Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes
Antarctic pack ice is inhabited by a diverse and active microbial community reliant on nutrients for growth. Seeking patterns and overlooked processes, we performed a large-scale compilation of macro-nutrient data (hereafter termed nutrients) in Antarctic pack ice (306 ice-cores collected from 19 re...
Published in: | Elementa: Science of the Anthropocene |
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Online Access: | https://doi.org/10.1525/elementa.217 https://doaj.org/article/b24837a7f55b4e87a5683ca6f6ee4fd9 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:b24837a7f55b4e87a5683ca6f6ee4fd9 2023-05-15T14:00:43+02:00 Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes François Fripiat Klaus M. Meiners Martin Vancoppenolle Stathys Papadimitriou David N. Thomas Stephen F. Ackley Kevin R. Arrigo Gauthier Carnat Stefano Cozzi Bruno Delille Gerhard S. Dieckmann Robert B. Dunbar Agneta Fransson Gerhard Kattner Hilary Kennedy Delphine Lannuzel David R. Munro Daiki Nomura Janne-Markus Rintala Véronique Schoemann Jacqueline Stefels Nadja Steiner Jean-Louis Tison 2017-03-01 https://doi.org/10.1525/elementa.217 https://doaj.org/article/b24837a7f55b4e87a5683ca6f6ee4fd9 en eng BioOne 2325-1026 doi:10.1525/elementa.217 https://doaj.org/article/b24837a7f55b4e87a5683ca6f6ee4fd9 undefined Elementa: Science of the Anthropocene, Vol 5 (2017) Nutrients sea ice Antarctica geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2017 fttriple https://doi.org/10.1525/elementa.217 2023-01-22T17:58:07Z Antarctic pack ice is inhabited by a diverse and active microbial community reliant on nutrients for growth. Seeking patterns and overlooked processes, we performed a large-scale compilation of macro-nutrient data (hereafter termed nutrients) in Antarctic pack ice (306 ice-cores collected from 19 research cruises). Dissolved inorganic nitrogen and silicic acid concentrations change with time, as expected from a seasonally productive ecosystem. In winter, salinity-normalized nitrate and silicic acid concentrations (C*) in sea ice are close to seawater concentrations (Cw), indicating little or no biological activity. In spring, nitrate and silicic acid concentrations become partially depleted with respect to seawater (C* Cw). The phosphate excess could be explained by a greater allocation to phosphorus-rich biomolecules during ice algal blooms coupled with convective loss of excess dissolved nitrogen, preferential remineralization of phosphorus, and/or phosphate adsorption onto metal-organic complexes. Ammonium also appears to be efficiently adsorbed onto organic matter, with likely consequences to nitrogen mobility and availability. This dataset supports the view that the sea ice microbial community is highly efficient at processing nutrients but with a dynamic quite different from that in oceanic surface waters calling for focused future investigations. Article in Journal/Newspaper Antarc* Antarctic Antarctica Sea ice Unknown Antarctic Elementa: Science of the Anthropocene 5 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Nutrients sea ice Antarctica geo envir |
spellingShingle |
Nutrients sea ice Antarctica geo envir François Fripiat Klaus M. Meiners Martin Vancoppenolle Stathys Papadimitriou David N. Thomas Stephen F. Ackley Kevin R. Arrigo Gauthier Carnat Stefano Cozzi Bruno Delille Gerhard S. Dieckmann Robert B. Dunbar Agneta Fransson Gerhard Kattner Hilary Kennedy Delphine Lannuzel David R. Munro Daiki Nomura Janne-Markus Rintala Véronique Schoemann Jacqueline Stefels Nadja Steiner Jean-Louis Tison Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes |
topic_facet |
Nutrients sea ice Antarctica geo envir |
description |
Antarctic pack ice is inhabited by a diverse and active microbial community reliant on nutrients for growth. Seeking patterns and overlooked processes, we performed a large-scale compilation of macro-nutrient data (hereafter termed nutrients) in Antarctic pack ice (306 ice-cores collected from 19 research cruises). Dissolved inorganic nitrogen and silicic acid concentrations change with time, as expected from a seasonally productive ecosystem. In winter, salinity-normalized nitrate and silicic acid concentrations (C*) in sea ice are close to seawater concentrations (Cw), indicating little or no biological activity. In spring, nitrate and silicic acid concentrations become partially depleted with respect to seawater (C* Cw). The phosphate excess could be explained by a greater allocation to phosphorus-rich biomolecules during ice algal blooms coupled with convective loss of excess dissolved nitrogen, preferential remineralization of phosphorus, and/or phosphate adsorption onto metal-organic complexes. Ammonium also appears to be efficiently adsorbed onto organic matter, with likely consequences to nitrogen mobility and availability. This dataset supports the view that the sea ice microbial community is highly efficient at processing nutrients but with a dynamic quite different from that in oceanic surface waters calling for focused future investigations. |
format |
Article in Journal/Newspaper |
author |
François Fripiat Klaus M. Meiners Martin Vancoppenolle Stathys Papadimitriou David N. Thomas Stephen F. Ackley Kevin R. Arrigo Gauthier Carnat Stefano Cozzi Bruno Delille Gerhard S. Dieckmann Robert B. Dunbar Agneta Fransson Gerhard Kattner Hilary Kennedy Delphine Lannuzel David R. Munro Daiki Nomura Janne-Markus Rintala Véronique Schoemann Jacqueline Stefels Nadja Steiner Jean-Louis Tison |
author_facet |
François Fripiat Klaus M. Meiners Martin Vancoppenolle Stathys Papadimitriou David N. Thomas Stephen F. Ackley Kevin R. Arrigo Gauthier Carnat Stefano Cozzi Bruno Delille Gerhard S. Dieckmann Robert B. Dunbar Agneta Fransson Gerhard Kattner Hilary Kennedy Delphine Lannuzel David R. Munro Daiki Nomura Janne-Markus Rintala Véronique Schoemann Jacqueline Stefels Nadja Steiner Jean-Louis Tison |
author_sort |
François Fripiat |
title |
Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes |
title_short |
Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes |
title_full |
Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes |
title_fullStr |
Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes |
title_full_unstemmed |
Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes |
title_sort |
macro-nutrient concentrations in antarctic pack ice: overall patterns and overlooked processes |
publisher |
BioOne |
publishDate |
2017 |
url |
https://doi.org/10.1525/elementa.217 https://doaj.org/article/b24837a7f55b4e87a5683ca6f6ee4fd9 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Sea ice |
op_source |
Elementa: Science of the Anthropocene, Vol 5 (2017) |
op_relation |
2325-1026 doi:10.1525/elementa.217 https://doaj.org/article/b24837a7f55b4e87a5683ca6f6ee4fd9 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1525/elementa.217 |
container_title |
Elementa: Science of the Anthropocene |
container_volume |
5 |
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1766270061178257408 |