Distinct Communities of Free-Living and Copepod-Associated Microorganisms along a Salinity Gradient in Godthabsfjord, West Greenland
Microorganisms such as Bacteria and Archaea play important roles in the Arctic food web and biogeochemical cycles. Nevertheless, knowledge of microbial community composition in Greenland waters is scarce, and information on microorganisms associated with Arctic zooplankton species is virtually non-e...
Published in: | Arctic, Antarctic, and Alpine Research |
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Language: | English |
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2013
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Online Access: | https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/34606 https://doi.org/10.1657/1938-4246.45.4.471 |
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ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:34606 2023-05-15T14:46:38+02:00 Distinct Communities of Free-Living and Copepod-Associated Microorganisms along a Salinity Gradient in Godthabsfjord, West Greenland Dziallas, Claudia Grossart, Hans-Peter F. Tang, Kam W. Nielsen, Torkel Gissel 2013 https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/34606 https://doi.org/10.1657/1938-4246.45.4.471 eng eng https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/34606 https://doi.org/10.1657/1938-4246.45.4.471 info:eu-repo/semantics/closedAccess article doc-type:article 2013 ftubpotsdam https://doi.org/10.1657/1938-4246.45.4.471 2022-07-28T20:45:30Z Microorganisms such as Bacteria and Archaea play important roles in the Arctic food web and biogeochemical cycles. Nevertheless, knowledge of microbial community composition in Greenland waters is scarce, and information on microorganisms associated with Arctic zooplankton species is virtually non-existent. We compared free-living microbial communities with those associated with two key copepod species (Calanus finmarchicus and Metridia longa) along a salinity gradient from the deep waters beyond Fyllas Banke to the inner part of Godthabsfjord, West Greenland, in summer 2008. Using genetic fingerprinting we found that free-living Bacteria (in particular Alphaproteobacteria) and Archaea varied with environmental factors and formed different communities along the fjord. Microbial communities associated with the two copepod species were clearly different from those in the ambient water. Surprisingly, Archaea could not be detected on the copepods. Our results show that zooplankton form "microbial islands" in the Arctic pelagic realm with a distinctive community composition and presumably functionality different from the free-living Bacteria. Changes in intensity and timing of meltwater runoff due to global warming are expected to affect these microbial assemblages differently, with potentially significant ramifications for Arctic food webs and biogeochemistry. Article in Journal/Newspaper Arctic Calanus finmarchicus Global warming Greenland Zooplankton Copepods University of Potsdam: publish.UP Arctic Greenland Arctic, Antarctic, and Alpine Research 45 4 471 480 |
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Open Polar |
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University of Potsdam: publish.UP |
op_collection_id |
ftubpotsdam |
language |
English |
description |
Microorganisms such as Bacteria and Archaea play important roles in the Arctic food web and biogeochemical cycles. Nevertheless, knowledge of microbial community composition in Greenland waters is scarce, and information on microorganisms associated with Arctic zooplankton species is virtually non-existent. We compared free-living microbial communities with those associated with two key copepod species (Calanus finmarchicus and Metridia longa) along a salinity gradient from the deep waters beyond Fyllas Banke to the inner part of Godthabsfjord, West Greenland, in summer 2008. Using genetic fingerprinting we found that free-living Bacteria (in particular Alphaproteobacteria) and Archaea varied with environmental factors and formed different communities along the fjord. Microbial communities associated with the two copepod species were clearly different from those in the ambient water. Surprisingly, Archaea could not be detected on the copepods. Our results show that zooplankton form "microbial islands" in the Arctic pelagic realm with a distinctive community composition and presumably functionality different from the free-living Bacteria. Changes in intensity and timing of meltwater runoff due to global warming are expected to affect these microbial assemblages differently, with potentially significant ramifications for Arctic food webs and biogeochemistry. |
format |
Article in Journal/Newspaper |
author |
Dziallas, Claudia Grossart, Hans-Peter F. Tang, Kam W. Nielsen, Torkel Gissel |
spellingShingle |
Dziallas, Claudia Grossart, Hans-Peter F. Tang, Kam W. Nielsen, Torkel Gissel Distinct Communities of Free-Living and Copepod-Associated Microorganisms along a Salinity Gradient in Godthabsfjord, West Greenland |
author_facet |
Dziallas, Claudia Grossart, Hans-Peter F. Tang, Kam W. Nielsen, Torkel Gissel |
author_sort |
Dziallas, Claudia |
title |
Distinct Communities of Free-Living and Copepod-Associated Microorganisms along a Salinity Gradient in Godthabsfjord, West Greenland |
title_short |
Distinct Communities of Free-Living and Copepod-Associated Microorganisms along a Salinity Gradient in Godthabsfjord, West Greenland |
title_full |
Distinct Communities of Free-Living and Copepod-Associated Microorganisms along a Salinity Gradient in Godthabsfjord, West Greenland |
title_fullStr |
Distinct Communities of Free-Living and Copepod-Associated Microorganisms along a Salinity Gradient in Godthabsfjord, West Greenland |
title_full_unstemmed |
Distinct Communities of Free-Living and Copepod-Associated Microorganisms along a Salinity Gradient in Godthabsfjord, West Greenland |
title_sort |
distinct communities of free-living and copepod-associated microorganisms along a salinity gradient in godthabsfjord, west greenland |
publishDate |
2013 |
url |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/34606 https://doi.org/10.1657/1938-4246.45.4.471 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Calanus finmarchicus Global warming Greenland Zooplankton Copepods |
genre_facet |
Arctic Calanus finmarchicus Global warming Greenland Zooplankton Copepods |
op_relation |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/34606 https://doi.org/10.1657/1938-4246.45.4.471 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1657/1938-4246.45.4.471 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
45 |
container_issue |
4 |
container_start_page |
471 |
op_container_end_page |
480 |
_version_ |
1766317838176354304 |