Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification
Ocean acidification (OA) will affect marine biotas from the organism to the ecosystem level. Yet, the consequences for the biological carbon pump and thereby the oceanic sink for atmospheric CO 2 are still unclear. Here we show that OA considerably alters the C/N ratio of organic-matter export (C/N...
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Online Access: | https://doi.org/10.1038/s41558-020-00915-5 http://ecite.utas.edu.au/141467 |
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ftunivtasecite:oai:ecite.utas.edu.au:141467 2023-05-15T17:50:09+02:00 Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification Taucher, J Boxhammer, T Bach, LT Paul, AJ Schartau, M Stange, P Riebesell, U 2021 https://doi.org/10.1038/s41558-020-00915-5 http://ecite.utas.edu.au/141467 en eng Nature Publishing Group http://dx.doi.org/10.1038/s41558-020-00915-5 Taucher, J and Boxhammer, T and Bach, LT and Paul, AJ and Schartau, M and Stange, P and Riebesell, U, Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification, Nature Climate Change, 11 pp. 52-57. ISSN 1758-678X (2021) [Refereed Article] http://ecite.utas.edu.au/141467 Earth Sciences Oceanography Biological oceanography Refereed Article PeerReviewed 2021 ftunivtasecite https://doi.org/10.1038/s41558-020-00915-5 2022-08-29T22:18:09Z Ocean acidification (OA) will affect marine biotas from the organism to the ecosystem level. Yet, the consequences for the biological carbon pump and thereby the oceanic sink for atmospheric CO 2 are still unclear. Here we show that OA considerably alters the C/N ratio of organic-matter export (C/N export ), a key factor determining efficiency of the biological pump. By synthesizing sediment-trap data from in situ mesocosm studies in different marine biomes, we find distinct but highly variable impacts of OA on C/N export , reaching up to a 20% increase/decrease under partial pressure of CO 2 effects on a variety of plankton taxa and corresponding shifts in food-web structure. Notably, our findings suggest a pivotal role of heterotrophic processes in controlling the response of C/N export to OA, thus contradicting the paradigm of primary producers as the principal driver of biogeochemical responses to ocean change. Article in Journal/Newspaper Ocean acidification eCite UTAS (University of Tasmania) Nature Climate Change 11 1 52 57 |
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eCite UTAS (University of Tasmania) |
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English |
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Earth Sciences Oceanography Biological oceanography |
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Earth Sciences Oceanography Biological oceanography Taucher, J Boxhammer, T Bach, LT Paul, AJ Schartau, M Stange, P Riebesell, U Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification |
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Earth Sciences Oceanography Biological oceanography |
description |
Ocean acidification (OA) will affect marine biotas from the organism to the ecosystem level. Yet, the consequences for the biological carbon pump and thereby the oceanic sink for atmospheric CO 2 are still unclear. Here we show that OA considerably alters the C/N ratio of organic-matter export (C/N export ), a key factor determining efficiency of the biological pump. By synthesizing sediment-trap data from in situ mesocosm studies in different marine biomes, we find distinct but highly variable impacts of OA on C/N export , reaching up to a 20% increase/decrease under partial pressure of CO 2 effects on a variety of plankton taxa and corresponding shifts in food-web structure. Notably, our findings suggest a pivotal role of heterotrophic processes in controlling the response of C/N export to OA, thus contradicting the paradigm of primary producers as the principal driver of biogeochemical responses to ocean change. |
format |
Article in Journal/Newspaper |
author |
Taucher, J Boxhammer, T Bach, LT Paul, AJ Schartau, M Stange, P Riebesell, U |
author_facet |
Taucher, J Boxhammer, T Bach, LT Paul, AJ Schartau, M Stange, P Riebesell, U |
author_sort |
Taucher, J |
title |
Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification |
title_short |
Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification |
title_full |
Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification |
title_fullStr |
Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification |
title_full_unstemmed |
Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification |
title_sort |
changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification |
publisher |
Nature Publishing Group |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41558-020-00915-5 http://ecite.utas.edu.au/141467 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://dx.doi.org/10.1038/s41558-020-00915-5 Taucher, J and Boxhammer, T and Bach, LT and Paul, AJ and Schartau, M and Stange, P and Riebesell, U, Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification, Nature Climate Change, 11 pp. 52-57. ISSN 1758-678X (2021) [Refereed Article] http://ecite.utas.edu.au/141467 |
op_doi |
https://doi.org/10.1038/s41558-020-00915-5 |
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Nature Climate Change |
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11 |
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1 |
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52 |
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57 |
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1766156762248904704 |