Energetic Costs of Calcification Under Ocean Acidification
Anthropogenic ocean acidification threatens to negatively impact marine organisms that precipitate calcium carbonate skeletons. Past geological events, such as the Permian-Triassic Mass Extinction, together with modern experiments generally support these concerns. However, the physiological costs of...
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ftcaltechauth:oai:authors.library.caltech.edu:ay67y-5sk86 2024-06-23T07:55:50+00:00 Energetic Costs of Calcification Under Ocean Acidification Spalding, Christopher Finnegan, Seth Fischer, Woodward W. 2017-05 https://doi.org/10.1002/2016GB005597 unknown American Geophysical Union https://doi.org/10.1002/2016GB005597 oai:authors.library.caltech.edu:ay67y-5sk86 eprintid:77249 resolverid:CaltechAUTHORS:20170508-083356931 info:eu-repo/semantics/openAccess Other Global Biogeochemical Cycles, 31(5), 866-877, (2017-05) Acidification Biomineralization Extinction info:eu-repo/semantics/article 2017 ftcaltechauth https://doi.org/10.1002/2016GB005597 2024-06-12T03:13:34Z Anthropogenic ocean acidification threatens to negatively impact marine organisms that precipitate calcium carbonate skeletons. Past geological events, such as the Permian-Triassic Mass Extinction, together with modern experiments generally support these concerns. However, the physiological costs of producing a calcium carbonate skeleton under different acidification scenarios remain poorly understood. Here we present an idealized mathematical model to quantify whole-skeleton costs, concluding that they rise only modestly (up to ∼10%) under acidification expected for 2100. The modest magnitude of this effect reflects in part the low energetic cost of inorganic, calcium carbonate relative to the proteinaceous organic matrix component of skeletons. Our analysis does, however, point to an important kinetic constraint that depends on seawater carbonate chemistry, and we hypothesize that the impact of acidification is more likely to cause extinctions within groups where the timescale of larval development is tightly constrained. The cheapness of carbonate skeletons compared to organic materials also helps explain the widespread evolutionary convergence upon calcification within the metazoa. © 2017 American Geophysical Union. Received 10 DEC 2016; Accepted 4 MAY 2017; Accepted article online 5 MAY 2017; Published online 21 MAY 2017. This work was supported by a NASA NESSF Graduate Fellowship in Earth and Planetary Science (C.S.), the Agouron Institute, and a Packard Fellowship in Science and Engineering (W.F.). We would like to thank Christina Frieder, Adam Subhas, and Jess Adkins for helpful feedback. The data used are listed in the references, figures, and supporting information. Published - e4a2adead653f312503cdd945100d468325f37966d73504caaa72530d5a6518a.pdf Supplemental Material - 2016GB005597-T-sup-0001-Text_20SI-S01_AA.pdf Supplemental Material - 2016GB005597-T-sup-0001-Text_20SI-S01_AA.tex Supplemental Material - 2016GB005597-T-sup-0002-Figure_20SI-S01_AA.pdf Supplemental Material - ... Article in Journal/Newspaper Ocean acidification Caltech Authors (California Institute of Technology) Adkins ENVELOPE(-62.017,-62.017,-73.076,-73.076) Global Biogeochemical Cycles 31 5 866 877 |
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Open Polar |
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Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
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unknown |
topic |
Acidification Biomineralization Extinction |
spellingShingle |
Acidification Biomineralization Extinction Spalding, Christopher Finnegan, Seth Fischer, Woodward W. Energetic Costs of Calcification Under Ocean Acidification |
topic_facet |
Acidification Biomineralization Extinction |
description |
Anthropogenic ocean acidification threatens to negatively impact marine organisms that precipitate calcium carbonate skeletons. Past geological events, such as the Permian-Triassic Mass Extinction, together with modern experiments generally support these concerns. However, the physiological costs of producing a calcium carbonate skeleton under different acidification scenarios remain poorly understood. Here we present an idealized mathematical model to quantify whole-skeleton costs, concluding that they rise only modestly (up to ∼10%) under acidification expected for 2100. The modest magnitude of this effect reflects in part the low energetic cost of inorganic, calcium carbonate relative to the proteinaceous organic matrix component of skeletons. Our analysis does, however, point to an important kinetic constraint that depends on seawater carbonate chemistry, and we hypothesize that the impact of acidification is more likely to cause extinctions within groups where the timescale of larval development is tightly constrained. The cheapness of carbonate skeletons compared to organic materials also helps explain the widespread evolutionary convergence upon calcification within the metazoa. © 2017 American Geophysical Union. Received 10 DEC 2016; Accepted 4 MAY 2017; Accepted article online 5 MAY 2017; Published online 21 MAY 2017. This work was supported by a NASA NESSF Graduate Fellowship in Earth and Planetary Science (C.S.), the Agouron Institute, and a Packard Fellowship in Science and Engineering (W.F.). We would like to thank Christina Frieder, Adam Subhas, and Jess Adkins for helpful feedback. The data used are listed in the references, figures, and supporting information. Published - e4a2adead653f312503cdd945100d468325f37966d73504caaa72530d5a6518a.pdf Supplemental Material - 2016GB005597-T-sup-0001-Text_20SI-S01_AA.pdf Supplemental Material - 2016GB005597-T-sup-0001-Text_20SI-S01_AA.tex Supplemental Material - 2016GB005597-T-sup-0002-Figure_20SI-S01_AA.pdf Supplemental Material - ... |
format |
Article in Journal/Newspaper |
author |
Spalding, Christopher Finnegan, Seth Fischer, Woodward W. |
author_facet |
Spalding, Christopher Finnegan, Seth Fischer, Woodward W. |
author_sort |
Spalding, Christopher |
title |
Energetic Costs of Calcification Under Ocean Acidification |
title_short |
Energetic Costs of Calcification Under Ocean Acidification |
title_full |
Energetic Costs of Calcification Under Ocean Acidification |
title_fullStr |
Energetic Costs of Calcification Under Ocean Acidification |
title_full_unstemmed |
Energetic Costs of Calcification Under Ocean Acidification |
title_sort |
energetic costs of calcification under ocean acidification |
publisher |
American Geophysical Union |
publishDate |
2017 |
url |
https://doi.org/10.1002/2016GB005597 |
long_lat |
ENVELOPE(-62.017,-62.017,-73.076,-73.076) |
geographic |
Adkins |
geographic_facet |
Adkins |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Global Biogeochemical Cycles, 31(5), 866-877, (2017-05) |
op_relation |
https://doi.org/10.1002/2016GB005597 oai:authors.library.caltech.edu:ay67y-5sk86 eprintid:77249 resolverid:CaltechAUTHORS:20170508-083356931 |
op_rights |
info:eu-repo/semantics/openAccess Other |
op_doi |
https://doi.org/10.1002/2016GB005597 |
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Global Biogeochemical Cycles |
container_volume |
31 |
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5 |
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866 |
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877 |
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