Ocean acidification compromises a planktic calcifier with implications for global carbon cycling

Anthropogenically-forced changes in ocean chemistry at both the global and regional scale have the potential to negatively impact calcifying plankton, which play a key role in ecosystem functioning and marine carbon cycling. We cultured a globally important calcifying marine plankter (the foraminife...

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Published in:Scientific Reports
Main Authors: Davis, Catherine V., Rivest, Emily B., Hill, Tessa M., Gaylord, Brian, Russell, Ann D., Sanford, Eric
Format: Text
Language:English
Published: Nature Publishing Group UK 2017
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440396/
http://www.ncbi.nlm.nih.gov/pubmed/28533519
https://doi.org/10.1038/s41598-017-01530-9
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spelling ftpubmed:oai:pubmedcentral.nih.gov:5440396 2023-05-15T17:51:19+02:00 Ocean acidification compromises a planktic calcifier with implications for global carbon cycling Davis, Catherine V. Rivest, Emily B. Hill, Tessa M. Gaylord, Brian Russell, Ann D. Sanford, Eric 2017-05-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440396/ http://www.ncbi.nlm.nih.gov/pubmed/28533519 https://doi.org/10.1038/s41598-017-01530-9 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440396/ http://www.ncbi.nlm.nih.gov/pubmed/28533519 http://dx.doi.org/10.1038/s41598-017-01530-9 © 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/s41598-017-01530-9 2017-05-28T00:13:22Z Anthropogenically-forced changes in ocean chemistry at both the global and regional scale have the potential to negatively impact calcifying plankton, which play a key role in ecosystem functioning and marine carbon cycling. We cultured a globally important calcifying marine plankter (the foraminifer, Globigerina bulloides) under an ecologically relevant range of seawater pH (7.5 to 8.3 total scale). Multiple metrics of calcification and physiological performance varied with pH. At pH > 8.0, increased calcification occurred without a concomitant rise in respiration rates. However, as pH declined from 8.0 to 7.5, calcification and oxygen consumption both decreased, suggesting a reduced ability to precipitate shell material accompanied by metabolic depression. Repair of spines, important for both buoyancy and feeding, was also reduced at pH < 7.7. The dependence of calcification, respiration, and spine repair on seawater pH suggests that foraminifera will likely be challenged by future ocean conditions. Furthermore, the nature of these effects has the potential to actuate changes in vertical transport of organic and inorganic carbon, perturbing feedbacks to regional and global marine carbon cycling. The biological impacts of seawater pH have additional, important implications for the use of foraminifera as paleoceanographic indicators. Text Ocean acidification PubMed Central (PMC) Scientific Reports 7 1
institution Open Polar
collection PubMed Central (PMC)
op_collection_id ftpubmed
language English
topic Article
spellingShingle Article
Davis, Catherine V.
Rivest, Emily B.
Hill, Tessa M.
Gaylord, Brian
Russell, Ann D.
Sanford, Eric
Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
topic_facet Article
description Anthropogenically-forced changes in ocean chemistry at both the global and regional scale have the potential to negatively impact calcifying plankton, which play a key role in ecosystem functioning and marine carbon cycling. We cultured a globally important calcifying marine plankter (the foraminifer, Globigerina bulloides) under an ecologically relevant range of seawater pH (7.5 to 8.3 total scale). Multiple metrics of calcification and physiological performance varied with pH. At pH > 8.0, increased calcification occurred without a concomitant rise in respiration rates. However, as pH declined from 8.0 to 7.5, calcification and oxygen consumption both decreased, suggesting a reduced ability to precipitate shell material accompanied by metabolic depression. Repair of spines, important for both buoyancy and feeding, was also reduced at pH < 7.7. The dependence of calcification, respiration, and spine repair on seawater pH suggests that foraminifera will likely be challenged by future ocean conditions. Furthermore, the nature of these effects has the potential to actuate changes in vertical transport of organic and inorganic carbon, perturbing feedbacks to regional and global marine carbon cycling. The biological impacts of seawater pH have additional, important implications for the use of foraminifera as paleoceanographic indicators.
format Text
author Davis, Catherine V.
Rivest, Emily B.
Hill, Tessa M.
Gaylord, Brian
Russell, Ann D.
Sanford, Eric
author_facet Davis, Catherine V.
Rivest, Emily B.
Hill, Tessa M.
Gaylord, Brian
Russell, Ann D.
Sanford, Eric
author_sort Davis, Catherine V.
title Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_short Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_full Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_fullStr Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_full_unstemmed Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_sort ocean acidification compromises a planktic calcifier with implications for global carbon cycling
publisher Nature Publishing Group UK
publishDate 2017
url http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440396/
http://www.ncbi.nlm.nih.gov/pubmed/28533519
https://doi.org/10.1038/s41598-017-01530-9
genre Ocean acidification
genre_facet Ocean acidification
op_relation http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440396/
http://www.ncbi.nlm.nih.gov/pubmed/28533519
http://dx.doi.org/10.1038/s41598-017-01530-9
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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