifying fluid pH and calcification to ocean acidification |
title_short |
Decoupling between the response of coral calcifying fluid pH and calcification to ocean acidification |
title_full |
Decoupling between the response of coral calcifying fluid pH and calcification to ocean acidification |
title_fullStr |
Decoupling between the response of coral calcifying fluid pH and calcification to ocean acidification |
title_full_unstemmed |
Decoupling between the response of coral calcifying fluid pH and calcification to ocean acidification |
title_sort |
decoupling between the response of coral calcifying fluid ph and calcification to ocean acidification |
publisher |
Nature Publishing Group UK |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5548905/ http://www.ncbi.nlm.nih.gov/pubmed/28790423 https://doi.org/10.1038/s41598-017-08003-z |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5548905/ http://www.ncbi.nlm.nih.gov/pubmed/28790423 http://dx.doi.org/10.1038/s41598-017-08003-z |
op_rights |
© The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-017-08003-z |
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Scientific Reports |
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