ub.xmlui.mirage2.page-structure.muninLogoub.xmlui.mirage2.page-structure.openResearchArchiveLogo
    • EnglishEnglish
    • norsknorsk
  • Velg spraakEnglish 
    • EnglishEnglish
    • norsknorsk
  • Administration/UB
View Item 
  •   Home
  • Fakultet for naturvitenskap og teknologi
  • Institutt for geovitenskap
  • Artikler, rapporter og annet (geovitenskap)
  • View Item
  •   Home
  • Fakultet for naturvitenskap og teknologi
  • Institutt for geovitenskap
  • Artikler, rapporter og annet (geovitenskap)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Storage and export of microbial biomass across the western Greenland Ice Sheet

Permanent link
https://hdl.handle.net/10037/21602
DOI
https://doi.org/10.1038/s41467-021-24040-9
Thumbnail
View/Open
article.pdf (1.655Mb)
Published version (PDF)
Date
2021-06-25
Type
Journal article
Tidsskriftartikkel
Peer reviewed

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
Abstract
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
Publisher
Springer
Citation
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)
Metadata
Show full item record
Collections
  • Artikler, rapporter og annet (geovitenskap) [806]
Copyright 2021 The Author(s)

Browse

Browse all of MuninCommunities & CollectionsAuthor listTitlesBy Issue DateBrowse this CollectionAuthor listTitlesBy Issue Date
Login

Statistics

View Usage Statistics
UiT

Munin is powered by DSpace

UiT The Arctic University of Norway
The University Library
uit.no/ub - munin@ub.uit.no

Accessibility statement (Norwegian only)