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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ftunivgent:oai:archive.ugent.be:8699044 2023-06-11T04:07:05+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 application/pdf https://biblio.ugent.be/publication/8699044 http://hdl.handle.net/1854/LU-8699044 https://doi.org/10.1038/s42003-021-01673-6 https://biblio.ugent.be/publication/8699044/file/8699051 eng eng https://biblio.ugent.be/publication/8699044 http://hdl.handle.net/1854/LU-8699044 http://dx.doi.org/10.1038/s42003-021-01673-6 https://biblio.ugent.be/publication/8699044/file/8699051 Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess COMMUNICATIONS BIOLOGY ISSN: 2399-3642 Biology and Life Sciences journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftunivgent https://doi.org/10.1038/s42003-021-01673-6 2023-04-19T22:07:16Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ghent University Academic Bibliography Antarctic The Antarctic Antarctic Peninsula Communications Biology 4 1 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences |
spellingShingle |
Biology and Life Sciences 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 |
topic_facet |
Biology and Life Sciences |
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 |
Article in Journal/Newspaper |
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 |
publishDate |
2021 |
url |
https://biblio.ugent.be/publication/8699044 http://hdl.handle.net/1854/LU-8699044 https://doi.org/10.1038/s42003-021-01673-6 https://biblio.ugent.be/publication/8699044/file/8699051 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
COMMUNICATIONS BIOLOGY ISSN: 2399-3642 |
op_relation |
https://biblio.ugent.be/publication/8699044 http://hdl.handle.net/1854/LU-8699044 http://dx.doi.org/10.1038/s42003-021-01673-6 https://biblio.ugent.be/publication/8699044/file/8699051 |
op_rights |
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s42003-021-01673-6 |
container_title |
Communications Biology |
container_volume |
4 |
container_issue |
1 |
_version_ |
1768379683226779648 |