Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions
The resilience of tropical corals to ocean acidification depends on their ability to regulate the pH within their calcifying fluid (pHcf). Recent work suggests pHcf homeostasis under short-term exposure to pCO2 conditions predicted for 2100, but it is still unclear if pHcf homeostasis can be maintai...
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Online Access: | https://epic.awi.de/id/eprint/43032/ https://doi.org/10.1038/srep30688 https://hdl.handle.net/10013/epic.49646 |
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ftawi:oai:epic.awi.de:43032 2023-05-15T17:51:23+02:00 Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions Wall, M. Fietzke, J. Schmidt, Gertraud Maria Fink, A Hofmann, L. C. de Beer, D. Fabricius, K. E. 2016 https://epic.awi.de/id/eprint/43032/ https://doi.org/10.1038/srep30688 https://hdl.handle.net/10013/epic.49646 unknown Wall, M. , Fietzke, J. , Schmidt, G. M. , Fink, A. , Hofmann, L. C. , de Beer, D. and Fabricius, K. E. (2016) Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions , Scientific Reports, 6 , p. 30688 . doi:10.1038/srep30688 <https://doi.org/10.1038/srep30688> , hdl:10013/epic.49646 EPIC3Scientific Reports, 6, pp. 30688, ISSN: 2045-2322 Article peerRev 2016 ftawi https://doi.org/10.1038/srep30688 2021-12-24T15:42:22Z The resilience of tropical corals to ocean acidification depends on their ability to regulate the pH within their calcifying fluid (pHcf). Recent work suggests pHcf homeostasis under short-term exposure to pCO2 conditions predicted for 2100, but it is still unclear if pHcf homeostasis can be maintained throughout a corals lifetime. At CO2 seeps in Papua New Guinea, massive Porites corals have grown along a natural seawater pH gradient for decades. This natural gradient, ranging from pH 8.1–7.4, provides an ideal platform to determine corals’ pHcf (using boron isotopes). Porites maintained a similar pHcf (~8.24) at both a control (pH 8.1) and seep-influenced site (pH 7.9). Internal pHcf was slightly reduced (8.12) at seawater pH 7.6, and decreased to 7.94 at a site with a seawater pH of 7.4. A growth response model based on pHcf mirrors the observed distribution patterns of this species in the field. We suggest Porites has the capacity to acclimate after long-time exposure to end-of-century reduced seawater pH conditions and that strong control over pHcf represents a key mechanism to persist in future oceans. Only beyond end-of-century pCO2 conditions do they face their current physiological limit of pH homeostasis and pHcf begins to decrease. Article in Journal/Newspaper Ocean acidification Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Scientific Reports 6 1 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The resilience of tropical corals to ocean acidification depends on their ability to regulate the pH within their calcifying fluid (pHcf). Recent work suggests pHcf homeostasis under short-term exposure to pCO2 conditions predicted for 2100, but it is still unclear if pHcf homeostasis can be maintained throughout a corals lifetime. At CO2 seeps in Papua New Guinea, massive Porites corals have grown along a natural seawater pH gradient for decades. This natural gradient, ranging from pH 8.1–7.4, provides an ideal platform to determine corals’ pHcf (using boron isotopes). Porites maintained a similar pHcf (~8.24) at both a control (pH 8.1) and seep-influenced site (pH 7.9). Internal pHcf was slightly reduced (8.12) at seawater pH 7.6, and decreased to 7.94 at a site with a seawater pH of 7.4. A growth response model based on pHcf mirrors the observed distribution patterns of this species in the field. We suggest Porites has the capacity to acclimate after long-time exposure to end-of-century reduced seawater pH conditions and that strong control over pHcf represents a key mechanism to persist in future oceans. Only beyond end-of-century pCO2 conditions do they face their current physiological limit of pH homeostasis and pHcf begins to decrease. |
format |
Article in Journal/Newspaper |
author |
Wall, M. Fietzke, J. Schmidt, Gertraud Maria Fink, A Hofmann, L. C. de Beer, D. Fabricius, K. E. |
spellingShingle |
Wall, M. Fietzke, J. Schmidt, Gertraud Maria Fink, A Hofmann, L. C. de Beer, D. Fabricius, K. E. Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions |
author_facet |
Wall, M. Fietzke, J. Schmidt, Gertraud Maria Fink, A Hofmann, L. C. de Beer, D. Fabricius, K. E. |
author_sort |
Wall, M. |
title |
Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions |
title_short |
Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions |
title_full |
Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions |
title_fullStr |
Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions |
title_full_unstemmed |
Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions |
title_sort |
internal ph regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/43032/ https://doi.org/10.1038/srep30688 https://hdl.handle.net/10013/epic.49646 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
EPIC3Scientific Reports, 6, pp. 30688, ISSN: 2045-2322 |
op_relation |
Wall, M. , Fietzke, J. , Schmidt, G. M. , Fink, A. , Hofmann, L. C. , de Beer, D. and Fabricius, K. E. (2016) Internal pH regulation facilitates in situ long-term acclimation of massive corals to end-of-century carbon dioxide conditions , Scientific Reports, 6 , p. 30688 . doi:10.1038/srep30688 <https://doi.org/10.1038/srep30688> , hdl:10013/epic.49646 |
op_doi |
https://doi.org/10.1038/srep30688 |
container_title |
Scientific Reports |
container_volume |
6 |
container_issue |
1 |
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1766158511058714624 |