Storage and export of microbial biomass across the western Greenland Ice Sheet
The Greenland Ice Sheet harbours a wealth of microbial life, yet the total biomass stored or exported from its surface to downstream environments is unconstrained. Here, we quantify microbial abundance and cellular biomass flux within the near-surface weathering crust photic zone of the western sect...
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Online Access: | https://hdl.handle.net/10037/21602 https://doi.org/10.1038/s41467-021-24040-9 |
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ftunivtroemsoe:oai:munin.uit.no:10037/21602 2023-05-15T14:27:39+02:00 Storage and export of microbial biomass across the western Greenland Ice Sheet Irvine-Fynn, Tristram D.L. Edwards, A. Stevens, I.T. Mitchell, A.C. Bunting, P. Box, J.E. Cameron, K.A. Cook, J.M. Naegeli, K. Rassner, S.M.E. Ryan, J.C. Stibal, M. Williamson, C.J. Hubbard, Alun Lloyd 2021-06-25 https://hdl.handle.net/10037/21602 https://doi.org/10.1038/s41467-021-24040-9 eng eng Springer Nature Communications Norges forskningsråd: 223259 info:eu-repo/grantAgreement/EC/SIRCIW/663830/?/Strengthening International Research Capacity in Wales// info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ Irvine-Fynn TD, Edwards A, Stevens, Mitchell, Bunting, Box J, Cameron, Cook J, Naegeli, Rassner, Ryan J, Stibal, Williamson, Hubbard AL. Storage and export of microbial biomass across the western Greenland Ice Sheet. Nature Communications. 2021;12(3960) FRIDAID 1918882 doi:10.1038/s41467-021-24040-9 2041-1723 https://hdl.handle.net/10037/21602 openAccess Copyright 2021 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2021 ftunivtroemsoe https://doi.org/10.1038/s41467-021-24040-9 2021-06-30T22:52:36Z The Greenland Ice Sheet harbours a wealth of microbial life, yet the total biomass stored or exported from its surface to downstream environments is unconstrained. Here, we quantify microbial abundance and cellular biomass flux within the near-surface weathering crust photic zone of the western sector of the ice sheet. Using groundwater techniques, we demonstrate that interstitial water flow is slow (~10−2 m d−1), while flow cytometry enumeration reveals this pathway delivers 5 × 108 cells m−2 d−1 to supraglacial streams, equivalent to a carbon flux up to 250 g km−2 d−1. We infer that cellular carbon accumulation in the weathering crust exceeds fluvial export, promoting biomass sequestration, enhanced carbon cycling, and biological albedo reduction. We estimate that up to 37 kg km−2 of cellular carbon is flushed from the weathering crust environment of the western Greenland Ice Sheet each summer, providing an appreciable flux to support heterotrophs and methanogenesis at the bed Article in Journal/Newspaper Arctic Greenland Ice Sheet University of Tromsø: Munin Open Research Archive Greenland Nature Communications 12 1 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Irvine-Fynn, Tristram D.L. Edwards, A. Stevens, I.T. Mitchell, A.C. Bunting, P. Box, J.E. Cameron, K.A. Cook, J.M. Naegeli, K. Rassner, S.M.E. Ryan, J.C. Stibal, M. Williamson, C.J. Hubbard, Alun Lloyd Storage and export of microbial biomass across the western Greenland Ice Sheet |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
The Greenland Ice Sheet harbours a wealth of microbial life, yet the total biomass stored or exported from its surface to downstream environments is unconstrained. Here, we quantify microbial abundance and cellular biomass flux within the near-surface weathering crust photic zone of the western sector of the ice sheet. Using groundwater techniques, we demonstrate that interstitial water flow is slow (~10−2 m d−1), while flow cytometry enumeration reveals this pathway delivers 5 × 108 cells m−2 d−1 to supraglacial streams, equivalent to a carbon flux up to 250 g km−2 d−1. We infer that cellular carbon accumulation in the weathering crust exceeds fluvial export, promoting biomass sequestration, enhanced carbon cycling, and biological albedo reduction. We estimate that up to 37 kg km−2 of cellular carbon is flushed from the weathering crust environment of the western Greenland Ice Sheet each summer, providing an appreciable flux to support heterotrophs and methanogenesis at the bed |
format |
Article in Journal/Newspaper |
author |
Irvine-Fynn, Tristram D.L. Edwards, A. Stevens, I.T. Mitchell, A.C. Bunting, P. Box, J.E. Cameron, K.A. Cook, J.M. Naegeli, K. Rassner, S.M.E. Ryan, J.C. Stibal, M. Williamson, C.J. Hubbard, Alun Lloyd |
author_facet |
Irvine-Fynn, Tristram D.L. Edwards, A. Stevens, I.T. Mitchell, A.C. Bunting, P. Box, J.E. Cameron, K.A. Cook, J.M. Naegeli, K. Rassner, S.M.E. Ryan, J.C. Stibal, M. Williamson, C.J. Hubbard, Alun Lloyd |
author_sort |
Irvine-Fynn, Tristram D.L. |
title |
Storage and export of microbial biomass across the western Greenland Ice Sheet |
title_short |
Storage and export of microbial biomass across the western Greenland Ice Sheet |
title_full |
Storage and export of microbial biomass across the western Greenland Ice Sheet |
title_fullStr |
Storage and export of microbial biomass across the western Greenland Ice Sheet |
title_full_unstemmed |
Storage and export of microbial biomass across the western Greenland Ice Sheet |
title_sort |
storage and export of microbial biomass across the western greenland ice sheet |
publisher |
Springer |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/21602 https://doi.org/10.1038/s41467-021-24040-9 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Arctic Greenland Ice Sheet |
genre_facet |
Arctic Greenland Ice Sheet |
op_relation |
Nature Communications Norges forskningsråd: 223259 info:eu-repo/grantAgreement/EC/SIRCIW/663830/?/Strengthening International Research Capacity in Wales// info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ Irvine-Fynn TD, Edwards A, Stevens, Mitchell, Bunting, Box J, Cameron, Cook J, Naegeli, Rassner, Ryan J, Stibal, Williamson, Hubbard AL. Storage and export of microbial biomass across the western Greenland Ice Sheet. Nature Communications. 2021;12(3960) FRIDAID 1918882 doi:10.1038/s41467-021-24040-9 2041-1723 https://hdl.handle.net/10037/21602 |
op_rights |
openAccess Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.1038/s41467-021-24040-9 |
container_title |
Nature Communications |
container_volume |
12 |
container_issue |
1 |
_version_ |
1766301484541018112 |