Glacial melt disturbance shifts community metabolism of an Antarctic seafloor ecosystem from net autotrophy to heterotrophy
Climate change-induced glacial melt affects benthic ecosystems along the West Antarctic Peninsula, but current understanding of the effects on benthic primary production and respiration is limited. Here we demonstrate with a series of in situ community metabolism measurements that climate-related gl...
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ftpubmed:oai:pubmedcentral.nih.gov:7846736 2023-05-15T13:46:25+02:00 Glacial melt disturbance shifts community metabolism of an Antarctic seafloor ecosystem from net autotrophy to heterotrophy Braeckman, Ulrike Pasotti, Francesca Hoffmann, Ralf Vázquez, Susana Wulff, Angela Schloss, Irene R. Falk, Ulrike Deregibus, Dolores Lefaible, Nene Torstensson, Anders Al-Handal, Adil Wenzhöfer, Frank Vanreusel, Ann 2021-01-29 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7846736/ http://www.ncbi.nlm.nih.gov/pubmed/33514890 https://doi.org/10.1038/s42003-021-01673-6 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7846736/ http://www.ncbi.nlm.nih.gov/pubmed/33514890 http://dx.doi.org/10.1038/s42003-021-01673-6 © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Commun Biol Article Text 2021 ftpubmed https://doi.org/10.1038/s42003-021-01673-6 2021-02-14T01:21:14Z Climate change-induced glacial melt affects benthic ecosystems along the West Antarctic Peninsula, but current understanding of the effects on benthic primary production and respiration is limited. Here we demonstrate with a series of in situ community metabolism measurements that climate-related glacial melt disturbance shifts benthic communities from net autotrophy to heterotrophy. With little glacial melt disturbance (during cold El Niño spring 2015), clear waters enabled high benthic microalgal production, resulting in net autotrophic benthic communities. In contrast, water column turbidity caused by increased glacial melt run-off (summer 2015 and warm La Niña spring 2016) limited benthic microalgal production and turned the benthic communities net heterotrophic. Ongoing accelerations in glacial melt and run-off may steer shallow Antarctic seafloor ecosystems towards net heterotrophy, altering the metabolic balance of benthic communities and potentially impacting the carbon balance and food webs at the Antarctic seafloor. Text Antarc* Antarctic Antarctic Peninsula PubMed Central (PMC) Antarctic Antarctic Peninsula The Antarctic Communications Biology 4 1 |
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Article Braeckman, Ulrike Pasotti, Francesca Hoffmann, Ralf Vázquez, Susana Wulff, Angela Schloss, Irene R. Falk, Ulrike Deregibus, Dolores Lefaible, Nene Torstensson, Anders Al-Handal, Adil Wenzhöfer, Frank Vanreusel, Ann Glacial melt disturbance shifts community metabolism of an Antarctic seafloor ecosystem from net autotrophy to heterotrophy |
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description |
Climate change-induced glacial melt affects benthic ecosystems along the West Antarctic Peninsula, but current understanding of the effects on benthic primary production and respiration is limited. Here we demonstrate with a series of in situ community metabolism measurements that climate-related glacial melt disturbance shifts benthic communities from net autotrophy to heterotrophy. With little glacial melt disturbance (during cold El Niño spring 2015), clear waters enabled high benthic microalgal production, resulting in net autotrophic benthic communities. In contrast, water column turbidity caused by increased glacial melt run-off (summer 2015 and warm La Niña spring 2016) limited benthic microalgal production and turned the benthic communities net heterotrophic. Ongoing accelerations in glacial melt and run-off may steer shallow Antarctic seafloor ecosystems towards net heterotrophy, altering the metabolic balance of benthic communities and potentially impacting the carbon balance and food webs at the Antarctic seafloor. |
format |
Text |
author |
Braeckman, Ulrike Pasotti, Francesca Hoffmann, Ralf Vázquez, Susana Wulff, Angela Schloss, Irene R. Falk, Ulrike Deregibus, Dolores Lefaible, Nene Torstensson, Anders Al-Handal, Adil Wenzhöfer, Frank Vanreusel, Ann |
author_facet |
Braeckman, Ulrike Pasotti, Francesca Hoffmann, Ralf Vázquez, Susana Wulff, Angela Schloss, Irene R. Falk, Ulrike Deregibus, Dolores Lefaible, Nene Torstensson, Anders Al-Handal, Adil Wenzhöfer, Frank Vanreusel, Ann |
author_sort |
Braeckman, Ulrike |
title |
Glacial melt disturbance shifts community metabolism of an Antarctic seafloor ecosystem from net autotrophy to heterotrophy |
title_short |
Glacial melt disturbance shifts community metabolism of an Antarctic seafloor ecosystem from net autotrophy to heterotrophy |
title_full |
Glacial melt disturbance shifts community metabolism of an Antarctic seafloor ecosystem from net autotrophy to heterotrophy |
title_fullStr |
Glacial melt disturbance shifts community metabolism of an Antarctic seafloor ecosystem from net autotrophy to heterotrophy |
title_full_unstemmed |
Glacial melt disturbance shifts community metabolism of an Antarctic seafloor ecosystem from net autotrophy to heterotrophy |
title_sort |
glacial melt disturbance shifts community metabolism of an antarctic seafloor ecosystem from net autotrophy to heterotrophy |
publisher |
Nature Publishing Group UK |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7846736/ http://www.ncbi.nlm.nih.gov/pubmed/33514890 https://doi.org/10.1038/s42003-021-01673-6 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
Commun Biol |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7846736/ http://www.ncbi.nlm.nih.gov/pubmed/33514890 http://dx.doi.org/10.1038/s42003-021-01673-6 |
op_rights |
© The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s42003-021-01673-6 |
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Communications Biology |
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4 |
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