Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry
Uncertainty surrounds estimates of microbial cell and organic detritus fluxes from glacier surfaces. Here, we present the first enumeration of biological particles draining from a supraglacial catchment, on Midtre Lovénbreen (Svalbard) over 36 days. A stream cell flux of 1.08 E7 cells m-2 h-1 was fo...
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ftubristolcris:oai:research-information.bris.ac.uk:publications/29bfbc4a-8ed9-4bda-a5e0-cc81c8f6482c 2024-05-12T07:52:24+00:00 Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry Irvine-Fynn, T Edwards, A Newton, S Langford, H Rassner, SM Telling, Jon P Anesio, Alexandre M B Hodson, A 2012 https://hdl.handle.net/1983/29bfbc4a-8ed9-4bda-a5e0-cc81c8f6482c https://research-information.bris.ac.uk/en/publications/29bfbc4a-8ed9-4bda-a5e0-cc81c8f6482c eng eng https://research-information.bris.ac.uk/en/publications/29bfbc4a-8ed9-4bda-a5e0-cc81c8f6482c info:eu-repo/semantics/restrictedAccess Irvine-Fynn , T , Edwards , A , Newton , S , Langford , H , Rassner , SM , Telling , J P , Anesio , A M B & Hodson , A 2012 , ' Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry ' , Environmental Microbiology , vol. 14 , no. 11 , 14 , pp. 2998-3012 . article 2012 ftubristolcris 2024-04-17T14:15:14Z Uncertainty surrounds estimates of microbial cell and organic detritus fluxes from glacier surfaces. Here, we present the first enumeration of biological particles draining from a supraglacial catchment, on Midtre Lovénbreen (Svalbard) over 36 days. A stream cell flux of 1.08 E7 cells m-2 h-1 was found, with strong inverse, non-linear associations between water discharge and biological particle concentrations. Over the study period, a significant decrease in cell-like particles exhibiting 530 nm autofluorescence was noted. The observed total fluvial export of ~ 7.5 E14 cells equates to 15.1–72.7 g C, and a large proportion of these cells were small (< 0.5 mm in diameter). Differences between the observed fluvial export and inputs from ice-melt and aeolian deposition were marked: results indicate an apparent storage rate of 8.83 E7 cells m-2 h-1. Analysis of surface ice cores revealed cell concentrations comparable to previous studies (6 E4 cells ml-1) but, critically, showed no variation with depth in the uppermost 1 m. The physical retention and growth of particulates at glacier surfaces has two implications: to contribute to ice mass thinning through feedbacks altering surface albedo, and to potentially seed recently deglaciated terrain with cells, genes and labile organic matter. This highlights the merit of further study into glacier surface hydraulics and biological processes. Article in Journal/Newspaper albedo Arctic Arctic glacier Svalbard University of Bristol: Bristol Research Arctic Svalbard |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
description |
Uncertainty surrounds estimates of microbial cell and organic detritus fluxes from glacier surfaces. Here, we present the first enumeration of biological particles draining from a supraglacial catchment, on Midtre Lovénbreen (Svalbard) over 36 days. A stream cell flux of 1.08 E7 cells m-2 h-1 was found, with strong inverse, non-linear associations between water discharge and biological particle concentrations. Over the study period, a significant decrease in cell-like particles exhibiting 530 nm autofluorescence was noted. The observed total fluvial export of ~ 7.5 E14 cells equates to 15.1–72.7 g C, and a large proportion of these cells were small (< 0.5 mm in diameter). Differences between the observed fluvial export and inputs from ice-melt and aeolian deposition were marked: results indicate an apparent storage rate of 8.83 E7 cells m-2 h-1. Analysis of surface ice cores revealed cell concentrations comparable to previous studies (6 E4 cells ml-1) but, critically, showed no variation with depth in the uppermost 1 m. The physical retention and growth of particulates at glacier surfaces has two implications: to contribute to ice mass thinning through feedbacks altering surface albedo, and to potentially seed recently deglaciated terrain with cells, genes and labile organic matter. This highlights the merit of further study into glacier surface hydraulics and biological processes. |
format |
Article in Journal/Newspaper |
author |
Irvine-Fynn, T Edwards, A Newton, S Langford, H Rassner, SM Telling, Jon P Anesio, Alexandre M B Hodson, A |
spellingShingle |
Irvine-Fynn, T Edwards, A Newton, S Langford, H Rassner, SM Telling, Jon P Anesio, Alexandre M B Hodson, A Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry |
author_facet |
Irvine-Fynn, T Edwards, A Newton, S Langford, H Rassner, SM Telling, Jon P Anesio, Alexandre M B Hodson, A |
author_sort |
Irvine-Fynn, T |
title |
Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry |
title_short |
Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry |
title_full |
Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry |
title_fullStr |
Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry |
title_full_unstemmed |
Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry |
title_sort |
microbial cell budgets of an arctic glacier surface quantified using flow cytometry |
publishDate |
2012 |
url |
https://hdl.handle.net/1983/29bfbc4a-8ed9-4bda-a5e0-cc81c8f6482c https://research-information.bris.ac.uk/en/publications/29bfbc4a-8ed9-4bda-a5e0-cc81c8f6482c |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
albedo Arctic Arctic glacier Svalbard |
genre_facet |
albedo Arctic Arctic glacier Svalbard |
op_source |
Irvine-Fynn , T , Edwards , A , Newton , S , Langford , H , Rassner , SM , Telling , J P , Anesio , A M B & Hodson , A 2012 , ' Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry ' , Environmental Microbiology , vol. 14 , no. 11 , 14 , pp. 2998-3012 . |
op_relation |
https://research-information.bris.ac.uk/en/publications/29bfbc4a-8ed9-4bda-a5e0-cc81c8f6482c |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1798835098309623808 |