Warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the Palaeocene–Eocene Thermal Maximum
Past global warming events such as the Palaeocene–Eocene Thermal Maximum (PETM—56 Ma) are attributed to the release of vast amounts of carbon into the ocean, atmosphere and biosphere with recovery ascribed to a combination of silicate weathering and organic carbon burial. The phytoplanktonic nannopl...
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ftpubmed:oai:pubmedcentral.nih.gov:6127380 2023-05-15T17:51:42+02:00 Warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the Palaeocene–Eocene Thermal Maximum Gibbs, Samantha J. Sheward, Rosie M. Bown, Paul R. Poulton, Alex J. Alvarez, Sarah A. 2018-10-13 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6127380/ http://www.ncbi.nlm.nih.gov/pubmed/30177560 https://doi.org/10.1098/rsta.2017.0075 en eng The Royal Society Publishing http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6127380/ http://www.ncbi.nlm.nih.gov/pubmed/30177560 http://dx.doi.org/10.1098/rsta.2017.0075 © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Articles Text 2018 ftpubmed https://doi.org/10.1098/rsta.2017.0075 2018-09-16T00:17:59Z Past global warming events such as the Palaeocene–Eocene Thermal Maximum (PETM—56 Ma) are attributed to the release of vast amounts of carbon into the ocean, atmosphere and biosphere with recovery ascribed to a combination of silicate weathering and organic carbon burial. The phytoplanktonic nannoplankton are major contributors of organic and inorganic carbon but their role in this recovery process remains poorly understood and complicated by their contribution to marine calcification. Biocalcification is implicated not only in long-term carbon burial but also both short-term positive and negative climatic feedbacks associated with seawater buffering and responses to ocean acidification. Here, we use exceptional records of preserved fossil coccospheres to reconstruct cell size distribution, biomass production (particulate organic carbon, POC) and (particulate) inorganic carbon (PIC) yields of three contrasting nannoplankton communities (Bass River—outer shelf, Maud Rise—uppermost bathyal, Shatsky Rise—open ocean) through the PETM onset and recovery. Each of the sites shows contrasting community responses across the PETM as a function of their taxic composition and total community biomass. Our results indicate that nannoplankton PIC:POC had no role in short-term climate feedback and, as such, their importance as a source of CO2 to the environment is a red herring. It is nevertheless likely that shifts to greater numbers of smaller cells at the shelf site in particular led to greater carbon transfer efficiency, and that nannoplankton productivity and export across the shelves had a significant modulating effect on carbon sequestration during the PETM recovery. Text Ocean acidification PubMed Central (PMC) Maud Rise ENVELOPE(3.000,3.000,-66.000,-66.000) Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376 2130 20170075 |
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Articles Gibbs, Samantha J. Sheward, Rosie M. Bown, Paul R. Poulton, Alex J. Alvarez, Sarah A. Warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the Palaeocene–Eocene Thermal Maximum |
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description |
Past global warming events such as the Palaeocene–Eocene Thermal Maximum (PETM—56 Ma) are attributed to the release of vast amounts of carbon into the ocean, atmosphere and biosphere with recovery ascribed to a combination of silicate weathering and organic carbon burial. The phytoplanktonic nannoplankton are major contributors of organic and inorganic carbon but their role in this recovery process remains poorly understood and complicated by their contribution to marine calcification. Biocalcification is implicated not only in long-term carbon burial but also both short-term positive and negative climatic feedbacks associated with seawater buffering and responses to ocean acidification. Here, we use exceptional records of preserved fossil coccospheres to reconstruct cell size distribution, biomass production (particulate organic carbon, POC) and (particulate) inorganic carbon (PIC) yields of three contrasting nannoplankton communities (Bass River—outer shelf, Maud Rise—uppermost bathyal, Shatsky Rise—open ocean) through the PETM onset and recovery. Each of the sites shows contrasting community responses across the PETM as a function of their taxic composition and total community biomass. Our results indicate that nannoplankton PIC:POC had no role in short-term climate feedback and, as such, their importance as a source of CO2 to the environment is a red herring. It is nevertheless likely that shifts to greater numbers of smaller cells at the shelf site in particular led to greater carbon transfer efficiency, and that nannoplankton productivity and export across the shelves had a significant modulating effect on carbon sequestration during the PETM recovery. |
format |
Text |
author |
Gibbs, Samantha J. Sheward, Rosie M. Bown, Paul R. Poulton, Alex J. Alvarez, Sarah A. |
author_facet |
Gibbs, Samantha J. Sheward, Rosie M. Bown, Paul R. Poulton, Alex J. Alvarez, Sarah A. |
author_sort |
Gibbs, Samantha J. |
title |
Warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the Palaeocene–Eocene Thermal Maximum |
title_short |
Warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the Palaeocene–Eocene Thermal Maximum |
title_full |
Warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the Palaeocene–Eocene Thermal Maximum |
title_fullStr |
Warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the Palaeocene–Eocene Thermal Maximum |
title_full_unstemmed |
Warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the Palaeocene–Eocene Thermal Maximum |
title_sort |
warm plankton soup and red herrings: calcareous nannoplankton cellular communities and the palaeocene–eocene thermal maximum |
publisher |
The Royal Society Publishing |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6127380/ http://www.ncbi.nlm.nih.gov/pubmed/30177560 https://doi.org/10.1098/rsta.2017.0075 |
long_lat |
ENVELOPE(3.000,3.000,-66.000,-66.000) |
geographic |
Maud Rise |
geographic_facet |
Maud Rise |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6127380/ http://www.ncbi.nlm.nih.gov/pubmed/30177560 http://dx.doi.org/10.1098/rsta.2017.0075 |
op_rights |
© 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsta.2017.0075 |
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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
376 |
container_issue |
2130 |
container_start_page |
20170075 |
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