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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Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2016
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Online Access: | https://orbit.dtu.dk/en/publications/e4ad7538-da11-40ea-b3d0-c28923958beb https://doi.org/10.3389/fmicb.2016.01474 https://backend.orbit.dtu.dk/ws/files/126992749/Upstream_Freshwater_and_Terrestrial_Sources_Are_Differentially_Reflected_in_the_Bacterial_Community_Structure_along_a_Small_Arctic_River_and_Its_Estuary.pdf |
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ftdtupubl:oai:pure.atira.dk:publications/e4ad7538-da11-40ea-b3d0-c28923958beb 2024-09-15T17:51:12+00:00 Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary Hauptmann, Aviaja Zenia Edna Lyberth Markussen, Thor N Stibal, Marek Olsen, Nikoline S. Elberling, Bo Bælum, Jacob Sicheritz-Pontén, Thomas Jacobsen, Carsten S. 2016 application/pdf https://orbit.dtu.dk/en/publications/e4ad7538-da11-40ea-b3d0-c28923958beb https://doi.org/10.3389/fmicb.2016.01474 https://backend.orbit.dtu.dk/ws/files/126992749/Upstream_Freshwater_and_Terrestrial_Sources_Are_Differentially_Reflected_in_the_Bacterial_Community_Structure_along_a_Small_Arctic_River_and_Its_Estuary.pdf eng eng https://orbit.dtu.dk/en/publications/e4ad7538-da11-40ea-b3d0-c28923958beb info:eu-repo/semantics/openAccess Hauptmann , A Z E 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 , 1474 . https://doi.org/10.3389/fmicb.2016.01474 Greenland Arctic Bacterial community Biodiversity Freshwater network Polar environments /dk/atira/pure/sustainabledevelopmentgoals/life_on_land name=SDG 15 - Life on Land article 2016 ftdtupubl https://doi.org/10.3389/fmicb.2016.01474 2024-08-05T23:48:29Z 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 Disko Bay glacier Greenland Technical University of Denmark: DTU Orbit Frontiers in Microbiology 7 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Greenland Arctic Bacterial community Biodiversity Freshwater network Polar environments /dk/atira/pure/sustainabledevelopmentgoals/life_on_land name=SDG 15 - Life on Land |
spellingShingle |
Greenland Arctic Bacterial community Biodiversity Freshwater network Polar environments /dk/atira/pure/sustainabledevelopmentgoals/life_on_land name=SDG 15 - Life on Land Hauptmann, Aviaja Zenia Edna Lyberth Markussen, Thor N Stibal, Marek Olsen, Nikoline S. Elberling, Bo Bælum, Jacob Sicheritz-Pontén, Thomas Jacobsen, Carsten S. Upstream Freshwater and Terrestrial Sources Are Differentially Reflected in the Bacterial Community Structure along a Small Arctic River and Its Estuary |
topic_facet |
Greenland Arctic Bacterial community Biodiversity Freshwater network Polar environments /dk/atira/pure/sustainabledevelopmentgoals/life_on_land name=SDG 15 - Life on Land |
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 Zenia Edna Lyberth Markussen, Thor N Stibal, Marek Olsen, Nikoline S. Elberling, Bo Bælum, Jacob Sicheritz-Pontén, Thomas Jacobsen, Carsten S. |
author_facet |
Hauptmann, Aviaja Zenia Edna Lyberth Markussen, Thor N Stibal, Marek Olsen, Nikoline S. Elberling, Bo Bælum, Jacob Sicheritz-Pontén, Thomas Jacobsen, Carsten S. |
author_sort |
Hauptmann, Aviaja Zenia Edna Lyberth |
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://orbit.dtu.dk/en/publications/e4ad7538-da11-40ea-b3d0-c28923958beb https://doi.org/10.3389/fmicb.2016.01474 https://backend.orbit.dtu.dk/ws/files/126992749/Upstream_Freshwater_and_Terrestrial_Sources_Are_Differentially_Reflected_in_the_Bacterial_Community_Structure_along_a_Small_Arctic_River_and_Its_Estuary.pdf |
genre |
Arctic Disko Bay glacier Greenland |
genre_facet |
Arctic Disko Bay glacier Greenland |
op_source |
Hauptmann , A Z E 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 , 1474 . https://doi.org/10.3389/fmicb.2016.01474 |
op_relation |
https://orbit.dtu.dk/en/publications/e4ad7538-da11-40ea-b3d0-c28923958beb |
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 |
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1810293043901759488 |