Ocean acidification and marine trace gas emissions
<jats:p> The oceanic uptake of man-made CO <jats:sub>2</jats:sub> emissions is resulting in a measureable decrease in the pH of the surface oceans, a process which is predicted to have severe consequences for marine biological and biogeochemical processes [Caldeira K, Wickett ME (2...
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ftunivessex:oai:repository.essex.ac.uk:979 2023-05-15T17:50:27+02:00 Ocean acidification and marine trace gas emissions Hopkins, Frances E Turner, Suzanne M Nightingale, Philip D Steinke, Michael Bakker, Dorothee Liss, Peter S 2010-01-12 http://repository.essex.ac.uk/979/ https://doi.org/10.1073/pnas.0907163107 unknown Proceedings of the National Academy of Sciences Hopkins, Frances E and Turner, Suzanne M and Nightingale, Philip D and Steinke, Michael and Bakker, Dorothee and Liss, Peter S (2010) 'Ocean acidification and marine trace gas emissions.' Proceedings of the National Academy of Sciences, 107 (2). pp. 760-765. ISSN 0027-8424 QH301 Biology Article PeerReviewed 2010 ftunivessex https://doi.org/10.1073/pnas.0907163107 2022-08-18T22:38:51Z <jats:p> The oceanic uptake of man-made CO <jats:sub>2</jats:sub> emissions is resulting in a measureable decrease in the pH of the surface oceans, a process which is predicted to have severe consequences for marine biological and biogeochemical processes [Caldeira K, Wickett ME (2003) <jats:italic>Nature</jats:italic> 425:365; The Royal Society (2005) <jats:italic>Policy Document 12/05</jats:italic> (Royal Society, London)]. Here, we describe results showing how a doubling of current atmospheric CO <jats:sub>2</jats:sub> affects the production of a suite of atmospherically important marine trace gases. Two CO <jats:sub>2</jats:sub> treatments were used during a mesocosm CO <jats:sub>2</jats:sub> perturbation experiment in a Norwegian fjord (present day: ∼380 ppmv and year 2100: ∼750 ppmv), and phytoplankton blooms were stimulated by the addition of nutrients. Seawater trace gas concentrations were monitored over the growth and decline of the blooms, revealing that concentrations of methyl iodide and dimethylsulfide were significantly reduced under high CO <jats:sub>2.</jats:sub> Additionally, large reductions in concentrations of other iodocarbons were observed. The response of bromocarbons to high CO <jats:sub>2</jats:sub> was less clear cut. Further research is now required to understand how ocean acidification might impact on global marine trace gas fluxes and how these impacts might feed through to changes in the earth's future climate and atmospheric chemistry. </jats:p> Article in Journal/Newspaper Ocean acidification University of Essex Research Repository Proceedings of the National Academy of Sciences 107 2 760 765 |
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University of Essex Research Repository |
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QH301 Biology |
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QH301 Biology Hopkins, Frances E Turner, Suzanne M Nightingale, Philip D Steinke, Michael Bakker, Dorothee Liss, Peter S Ocean acidification and marine trace gas emissions |
topic_facet |
QH301 Biology |
description |
<jats:p> The oceanic uptake of man-made CO <jats:sub>2</jats:sub> emissions is resulting in a measureable decrease in the pH of the surface oceans, a process which is predicted to have severe consequences for marine biological and biogeochemical processes [Caldeira K, Wickett ME (2003) <jats:italic>Nature</jats:italic> 425:365; The Royal Society (2005) <jats:italic>Policy Document 12/05</jats:italic> (Royal Society, London)]. Here, we describe results showing how a doubling of current atmospheric CO <jats:sub>2</jats:sub> affects the production of a suite of atmospherically important marine trace gases. Two CO <jats:sub>2</jats:sub> treatments were used during a mesocosm CO <jats:sub>2</jats:sub> perturbation experiment in a Norwegian fjord (present day: ∼380 ppmv and year 2100: ∼750 ppmv), and phytoplankton blooms were stimulated by the addition of nutrients. Seawater trace gas concentrations were monitored over the growth and decline of the blooms, revealing that concentrations of methyl iodide and dimethylsulfide were significantly reduced under high CO <jats:sub>2.</jats:sub> Additionally, large reductions in concentrations of other iodocarbons were observed. The response of bromocarbons to high CO <jats:sub>2</jats:sub> was less clear cut. Further research is now required to understand how ocean acidification might impact on global marine trace gas fluxes and how these impacts might feed through to changes in the earth's future climate and atmospheric chemistry. </jats:p> |
format |
Article in Journal/Newspaper |
author |
Hopkins, Frances E Turner, Suzanne M Nightingale, Philip D Steinke, Michael Bakker, Dorothee Liss, Peter S |
author_facet |
Hopkins, Frances E Turner, Suzanne M Nightingale, Philip D Steinke, Michael Bakker, Dorothee Liss, Peter S |
author_sort |
Hopkins, Frances E |
title |
Ocean acidification and marine trace gas emissions |
title_short |
Ocean acidification and marine trace gas emissions |
title_full |
Ocean acidification and marine trace gas emissions |
title_fullStr |
Ocean acidification and marine trace gas emissions |
title_full_unstemmed |
Ocean acidification and marine trace gas emissions |
title_sort |
ocean acidification and marine trace gas emissions |
publisher |
Proceedings of the National Academy of Sciences |
publishDate |
2010 |
url |
http://repository.essex.ac.uk/979/ https://doi.org/10.1073/pnas.0907163107 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Hopkins, Frances E and Turner, Suzanne M and Nightingale, Philip D and Steinke, Michael and Bakker, Dorothee and Liss, Peter S (2010) 'Ocean acidification and marine trace gas emissions.' Proceedings of the National Academy of Sciences, 107 (2). pp. 760-765. ISSN 0027-8424 |
op_doi |
https://doi.org/10.1073/pnas.0907163107 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
107 |
container_issue |
2 |
container_start_page |
760 |
op_container_end_page |
765 |
_version_ |
1766157207817158656 |