Natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification
There are few in situ studies showing how net community calcification (G) of coral reefs is related to carbonate chemistry, and the studies to date have demonstrated different predicted rates of change. In this study, we measured net community production (P), G, and carbonate chemistry of a reef fla...
Published in: | Limnology and Oceanography |
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American Society of Limnology and Oceanography
2015
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:363460 2023-05-15T17:50:34+02:00 Natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification Shaw, Emily C. Phinn, Stuart R. Tilbrook, Bronte Steven, Andy 2015-05-01 https://espace.library.uq.edu.au/view/UQ:363460/UQ363460_OA.pdf https://espace.library.uq.edu.au/view/UQ:363460 eng eng American Society of Limnology and Oceanography doi:10.1002/lno.10048 issn:0024-3590 issn:1939-5590 issn:1939-5604 orcid:0000-0002-4148-3526 orcid:0000-0002-2605-6104 Not set Buffer capacity Diurnal changes Wind speed 1104 Aquatic Science 1910 Oceanography Journal Article 2015 ftunivqespace https://doi.org/10.1002/lno.10048 2020-11-17T01:20:49Z There are few in situ studies showing how net community calcification (G) of coral reefs is related to carbonate chemistry, and the studies to date have demonstrated different predicted rates of change. In this study, we measured net community production (P), G, and carbonate chemistry of a reef flat at One Tree Island, Great Barrier Reef. Diurnal pCO variability of 289-724 μatm was driven primarily by photosynthesis and respiration. The reef flat was found to be net autotrophic, with daily production of ~ 35 mmol C m d and net calcification of ~ 33 mmol C m d. G was strongly related to P, which drove a hysteresis pattern in the relationship between G and aragonite saturation state (Ω). Although P was the main driver of G, Ω was still an important factor, where 95% of the variance in G could be described by P and Ω. Based on the observed in situ relationship, G would be expected to reach zero when Ω is ~ 2.5. It is unknown what proportion of a decline in G would be through reduced calcification and what would occur through increased dissolution, but the results here support predictions that overall calcium carbonate production will decline in coral reefs as a result of ocean acidification. Article in Journal/Newspaper Ocean acidification The University of Queensland: UQ eSpace Limnology and Oceanography 60 3 777 788 |
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The University of Queensland: UQ eSpace |
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ftunivqespace |
language |
English |
topic |
Buffer capacity Diurnal changes Wind speed 1104 Aquatic Science 1910 Oceanography |
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Buffer capacity Diurnal changes Wind speed 1104 Aquatic Science 1910 Oceanography Shaw, Emily C. Phinn, Stuart R. Tilbrook, Bronte Steven, Andy Natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification |
topic_facet |
Buffer capacity Diurnal changes Wind speed 1104 Aquatic Science 1910 Oceanography |
description |
There are few in situ studies showing how net community calcification (G) of coral reefs is related to carbonate chemistry, and the studies to date have demonstrated different predicted rates of change. In this study, we measured net community production (P), G, and carbonate chemistry of a reef flat at One Tree Island, Great Barrier Reef. Diurnal pCO variability of 289-724 μatm was driven primarily by photosynthesis and respiration. The reef flat was found to be net autotrophic, with daily production of ~ 35 mmol C m d and net calcification of ~ 33 mmol C m d. G was strongly related to P, which drove a hysteresis pattern in the relationship between G and aragonite saturation state (Ω). Although P was the main driver of G, Ω was still an important factor, where 95% of the variance in G could be described by P and Ω. Based on the observed in situ relationship, G would be expected to reach zero when Ω is ~ 2.5. It is unknown what proportion of a decline in G would be through reduced calcification and what would occur through increased dissolution, but the results here support predictions that overall calcium carbonate production will decline in coral reefs as a result of ocean acidification. |
format |
Article in Journal/Newspaper |
author |
Shaw, Emily C. Phinn, Stuart R. Tilbrook, Bronte Steven, Andy |
author_facet |
Shaw, Emily C. Phinn, Stuart R. Tilbrook, Bronte Steven, Andy |
author_sort |
Shaw, Emily C. |
title |
Natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification |
title_short |
Natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification |
title_full |
Natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification |
title_fullStr |
Natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification |
title_full_unstemmed |
Natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification |
title_sort |
natural in situ relationships suggest coral reef calcium carbonate production will decline with ocean acidification |
publisher |
American Society of Limnology and Oceanography |
publishDate |
2015 |
url |
https://espace.library.uq.edu.au/view/UQ:363460/UQ363460_OA.pdf https://espace.library.uq.edu.au/view/UQ:363460 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
doi:10.1002/lno.10048 issn:0024-3590 issn:1939-5590 issn:1939-5604 orcid:0000-0002-4148-3526 orcid:0000-0002-2605-6104 Not set |
op_doi |
https://doi.org/10.1002/lno.10048 |
container_title |
Limnology and Oceanography |
container_volume |
60 |
container_issue |
3 |
container_start_page |
777 |
op_container_end_page |
788 |
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1766157392486072320 |