Ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera
Large benthic foraminifera are significant contributors to sediment formation on coral reefs, yet they are vulnerable to ocean acidification. Here, we assessed the biochemical and morphological impacts of acidification on the calcification of Amphistegina lessonii and Marginopora vertebralis exposed...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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crroyalsociety:10.1098/rspb.2014.2782 2024-06-02T08:12:32+00:00 Ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera Prazeres, Martina Uthicke, Sven Pandolfi, John M. 2015 http://dx.doi.org/10.1098/rspb.2014.2782 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2014.2782 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2014.2782 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 282, issue 1803, page 20142782 ISSN 0962-8452 1471-2954 journal-article 2015 crroyalsociety https://doi.org/10.1098/rspb.2014.2782 2024-05-07T14:16:10Z Large benthic foraminifera are significant contributors to sediment formation on coral reefs, yet they are vulnerable to ocean acidification. Here, we assessed the biochemical and morphological impacts of acidification on the calcification of Amphistegina lessonii and Marginopora vertebralis exposed to different pH conditions. We measured growth rates (surface area and buoyant weight) and Ca-ATPase and Mg-ATPase activities and calculated shell density using micro-computer tomography images. In A. lessonii , we detected a significant decrease in buoyant weight, a reduction in the density of inner skeletal chambers, and an increase of Ca-ATPase and Mg-ATPase activities at pH 7.6 when compared with ambient conditions of pH 8.1. By contrast, M. vertebralis showed an inhibition in Mg-ATPase activity under lowered pH, with growth rate and skeletal density remaining constant. While M. vertebralis is considered to be more sensitive than A. lessonii owing to its high-Mg-calcite skeleton, it appears to be less affected by changes in pH, based on the parameters assessed in this study. We suggest difference in biochemical pathways of calcification as the main factor influencing response to changes in pH levels, and that A. lessonii and M. vertebralis have the ability to regulate biochemical functions to cope with short-term increases in acidity. Article in Journal/Newspaper Ocean acidification The Royal Society Proceedings of the Royal Society B: Biological Sciences 282 1803 20142782 |
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English |
description |
Large benthic foraminifera are significant contributors to sediment formation on coral reefs, yet they are vulnerable to ocean acidification. Here, we assessed the biochemical and morphological impacts of acidification on the calcification of Amphistegina lessonii and Marginopora vertebralis exposed to different pH conditions. We measured growth rates (surface area and buoyant weight) and Ca-ATPase and Mg-ATPase activities and calculated shell density using micro-computer tomography images. In A. lessonii , we detected a significant decrease in buoyant weight, a reduction in the density of inner skeletal chambers, and an increase of Ca-ATPase and Mg-ATPase activities at pH 7.6 when compared with ambient conditions of pH 8.1. By contrast, M. vertebralis showed an inhibition in Mg-ATPase activity under lowered pH, with growth rate and skeletal density remaining constant. While M. vertebralis is considered to be more sensitive than A. lessonii owing to its high-Mg-calcite skeleton, it appears to be less affected by changes in pH, based on the parameters assessed in this study. We suggest difference in biochemical pathways of calcification as the main factor influencing response to changes in pH levels, and that A. lessonii and M. vertebralis have the ability to regulate biochemical functions to cope with short-term increases in acidity. |
format |
Article in Journal/Newspaper |
author |
Prazeres, Martina Uthicke, Sven Pandolfi, John M. |
spellingShingle |
Prazeres, Martina Uthicke, Sven Pandolfi, John M. Ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera |
author_facet |
Prazeres, Martina Uthicke, Sven Pandolfi, John M. |
author_sort |
Prazeres, Martina |
title |
Ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera |
title_short |
Ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera |
title_full |
Ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera |
title_fullStr |
Ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera |
title_full_unstemmed |
Ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera |
title_sort |
ocean acidification induces biochemical and morphological changes in the calcification process of large benthic foraminifera |
publisher |
The Royal Society |
publishDate |
2015 |
url |
http://dx.doi.org/10.1098/rspb.2014.2782 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2014.2782 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2014.2782 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 282, issue 1803, page 20142782 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2014.2782 |
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Proceedings of the Royal Society B: Biological Sciences |
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282 |
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1803 |
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20142782 |
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