Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary
Glacier melting and altered precipitation patterns influence Arctic freshwater and coastal ecosystems. Arctic rivers are central to Arctic water ecosystems by linking glacier meltwaters and precipitation with the ocean through transport of particulate matter and microorganisms. However, the impact o...
Published in: | Frontiers in Microbiology |
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Language: | English |
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2016
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Online Access: | https://pure.au.dk/portal/da/publications/upstream-freshwater-and-terrestrial-sources-are-differentially-reflected-in-the-bacterial-community-structure-along-a-small-arctic-river-and-its-estuary(6fbddf59-0208-44b4-979b-7ade1bd57954).html https://doi.org/10.3389/fmicb.2016.01474 http://www.scopus.com/inward/record.url?scp=84993995715&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/6fbddf59-0208-44b4-979b-7ade1bd57954 2023-05-15T14:26:59+02:00 Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary Hauptmann, Aviaja L. Markussen, Thor N. Stibal, Marek Olsen, Nikoline S. Elberling, Bo Bælum, Jakob Sicheritz-Pontén, Thomas Jacobsen, Carsten Suhr 2016-09-21 https://pure.au.dk/portal/da/publications/upstream-freshwater-and-terrestrial-sources-are-differentially-reflected-in-the-bacterial-community-structure-along-a-small-arctic-river-and-its-estuary(6fbddf59-0208-44b4-979b-7ade1bd57954).html https://doi.org/10.3389/fmicb.2016.01474 http://www.scopus.com/inward/record.url?scp=84993995715&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Hauptmann , A L , Markussen , T N , Stibal , M , Olsen , N S , Elberling , B , Bælum , J , Sicheritz-Pontén , T & Jacobsen , C S 2016 , ' Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary ' , Frontiers in Microbiology , vol. 7 , no. SEP , 1474 , pp. 1-16 . https://doi.org/10.3389/fmicb.2016.01474 , https://doi.org/10.3389/fmicb.2016.01474 Arctic Bacterial community Biodiversity Freshwater network Greenland Polar environments article 2016 ftuniaarhuspubl https://doi.org/10.3389/fmicb.2016.01474 2023-02-01T23:55:13Z Glacier melting and altered precipitation patterns influence Arctic freshwater and coastal ecosystems. Arctic rivers are central to Arctic water ecosystems by linking glacier meltwaters and precipitation with the ocean through transport of particulate matter and microorganisms. However, the impact of different water sources on the microbial communities in Arctic rivers and estuaries remains unknown. In this study we used 16S rRNA gene amplicon sequencing to assess a small river and its estuary on the Disko Island, West Greenland (69°N). Samples were taken in August when there is maximum precipitation and temperatures are high in the Disko Bay area. We describe the bacterial community through a river into the estuary, including communities originating in a glacier and a proglacial lake. Our results show that water from the glacier and lake transports distinct communities into the river in terms of diversity and community composition. Bacteria of terrestrial origin were among the dominating OTUs in the main river, while the glacier and lake supplied the river with water containing fewer terrestrial organisms. Also, more psychrophilic taxa were found in the community supplied by the lake. At the river mouth, the presence of dominant bacterial taxa from the lake and glacier was unnoticeable, but these taxa increased their abundances again further into the estuary. On average 23% of the estuary community consisted of indicator OTUs from different sites along the river. Environmental variables showed only weak correlations with community composition, suggesting that hydrology largely influences the observed patterns. Article in Journal/Newspaper Arctic Arctic Disko Bay glacier Greenland Aarhus University: Research Arctic Greenland Frontiers in Microbiology 7 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Arctic Bacterial community Biodiversity Freshwater network Greenland Polar environments |
spellingShingle |
Arctic Bacterial community Biodiversity Freshwater network Greenland Polar environments Hauptmann, Aviaja L. Markussen, Thor N. Stibal, Marek Olsen, Nikoline S. Elberling, Bo Bælum, Jakob Sicheritz-Pontén, Thomas Jacobsen, Carsten Suhr Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary |
topic_facet |
Arctic Bacterial community Biodiversity Freshwater network Greenland Polar environments |
description |
Glacier melting and altered precipitation patterns influence Arctic freshwater and coastal ecosystems. Arctic rivers are central to Arctic water ecosystems by linking glacier meltwaters and precipitation with the ocean through transport of particulate matter and microorganisms. However, the impact of different water sources on the microbial communities in Arctic rivers and estuaries remains unknown. In this study we used 16S rRNA gene amplicon sequencing to assess a small river and its estuary on the Disko Island, West Greenland (69°N). Samples were taken in August when there is maximum precipitation and temperatures are high in the Disko Bay area. We describe the bacterial community through a river into the estuary, including communities originating in a glacier and a proglacial lake. Our results show that water from the glacier and lake transports distinct communities into the river in terms of diversity and community composition. Bacteria of terrestrial origin were among the dominating OTUs in the main river, while the glacier and lake supplied the river with water containing fewer terrestrial organisms. Also, more psychrophilic taxa were found in the community supplied by the lake. At the river mouth, the presence of dominant bacterial taxa from the lake and glacier was unnoticeable, but these taxa increased their abundances again further into the estuary. On average 23% of the estuary community consisted of indicator OTUs from different sites along the river. Environmental variables showed only weak correlations with community composition, suggesting that hydrology largely influences the observed patterns. |
format |
Article in Journal/Newspaper |
author |
Hauptmann, Aviaja L. Markussen, Thor N. Stibal, Marek Olsen, Nikoline S. Elberling, Bo Bælum, Jakob Sicheritz-Pontén, Thomas Jacobsen, Carsten Suhr |
author_facet |
Hauptmann, Aviaja L. Markussen, Thor N. Stibal, Marek Olsen, Nikoline S. Elberling, Bo Bælum, Jakob Sicheritz-Pontén, Thomas Jacobsen, Carsten Suhr |
author_sort |
Hauptmann, Aviaja L. |
title |
Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary |
title_short |
Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary |
title_full |
Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary |
title_fullStr |
Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary |
title_full_unstemmed |
Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary |
title_sort |
upstream freshwater and terrestrial sources are differentially reflected in the bacterial community structure along a small arctic river and its estuary |
publishDate |
2016 |
url |
https://pure.au.dk/portal/da/publications/upstream-freshwater-and-terrestrial-sources-are-differentially-reflected-in-the-bacterial-community-structure-along-a-small-arctic-river-and-its-estuary(6fbddf59-0208-44b4-979b-7ade1bd57954).html https://doi.org/10.3389/fmicb.2016.01474 http://www.scopus.com/inward/record.url?scp=84993995715&partnerID=8YFLogxK |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Disko Bay glacier Greenland |
genre_facet |
Arctic Arctic Disko Bay glacier Greenland |
op_source |
Hauptmann , A L , Markussen , T N , Stibal , M , Olsen , N S , Elberling , B , Bælum , J , Sicheritz-Pontén , T & Jacobsen , C S 2016 , ' Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary ' , Frontiers in Microbiology , vol. 7 , no. SEP , 1474 , pp. 1-16 . https://doi.org/10.3389/fmicb.2016.01474 , https://doi.org/10.3389/fmicb.2016.01474 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fmicb.2016.01474 |
container_title |
Frontiers in Microbiology |
container_volume |
7 |
_version_ |
1766300523637506048 |