A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland)
A several centimeter thick, H2S-oxidizing microbial mat was encountered in a high-latitude Arctic fjord. Microscopic investigations revealed that the mat contained numerous filamentous bacteria, and fluorescence in situ hybridization showed that the vast majority of these belonged to gamma-Proteobac...
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Online Access: | https://pure.uhi.ac.uk/en/publications/9a95457f-793e-4ac8-84cc-534cd1ff0b2c https://doi.org/10.1007/s00227-004-1296-8 |
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ftuhipublicatio:oai:pure.atira.dk:publications/9a95457f-793e-4ac8-84cc-534cd1ff0b2c 2024-02-04T09:56:28+01:00 A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) Glud, Ronnie Rysgaard, S Fenchel, T Nielsen, PH 2004 https://pure.uhi.ac.uk/en/publications/9a95457f-793e-4ac8-84cc-534cd1ff0b2c https://doi.org/10.1007/s00227-004-1296-8 eng eng info:eu-repo/semantics/restrictedAccess Glud , R , Rysgaard , S , Fenchel , T & Nielsen , PH 2004 , ' A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) ' , MAR BIOL , vol. 145 , no. 1 , pp. 51-60 . https://doi.org/10.1007/s00227-004-1296-8 H2S THIOTHRIX Marine & Freshwater Biology MICROSENSOR BEGGIATOA ACTIVATED-SLUDGE COLORLESS SULFUR BACTERIA IDENTIFICATION FILAMENTOUS BACTERIA IN-SITU DETECTION HYDROTHERMAL VENTS article 2004 ftuhipublicatio https://doi.org/10.1007/s00227-004-1296-8 2024-01-11T23:20:55Z A several centimeter thick, H2S-oxidizing microbial mat was encountered in a high-latitude Arctic fjord. Microscopic investigations revealed that the mat contained numerous filamentous bacteria, and fluorescence in situ hybridization showed that the vast majority of these belonged to gamma-Proteobacteria and that Thiothrix spp. was present. The mat grew on a layer of accumulated decaying macroalgae and was characterized by a complex three-dimensional structure consisting of numerous holes, voids and chimney-like structures. Microsensor measurements performed in situ and in a laboratory-established mesocosm showed a highly dynamic O-2, pH and H2S distribution, especially around protruding structures of the mat. Detailed microsensor investigations documented that anoxic sulfidic water emerged trough the chimneys and indicated a microcirculation, replenishing the emerging water with oxygenated water in areas were the mat was absent. This governed an efficient advective exchange of solutes and presumably allowed the mat to grow to the extensive thickness of several centimeters. Article in Journal/Newspaper Arctic Arctic Greenland University of the Highlands and Islands: Research Database of UHI Arctic Greenland Marine Biology 145 1 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
H2S THIOTHRIX Marine & Freshwater Biology MICROSENSOR BEGGIATOA ACTIVATED-SLUDGE COLORLESS SULFUR BACTERIA IDENTIFICATION FILAMENTOUS BACTERIA IN-SITU DETECTION HYDROTHERMAL VENTS |
spellingShingle |
H2S THIOTHRIX Marine & Freshwater Biology MICROSENSOR BEGGIATOA ACTIVATED-SLUDGE COLORLESS SULFUR BACTERIA IDENTIFICATION FILAMENTOUS BACTERIA IN-SITU DETECTION HYDROTHERMAL VENTS Glud, Ronnie Rysgaard, S Fenchel, T Nielsen, PH A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) |
topic_facet |
H2S THIOTHRIX Marine & Freshwater Biology MICROSENSOR BEGGIATOA ACTIVATED-SLUDGE COLORLESS SULFUR BACTERIA IDENTIFICATION FILAMENTOUS BACTERIA IN-SITU DETECTION HYDROTHERMAL VENTS |
description |
A several centimeter thick, H2S-oxidizing microbial mat was encountered in a high-latitude Arctic fjord. Microscopic investigations revealed that the mat contained numerous filamentous bacteria, and fluorescence in situ hybridization showed that the vast majority of these belonged to gamma-Proteobacteria and that Thiothrix spp. was present. The mat grew on a layer of accumulated decaying macroalgae and was characterized by a complex three-dimensional structure consisting of numerous holes, voids and chimney-like structures. Microsensor measurements performed in situ and in a laboratory-established mesocosm showed a highly dynamic O-2, pH and H2S distribution, especially around protruding structures of the mat. Detailed microsensor investigations documented that anoxic sulfidic water emerged trough the chimneys and indicated a microcirculation, replenishing the emerging water with oxygenated water in areas were the mat was absent. This governed an efficient advective exchange of solutes and presumably allowed the mat to grow to the extensive thickness of several centimeters. |
format |
Article in Journal/Newspaper |
author |
Glud, Ronnie Rysgaard, S Fenchel, T Nielsen, PH |
author_facet |
Glud, Ronnie Rysgaard, S Fenchel, T Nielsen, PH |
author_sort |
Glud, Ronnie |
title |
A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) |
title_short |
A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) |
title_full |
A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) |
title_fullStr |
A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) |
title_full_unstemmed |
A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) |
title_sort |
conspicuous h2s-oxidizing microbial mat from a high-latitude arctic fjord (young sound, ne greenland) |
publishDate |
2004 |
url |
https://pure.uhi.ac.uk/en/publications/9a95457f-793e-4ac8-84cc-534cd1ff0b2c https://doi.org/10.1007/s00227-004-1296-8 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Greenland |
genre_facet |
Arctic Arctic Greenland |
op_source |
Glud , R , Rysgaard , S , Fenchel , T & Nielsen , PH 2004 , ' A conspicuous H2S-oxidizing microbial mat from a high-latitude Arctic fjord (Young Sound, NE Greenland) ' , MAR BIOL , vol. 145 , no. 1 , pp. 51-60 . https://doi.org/10.1007/s00227-004-1296-8 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00227-004-1296-8 |
container_title |
Marine Biology |
container_volume |
145 |
container_issue |
1 |
_version_ |
1789960965369888768 |