The Omega myth: what really drives lower calcification rates in an acidifying ocean
Abstract The literature on ocean acidification (OA) contains a prevalent misconception that reduced organismal calcification rates in an acidifying ocean are driven by a reduction in carbonate ion (CO32−) substrate availability (e.g. Omega or Ω). However, recent research in diverse organisms suggest...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsv075 http://academic.oup.com/icesjms/article-pdf/73/3/558/31231542/fsv075.pdf |
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croxfordunivpr:10.1093/icesjms/fsv075 2024-04-28T08:34:52+00:00 The Omega myth: what really drives lower calcification rates in an acidifying ocean Cyronak, Tyler Schulz, Kai G. Jokiel, Paul L. 2015 http://dx.doi.org/10.1093/icesjms/fsv075 http://academic.oup.com/icesjms/article-pdf/73/3/558/31231542/fsv075.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 73, issue 3, page 558-562 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2015 croxfordunivpr https://doi.org/10.1093/icesjms/fsv075 2024-04-02T08:06:59Z Abstract The literature on ocean acidification (OA) contains a prevalent misconception that reduced organismal calcification rates in an acidifying ocean are driven by a reduction in carbonate ion (CO32−) substrate availability (e.g. Omega or Ω). However, recent research in diverse organisms suggests that a reduction in seawater pH (i.e. increasing proton concentrations, [H+]) is the most likely driver of reduced calcification rates in these organisms. OA leads to higher [H+] in seawater which alters the proton gradient between internal cellular reservoirs and external bulk seawater, making it difficult for organisms to maintain pH homeostasis. Biologically mediated calcification is a complex process, so it is unlikely that simple CO32− substrate limitation is responsible for the observed decreases in calcification rates under OA conditions. Despite these inherent complexities, current predictions concerning the fate of calcifying organisms in an acidifying ocean have relied on the relationship between calcification rates and Ω. To more accurately predict how OA will affect the calcification of marine organisms, and consequently the global carbon cycle, we need to further elucidate the mechanisms driving observed decreases in calcification under acidified conditions. Article in Journal/Newspaper Ocean acidification Oxford University Press ICES Journal of Marine Science 73 3 558 562 |
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Oxford University Press |
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English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
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Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Cyronak, Tyler Schulz, Kai G. Jokiel, Paul L. The Omega myth: what really drives lower calcification rates in an acidifying ocean |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract The literature on ocean acidification (OA) contains a prevalent misconception that reduced organismal calcification rates in an acidifying ocean are driven by a reduction in carbonate ion (CO32−) substrate availability (e.g. Omega or Ω). However, recent research in diverse organisms suggests that a reduction in seawater pH (i.e. increasing proton concentrations, [H+]) is the most likely driver of reduced calcification rates in these organisms. OA leads to higher [H+] in seawater which alters the proton gradient between internal cellular reservoirs and external bulk seawater, making it difficult for organisms to maintain pH homeostasis. Biologically mediated calcification is a complex process, so it is unlikely that simple CO32− substrate limitation is responsible for the observed decreases in calcification rates under OA conditions. Despite these inherent complexities, current predictions concerning the fate of calcifying organisms in an acidifying ocean have relied on the relationship between calcification rates and Ω. To more accurately predict how OA will affect the calcification of marine organisms, and consequently the global carbon cycle, we need to further elucidate the mechanisms driving observed decreases in calcification under acidified conditions. |
format |
Article in Journal/Newspaper |
author |
Cyronak, Tyler Schulz, Kai G. Jokiel, Paul L. |
author_facet |
Cyronak, Tyler Schulz, Kai G. Jokiel, Paul L. |
author_sort |
Cyronak, Tyler |
title |
The Omega myth: what really drives lower calcification rates in an acidifying ocean |
title_short |
The Omega myth: what really drives lower calcification rates in an acidifying ocean |
title_full |
The Omega myth: what really drives lower calcification rates in an acidifying ocean |
title_fullStr |
The Omega myth: what really drives lower calcification rates in an acidifying ocean |
title_full_unstemmed |
The Omega myth: what really drives lower calcification rates in an acidifying ocean |
title_sort |
omega myth: what really drives lower calcification rates in an acidifying ocean |
publisher |
Oxford University Press (OUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1093/icesjms/fsv075 http://academic.oup.com/icesjms/article-pdf/73/3/558/31231542/fsv075.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ICES Journal of Marine Science volume 73, issue 3, page 558-562 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsv075 |
container_title |
ICES Journal of Marine Science |
container_volume |
73 |
container_issue |
3 |
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558 |
op_container_end_page |
562 |
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1797591404609798144 |