Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry
Summary 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 M idtre L ovénbreen ( S valbard) over 36 days. A stream cell flux of 1.08 × 10 7 cell...
Published in: | Environmental Microbiology |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2012
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1462-2920.2012.02876.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1462-2920.2012.02876.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1462-2920.2012.02876.x/fullpdf |
id |
crwiley:10.1111/j.1462-2920.2012.02876.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1462-2920.2012.02876.x 2024-06-23T07:45:09+00:00 Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry Irvine‐Fynn, T. D. L. Edwards, A. Newton, S. Langford, H. Rassner, S. M. Telling, J. Anesio, A. M. Hodson, A. J. 2012 http://dx.doi.org/10.1111/j.1462-2920.2012.02876.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1462-2920.2012.02876.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1462-2920.2012.02876.x/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Microbiology volume 14, issue 11, page 2998-3012 ISSN 1462-2912 1462-2920 journal-article 2012 crwiley https://doi.org/10.1111/j.1462-2920.2012.02876.x 2024-06-13T04:23:24Z Summary 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 M idtre L ovénbreen ( S valbard) over 36 days. A stream cell flux of 1.08 × 10 7 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 × 10 14 cells equates to 15.1–72.7 g C , and a large proportion of these cells were small (< 0.5 μm 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 × 10 7 cells m −2 h −1 . Analysis of surface ice cores revealed cell concentrations comparable to previous studies (6 × 10 4 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 Wiley Online Library Arctic Environmental Microbiology 14 11 2998 3012 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Summary 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 M idtre L ovénbreen ( S valbard) over 36 days. A stream cell flux of 1.08 × 10 7 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 × 10 14 cells equates to 15.1–72.7 g C , and a large proportion of these cells were small (< 0.5 μm 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 × 10 7 cells m −2 h −1 . Analysis of surface ice cores revealed cell concentrations comparable to previous studies (6 × 10 4 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. D. L. Edwards, A. Newton, S. Langford, H. Rassner, S. M. Telling, J. Anesio, A. M. Hodson, A. J. |
spellingShingle |
Irvine‐Fynn, T. D. L. Edwards, A. Newton, S. Langford, H. Rassner, S. M. Telling, J. Anesio, A. M. Hodson, A. J. Microbial cell budgets of an Arctic glacier surface quantified using flow cytometry |
author_facet |
Irvine‐Fynn, T. D. L. Edwards, A. Newton, S. Langford, H. Rassner, S. M. Telling, J. Anesio, A. M. Hodson, A. J. |
author_sort |
Irvine‐Fynn, T. D. L. |
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 |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1462-2920.2012.02876.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1462-2920.2012.02876.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1462-2920.2012.02876.x/fullpdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic |
genre_facet |
albedo Arctic |
op_source |
Environmental Microbiology volume 14, issue 11, page 2998-3012 ISSN 1462-2912 1462-2920 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1462-2920.2012.02876.x |
container_title |
Environmental Microbiology |
container_volume |
14 |
container_issue |
11 |
container_start_page |
2998 |
op_container_end_page |
3012 |
_version_ |
1802651661034848256 |