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Temporal controls on silicic acid utilisation along the West Antarctic Peninsula

The impact of climatic change along the Antarctica Peninsula has been widely debated in light of atmospheric/oceanic warming and increases in glacial melt over the past half century. Particular concern exists over the impact of these changes on marine ecosystems, not only on primary producers but al...

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Autores principales: Swann, George E. A., Pike, Jennifer, Leng, Melanie J., Sloane, Hilary J., Snelling, Andrea M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355812/
https://www.ncbi.nlm.nih.gov/pubmed/28287084
http://dx.doi.org/10.1038/ncomms14645
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author Swann, George E. A.
Pike, Jennifer
Leng, Melanie J.
Sloane, Hilary J.
Snelling, Andrea M.
author_facet Swann, George E. A.
Pike, Jennifer
Leng, Melanie J.
Sloane, Hilary J.
Snelling, Andrea M.
author_sort Swann, George E. A.
collection PubMed
description The impact of climatic change along the Antarctica Peninsula has been widely debated in light of atmospheric/oceanic warming and increases in glacial melt over the past half century. Particular concern exists over the impact of these changes on marine ecosystems, not only on primary producers but also on higher trophic levels. Here we present a record detailing of the historical controls on the biogeochemical cycling of silicic acid [Si(OH)(4)] on the west Antarctica Peninsula margin, a region in which the modern phytoplankton environment is constrained by seasonal sea ice. We demonstrate that Si(OH)(4) cycling through the Holocene alternates between being primarily regulated by sea ice or glacial discharge from the surrounding grounded ice sheet. With further climate-driven change and melting forecast for the twenty-first century, our findings document the potential for biogeochemical cycling and multi-trophic interactions along the peninsula to be increasingly regulated by glacial discharge, altering food-web interactions.
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spelling pubmed-53558122017-04-17 Temporal controls on silicic acid utilisation along the West Antarctic Peninsula Swann, George E. A. Pike, Jennifer Leng, Melanie J. Sloane, Hilary J. Snelling, Andrea M. Nat Commun Article The impact of climatic change along the Antarctica Peninsula has been widely debated in light of atmospheric/oceanic warming and increases in glacial melt over the past half century. Particular concern exists over the impact of these changes on marine ecosystems, not only on primary producers but also on higher trophic levels. Here we present a record detailing of the historical controls on the biogeochemical cycling of silicic acid [Si(OH)(4)] on the west Antarctica Peninsula margin, a region in which the modern phytoplankton environment is constrained by seasonal sea ice. We demonstrate that Si(OH)(4) cycling through the Holocene alternates between being primarily regulated by sea ice or glacial discharge from the surrounding grounded ice sheet. With further climate-driven change and melting forecast for the twenty-first century, our findings document the potential for biogeochemical cycling and multi-trophic interactions along the peninsula to be increasingly regulated by glacial discharge, altering food-web interactions. Nature Publishing Group 2017-03-13 /pmc/articles/PMC5355812/ /pubmed/28287084 http://dx.doi.org/10.1038/ncomms14645 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Swann, George E. A.
Pike, Jennifer
Leng, Melanie J.
Sloane, Hilary J.
Snelling, Andrea M.
Temporal controls on silicic acid utilisation along the West Antarctic Peninsula
title Temporal controls on silicic acid utilisation along the West Antarctic Peninsula
title_full Temporal controls on silicic acid utilisation along the West Antarctic Peninsula
title_fullStr Temporal controls on silicic acid utilisation along the West Antarctic Peninsula
title_full_unstemmed Temporal controls on silicic acid utilisation along the West Antarctic Peninsula
title_short Temporal controls on silicic acid utilisation along the West Antarctic Peninsula
title_sort temporal controls on silicic acid utilisation along the west antarctic peninsula
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355812/
https://www.ncbi.nlm.nih.gov/pubmed/28287084
http://dx.doi.org/10.1038/ncomms14645
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