Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges
Microbial sulfate reduction is generally limited in the deep sea compared to shallower marine environments, but cold seeps and hydrothermal systems are considered an exception. Here, we report sulfate reduction rates and geochemical data from marine sediments and hydrothermal vent fields along the A...
Published in: | Frontiers in Marine Science |
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Language: | English |
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2024
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Online Access: | https://doi.org/10.3389/fmars.2023.1320655 https://doaj.org/article/24948b0b405941eabdd599757ac0b743 |
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ftdoajarticles:oai:doaj.org/article:24948b0b405941eabdd599757ac0b743 2024-02-11T10:01:16+01:00 Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges Desiree L. Roerdink Francesca Vulcano Jan-Kristoffer Landro Karen E. Moltubakk Hannah R. Babel Steffen Leth Jørgensen Tamara Baumberger Ingeborg E. Økland Eoghan P. Reeves Ingunn H. Thorseth Laila J. Reigstad Harald Strauss Ida H. Steen 2024-01-01T00:00:00Z https://doi.org/10.3389/fmars.2023.1320655 https://doaj.org/article/24948b0b405941eabdd599757ac0b743 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2023.1320655/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1320655 https://doaj.org/article/24948b0b405941eabdd599757ac0b743 Frontiers in Marine Science, Vol 10 (2024) microbial sulfate reduction hydrothermal chimneys hydrothermal sediment marine sediment spreading ridges rift valley Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2024 ftdoajarticles https://doi.org/10.3389/fmars.2023.1320655 2024-01-14T01:37:49Z Microbial sulfate reduction is generally limited in the deep sea compared to shallower marine environments, but cold seeps and hydrothermal systems are considered an exception. Here, we report sulfate reduction rates and geochemical data from marine sediments and hydrothermal vent fields along the Arctic Mid Ocean Ridges (AMOR), to assess the significance of basalt-hosted hydrothermal activity on sulfate reduction in a distal deep marine setting. We find that cored marine sediments do not display evidence for sulfate reduction, apart from low rates in sediments from the Knipovich Ridge. This likely reflects the overall limited availability of reactive organic matter and low sedimentation rates along the AMOR, except for areas in the vicinity of Svalbard and Bear Island. In contrast, hydrothermal samples from the Seven Sisters, Jan Mayen and Loki’s Castle vent fields all demonstrate active microbial sulfate reduction. Rates increase from a few 10s to 100s of pmol SO42- cm-3 d-1 in active high-temperature hydrothermal chimneys, to 10s of nmol SO42- cm-3 d-1 in low-temperature barite chimneys and up to 110 nmol cm-3 d-1 in diffuse venting hydrothermal sediments in the Barite field at Loki’s Castle. Pore fluid and sediment geochemical data suggest that these high rates are sustained by organic compounds from microbial mats and vent fauna as well as methane supplied by high-temperature hydrothermal fluids. However, significant variation was observed between replicate hydrothermal samples and observation of high rates in seemingly inactive barite chimneys suggests that other electron donors may be important as well. Sediment sulfur isotope signatures concur with measured rates in the Barite field and indicate that microbial sulfate reduction has occurred in the hydrothermal sediments since the recent geological past. Our findings indicate that basalt-hosted vent fields provide sufficient electron donors to support microbial sulfate reduction in high- and low-temperature hydrothermal areas in settings that otherwise ... Article in Journal/Newspaper Arctic Bear Island Jan Mayen Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) Jan Mayen Knipovich Ridge ENVELOPE(7.074,7.074,75.712,75.712) Svalbard Svalbard ENVELOPE(20.000,20.000,78.000,78.000) Frontiers in Marine Science 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
microbial sulfate reduction hydrothermal chimneys hydrothermal sediment marine sediment spreading ridges rift valley Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
microbial sulfate reduction hydrothermal chimneys hydrothermal sediment marine sediment spreading ridges rift valley Science Q General. Including nature conservation geographical distribution QH1-199.5 Desiree L. Roerdink Francesca Vulcano Jan-Kristoffer Landro Karen E. Moltubakk Hannah R. Babel Steffen Leth Jørgensen Tamara Baumberger Ingeborg E. Økland Eoghan P. Reeves Ingunn H. Thorseth Laila J. Reigstad Harald Strauss Ida H. Steen Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges |
topic_facet |
microbial sulfate reduction hydrothermal chimneys hydrothermal sediment marine sediment spreading ridges rift valley Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Microbial sulfate reduction is generally limited in the deep sea compared to shallower marine environments, but cold seeps and hydrothermal systems are considered an exception. Here, we report sulfate reduction rates and geochemical data from marine sediments and hydrothermal vent fields along the Arctic Mid Ocean Ridges (AMOR), to assess the significance of basalt-hosted hydrothermal activity on sulfate reduction in a distal deep marine setting. We find that cored marine sediments do not display evidence for sulfate reduction, apart from low rates in sediments from the Knipovich Ridge. This likely reflects the overall limited availability of reactive organic matter and low sedimentation rates along the AMOR, except for areas in the vicinity of Svalbard and Bear Island. In contrast, hydrothermal samples from the Seven Sisters, Jan Mayen and Loki’s Castle vent fields all demonstrate active microbial sulfate reduction. Rates increase from a few 10s to 100s of pmol SO42- cm-3 d-1 in active high-temperature hydrothermal chimneys, to 10s of nmol SO42- cm-3 d-1 in low-temperature barite chimneys and up to 110 nmol cm-3 d-1 in diffuse venting hydrothermal sediments in the Barite field at Loki’s Castle. Pore fluid and sediment geochemical data suggest that these high rates are sustained by organic compounds from microbial mats and vent fauna as well as methane supplied by high-temperature hydrothermal fluids. However, significant variation was observed between replicate hydrothermal samples and observation of high rates in seemingly inactive barite chimneys suggests that other electron donors may be important as well. Sediment sulfur isotope signatures concur with measured rates in the Barite field and indicate that microbial sulfate reduction has occurred in the hydrothermal sediments since the recent geological past. Our findings indicate that basalt-hosted vent fields provide sufficient electron donors to support microbial sulfate reduction in high- and low-temperature hydrothermal areas in settings that otherwise ... |
format |
Article in Journal/Newspaper |
author |
Desiree L. Roerdink Francesca Vulcano Jan-Kristoffer Landro Karen E. Moltubakk Hannah R. Babel Steffen Leth Jørgensen Tamara Baumberger Ingeborg E. Økland Eoghan P. Reeves Ingunn H. Thorseth Laila J. Reigstad Harald Strauss Ida H. Steen |
author_facet |
Desiree L. Roerdink Francesca Vulcano Jan-Kristoffer Landro Karen E. Moltubakk Hannah R. Babel Steffen Leth Jørgensen Tamara Baumberger Ingeborg E. Økland Eoghan P. Reeves Ingunn H. Thorseth Laila J. Reigstad Harald Strauss Ida H. Steen |
author_sort |
Desiree L. Roerdink |
title |
Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges |
title_short |
Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges |
title_full |
Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges |
title_fullStr |
Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges |
title_full_unstemmed |
Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges |
title_sort |
hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the arctic mid ocean ridges |
publisher |
Frontiers Media S.A. |
publishDate |
2024 |
url |
https://doi.org/10.3389/fmars.2023.1320655 https://doaj.org/article/24948b0b405941eabdd599757ac0b743 |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) ENVELOPE(7.074,7.074,75.712,75.712) ENVELOPE(20.000,20.000,78.000,78.000) |
geographic |
Arctic Bear Island Jan Mayen Knipovich Ridge Svalbard Svalbard |
geographic_facet |
Arctic Bear Island Jan Mayen Knipovich Ridge Svalbard Svalbard |
genre |
Arctic Bear Island Jan Mayen Svalbard |
genre_facet |
Arctic Bear Island Jan Mayen Svalbard |
op_source |
Frontiers in Marine Science, Vol 10 (2024) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2023.1320655/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1320655 https://doaj.org/article/24948b0b405941eabdd599757ac0b743 |
op_doi |
https://doi.org/10.3389/fmars.2023.1320655 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
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1790597053152231424 |