Geochemistry and microbial populations in sediments of the Northern Baffin Bay, Arctic
The Northern Baffin Bay between Greenland and Canada is a remote Arctic area restricted in primary production by seasonal ice cover, with presumably low sedimentation rates, carbon content and microbial activities in its sediments. Our aim was to study the so far unknown subseafloor geochemistry and...
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Online Access: | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=13877 https://doi.org/10.1080/01490451.2012.758195 |
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ftufz:oai:ufz.de:13877 2023-12-10T09:45:25+01:00 Geochemistry and microbial populations in sediments of the Northern Baffin Bay, Arctic Algora, Camelia Gründger, F. Adrian, Lorenz Damm, V. Richnow, Hans Hermann Krüger, M. 2013 application/pdf https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=13877 https://doi.org/10.1080/01490451.2012.758195 en eng Taylor & Francis Geomicrobiology Journal 30 (8);; 690 - 705 https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=13877 https://dx.doi.org/10.1080/01490451.2012.758195 info:eu-repo/semantics/closedAccess ISSN: 0149-0451 microbial activities microbial ecology quantitative PCR pore water analysis sediment cores subsurface microbiology info:eu-repo/semantics/article https://purl.org/dc/dcmitype/Text 2013 ftufz https://doi.org/10.1080/01490451.2012.758195 2023-11-12T23:32:26Z The Northern Baffin Bay between Greenland and Canada is a remote Arctic area restricted in primary production by seasonal ice cover, with presumably low sedimentation rates, carbon content and microbial activities in its sediments. Our aim was to study the so far unknown subseafloor geochemistry and microbial populations driving seafloor ecosystems. Shelf sediments had the highest organic carbon content, numbers of Bacteria and Archaea, and microcosms inoculated from Shelf sediments showed highest sulfate reduction and methane production rates. Sediments in the central deep area and on the southern slope contained less organic carbon and overall lower microbial numbers. Similar 16S rRNA gene copy numbers of Archaea and Bacteria were found for the majority of the sites investigated. Sulfate in pore water correlated with dsrA copy numbers of sulfate-reducing prokaryotes and differed between sites. No methane was found as free gas in the sediments, and mcrA copy numbers of methanogenic Archaea were low. Methanogenic and sulfate-reducing cultures were enriched on a variety of substrates including hydrocarbons. In summary, the Greenlandic shelf sediments contain vital microbial communities adapted to their specific environmental conditions. Article in Journal/Newspaper Arctic Baffin Bay Baffin Bay Baffin Greenland greenlandic UFZ - Publication Index (Helmholtz-Centre for Environmental Research) Arctic Baffin Bay Canada Greenland Geomicrobiology Journal 30 8 690 705 |
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Open Polar |
collection |
UFZ - Publication Index (Helmholtz-Centre for Environmental Research) |
op_collection_id |
ftufz |
language |
English |
topic |
microbial activities microbial ecology quantitative PCR pore water analysis sediment cores subsurface microbiology |
spellingShingle |
microbial activities microbial ecology quantitative PCR pore water analysis sediment cores subsurface microbiology Algora, Camelia Gründger, F. Adrian, Lorenz Damm, V. Richnow, Hans Hermann Krüger, M. Geochemistry and microbial populations in sediments of the Northern Baffin Bay, Arctic |
topic_facet |
microbial activities microbial ecology quantitative PCR pore water analysis sediment cores subsurface microbiology |
description |
The Northern Baffin Bay between Greenland and Canada is a remote Arctic area restricted in primary production by seasonal ice cover, with presumably low sedimentation rates, carbon content and microbial activities in its sediments. Our aim was to study the so far unknown subseafloor geochemistry and microbial populations driving seafloor ecosystems. Shelf sediments had the highest organic carbon content, numbers of Bacteria and Archaea, and microcosms inoculated from Shelf sediments showed highest sulfate reduction and methane production rates. Sediments in the central deep area and on the southern slope contained less organic carbon and overall lower microbial numbers. Similar 16S rRNA gene copy numbers of Archaea and Bacteria were found for the majority of the sites investigated. Sulfate in pore water correlated with dsrA copy numbers of sulfate-reducing prokaryotes and differed between sites. No methane was found as free gas in the sediments, and mcrA copy numbers of methanogenic Archaea were low. Methanogenic and sulfate-reducing cultures were enriched on a variety of substrates including hydrocarbons. In summary, the Greenlandic shelf sediments contain vital microbial communities adapted to their specific environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Algora, Camelia Gründger, F. Adrian, Lorenz Damm, V. Richnow, Hans Hermann Krüger, M. |
author_facet |
Algora, Camelia Gründger, F. Adrian, Lorenz Damm, V. Richnow, Hans Hermann Krüger, M. |
author_sort |
Algora, Camelia |
title |
Geochemistry and microbial populations in sediments of the Northern Baffin Bay, Arctic |
title_short |
Geochemistry and microbial populations in sediments of the Northern Baffin Bay, Arctic |
title_full |
Geochemistry and microbial populations in sediments of the Northern Baffin Bay, Arctic |
title_fullStr |
Geochemistry and microbial populations in sediments of the Northern Baffin Bay, Arctic |
title_full_unstemmed |
Geochemistry and microbial populations in sediments of the Northern Baffin Bay, Arctic |
title_sort |
geochemistry and microbial populations in sediments of the northern baffin bay, arctic |
publisher |
Taylor & Francis |
publishDate |
2013 |
url |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=13877 https://doi.org/10.1080/01490451.2012.758195 |
geographic |
Arctic Baffin Bay Canada Greenland |
geographic_facet |
Arctic Baffin Bay Canada Greenland |
genre |
Arctic Baffin Bay Baffin Bay Baffin Greenland greenlandic |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Greenland greenlandic |
op_source |
ISSN: 0149-0451 |
op_relation |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=13877 https://dx.doi.org/10.1080/01490451.2012.758195 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1080/01490451.2012.758195 |
container_title |
Geomicrobiology Journal |
container_volume |
30 |
container_issue |
8 |
container_start_page |
690 |
op_container_end_page |
705 |
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1784888679827767296 |