Organic matter from Artic sea ice loss alters bacterial community structure and function
Continuing losses of multi-year sea ice (MYI) across the Arctic are resulting in first-year ice (FYI) dominating the Arctic ice pack. Melting FYI provides a strong seasonal pulse of dissolved organic matter (DOM) into surface waters; however, the biological impact of this DOM input is unknown. Here...
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ftunivessex:oai:repository.essex.ac.uk:23635 2023-05-15T14:47:53+02:00 Organic matter from Artic sea ice loss alters bacterial community structure and function Underwood, Graham Michel, Christine Meisterhans, Guillame Niemi, Andrea Belzile, Claude Witt, Matthias Dumbrell, Alex J Koch, Boris P 2019-01-21 text http://repository.essex.ac.uk/23635/ https://doi.org/10.1038/s41558-018-0391-7 http://repository.essex.ac.uk/23635/1/Underwood%20et%20al%20MS%20version%20accepted%20for%20publication%20Nat%20Clim%20Change.pdf http://repository.essex.ac.uk/23635/9/Supplementary%20Information%20Underwood%20et%20al%20NCC%20FINAL%20accepted%20for%20publication.pdf en eng Nature Research http://repository.essex.ac.uk/23635/1/Underwood%20et%20al%20MS%20version%20accepted%20for%20publication%20Nat%20Clim%20Change.pdf http://repository.essex.ac.uk/23635/9/Supplementary%20Information%20Underwood%20et%20al%20NCC%20FINAL%20accepted%20for%20publication.pdf Underwood, Graham and Michel, Christine and Meisterhans, Guillame and Niemi, Andrea and Belzile, Claude and Witt, Matthias and Dumbrell, Alex J and Koch, Boris P (2019) 'Organic matter from Artic sea ice loss alters bacterial community structure and function.' Nature Climate Change, 9 (2). pp. 170-176. ISSN 1758-678X GC Oceanography GE Environmental Sciences Article PeerReviewed 2019 ftunivessex https://doi.org/10.1038/s41558-018-0391-7 2022-08-18T22:40:54Z Continuing losses of multi-year sea ice (MYI) across the Arctic are resulting in first-year ice (FYI) dominating the Arctic ice pack. Melting FYI provides a strong seasonal pulse of dissolved organic matter (DOM) into surface waters; however, the biological impact of this DOM input is unknown. Here we show that DOM additions cause significant and contrasting changes in under-ice bacterioplankton abundance, production and species composition. Utilization of DOM was influenced by molecular size, with 10-100 kDa and >100 kDa DOM fractions promoting rapid growth of particular taxa, while uptake of sulfur and nitrogen-rich low molecular weight organic compounds shifted bacterial community composition. These results demonstrate the ecological impacts of DOM released from melting FYI, with wideranging consequences for the cycling of organic matter across regions of the Arctic Ocean transitioning from multi-year to seasonal sea ice as the climate continues to warm. Article in Journal/Newspaper Arctic Arctic Ocean ice pack Sea ice University of Essex Research Repository Arctic Arctic Ocean Nature Climate Change 9 2 170 176 |
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Open Polar |
collection |
University of Essex Research Repository |
op_collection_id |
ftunivessex |
language |
English |
topic |
GC Oceanography GE Environmental Sciences |
spellingShingle |
GC Oceanography GE Environmental Sciences Underwood, Graham Michel, Christine Meisterhans, Guillame Niemi, Andrea Belzile, Claude Witt, Matthias Dumbrell, Alex J Koch, Boris P Organic matter from Artic sea ice loss alters bacterial community structure and function |
topic_facet |
GC Oceanography GE Environmental Sciences |
description |
Continuing losses of multi-year sea ice (MYI) across the Arctic are resulting in first-year ice (FYI) dominating the Arctic ice pack. Melting FYI provides a strong seasonal pulse of dissolved organic matter (DOM) into surface waters; however, the biological impact of this DOM input is unknown. Here we show that DOM additions cause significant and contrasting changes in under-ice bacterioplankton abundance, production and species composition. Utilization of DOM was influenced by molecular size, with 10-100 kDa and >100 kDa DOM fractions promoting rapid growth of particular taxa, while uptake of sulfur and nitrogen-rich low molecular weight organic compounds shifted bacterial community composition. These results demonstrate the ecological impacts of DOM released from melting FYI, with wideranging consequences for the cycling of organic matter across regions of the Arctic Ocean transitioning from multi-year to seasonal sea ice as the climate continues to warm. |
format |
Article in Journal/Newspaper |
author |
Underwood, Graham Michel, Christine Meisterhans, Guillame Niemi, Andrea Belzile, Claude Witt, Matthias Dumbrell, Alex J Koch, Boris P |
author_facet |
Underwood, Graham Michel, Christine Meisterhans, Guillame Niemi, Andrea Belzile, Claude Witt, Matthias Dumbrell, Alex J Koch, Boris P |
author_sort |
Underwood, Graham |
title |
Organic matter from Artic sea ice loss alters bacterial community structure and function |
title_short |
Organic matter from Artic sea ice loss alters bacterial community structure and function |
title_full |
Organic matter from Artic sea ice loss alters bacterial community structure and function |
title_fullStr |
Organic matter from Artic sea ice loss alters bacterial community structure and function |
title_full_unstemmed |
Organic matter from Artic sea ice loss alters bacterial community structure and function |
title_sort |
organic matter from artic sea ice loss alters bacterial community structure and function |
publisher |
Nature Research |
publishDate |
2019 |
url |
http://repository.essex.ac.uk/23635/ https://doi.org/10.1038/s41558-018-0391-7 http://repository.essex.ac.uk/23635/1/Underwood%20et%20al%20MS%20version%20accepted%20for%20publication%20Nat%20Clim%20Change.pdf http://repository.essex.ac.uk/23635/9/Supplementary%20Information%20Underwood%20et%20al%20NCC%20FINAL%20accepted%20for%20publication.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean ice pack Sea ice |
genre_facet |
Arctic Arctic Ocean ice pack Sea ice |
op_relation |
http://repository.essex.ac.uk/23635/1/Underwood%20et%20al%20MS%20version%20accepted%20for%20publication%20Nat%20Clim%20Change.pdf http://repository.essex.ac.uk/23635/9/Supplementary%20Information%20Underwood%20et%20al%20NCC%20FINAL%20accepted%20for%20publication.pdf Underwood, Graham and Michel, Christine and Meisterhans, Guillame and Niemi, Andrea and Belzile, Claude and Witt, Matthias and Dumbrell, Alex J and Koch, Boris P (2019) 'Organic matter from Artic sea ice loss alters bacterial community structure and function.' Nature Climate Change, 9 (2). pp. 170-176. ISSN 1758-678X |
op_doi |
https://doi.org/10.1038/s41558-018-0391-7 |
container_title |
Nature Climate Change |
container_volume |
9 |
container_issue |
2 |
container_start_page |
170 |
op_container_end_page |
176 |
_version_ |
1766318986699472896 |