Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea
Source at https://doi.org/10.5194/bg-15-7419-2018 . In this study, we report lipid biomarker patterns and phylogenetic identities of key microbial communities mediating anaerobic oxidation of methane (AOM) in active mud volcanoes (MVs) on the continental slope of the Canadian Beaufort Sea. The carbo...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
European Geosciences Union (EGU)
2018
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/14425 https://doi.org/10.5194/bg-15-7419-2018 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/14425 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/14425 2023-05-15T15:40:15+02:00 Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea Lee, Dong-Hun Kim, Jung-Hyun Lee, Yung Mi Stadnitskaia, Alina Jin, Young Keun Niemann, Helge Kim, Young-Gyun Shin, Kyung-Hoon 2018-12-20 https://hdl.handle.net/10037/14425 https://doi.org/10.5194/bg-15-7419-2018 eng eng European Geosciences Union (EGU) Biogeosciences Lee, D.-H., Kim, J.-H., Lee, Y. M., Stadnitskaia, A., Jin, Y. K., Niemann, H., … Shin, K.-H. (2018). Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea. Biogeosciences, 15, 7419-7433. https://doi.org/10.5194/bg-15-7419-2018. FRIDAID 1651360 doi:10.5194/bg-15-7419-2018 1726-4170 1726-4189 https://hdl.handle.net/10037/14425 openAccess VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466 VDP::Mathematics and natural science: 400::Geosciences: 450::Mineralogy petrology geochemistry: 462 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Mineralogi petrologi geokjemi: 462 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.5194/bg-15-7419-2018 2021-06-25T17:56:17Z Source at https://doi.org/10.5194/bg-15-7419-2018 . In this study, we report lipid biomarker patterns and phylogenetic identities of key microbial communities mediating anaerobic oxidation of methane (AOM) in active mud volcanoes (MVs) on the continental slope of the Canadian Beaufort Sea. The carbon isotopic compositions (δ13C) of sn-2- and sn-3-hydroxyarchaeol showed the highly 13C-depleted values (−114 ‰ to −82 ‰) associated with a steep depletion in sulfate concentrations within 0.7 m of sediment depths. This suggested the presence of methanotrophic archaea involved in sulfate-dependent AOM, albeit in a small amount. The ratio of sn-2-hydroxyarchaeol to archaeol (> 1) and operational taxonomic units (OTUs) indicated that the anaerobic methanotrophic archaea (ANME) clades ANME-2c and ANME-3 were involved in AOM. Higher δ13C values of archaeol and biphytanes (BPs; −55.2±10.0 ‰ and −39.3±13.0 ‰, respectively) suggested that archaeal communities were also assimilating AOM-derived inorganic carbon. Furthermore, the distinct distribution patterns of methanotrophs in the three MVs appears to be associated with varying intensities of ascending gas fluids. Consequently, our results suggest that the niche diversification of active mud volcanoes has shaped distinct archaeal communities that play important roles in AOM in the Beaufort Sea. Article in Journal/Newspaper Beaufort Sea University of Tromsø: Munin Open Research Archive Biogeosciences 15 24 7419 7433 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466 VDP::Mathematics and natural science: 400::Geosciences: 450::Mineralogy petrology geochemistry: 462 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Mineralogi petrologi geokjemi: 462 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466 VDP::Mathematics and natural science: 400::Geosciences: 450::Mineralogy petrology geochemistry: 462 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Mineralogi petrologi geokjemi: 462 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Lee, Dong-Hun Kim, Jung-Hyun Lee, Yung Mi Stadnitskaia, Alina Jin, Young Keun Niemann, Helge Kim, Young-Gyun Shin, Kyung-Hoon Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466 VDP::Mathematics and natural science: 400::Geosciences: 450::Mineralogy petrology geochemistry: 462 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Mineralogi petrologi geokjemi: 462 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
description |
Source at https://doi.org/10.5194/bg-15-7419-2018 . In this study, we report lipid biomarker patterns and phylogenetic identities of key microbial communities mediating anaerobic oxidation of methane (AOM) in active mud volcanoes (MVs) on the continental slope of the Canadian Beaufort Sea. The carbon isotopic compositions (δ13C) of sn-2- and sn-3-hydroxyarchaeol showed the highly 13C-depleted values (−114 ‰ to −82 ‰) associated with a steep depletion in sulfate concentrations within 0.7 m of sediment depths. This suggested the presence of methanotrophic archaea involved in sulfate-dependent AOM, albeit in a small amount. The ratio of sn-2-hydroxyarchaeol to archaeol (> 1) and operational taxonomic units (OTUs) indicated that the anaerobic methanotrophic archaea (ANME) clades ANME-2c and ANME-3 were involved in AOM. Higher δ13C values of archaeol and biphytanes (BPs; −55.2±10.0 ‰ and −39.3±13.0 ‰, respectively) suggested that archaeal communities were also assimilating AOM-derived inorganic carbon. Furthermore, the distinct distribution patterns of methanotrophs in the three MVs appears to be associated with varying intensities of ascending gas fluids. Consequently, our results suggest that the niche diversification of active mud volcanoes has shaped distinct archaeal communities that play important roles in AOM in the Beaufort Sea. |
format |
Article in Journal/Newspaper |
author |
Lee, Dong-Hun Kim, Jung-Hyun Lee, Yung Mi Stadnitskaia, Alina Jin, Young Keun Niemann, Helge Kim, Young-Gyun Shin, Kyung-Hoon |
author_facet |
Lee, Dong-Hun Kim, Jung-Hyun Lee, Yung Mi Stadnitskaia, Alina Jin, Young Keun Niemann, Helge Kim, Young-Gyun Shin, Kyung-Hoon |
author_sort |
Lee, Dong-Hun |
title |
Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_short |
Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_full |
Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_fullStr |
Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_full_unstemmed |
Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_sort |
biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the canadian beaufort sea |
publisher |
European Geosciences Union (EGU) |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/14425 https://doi.org/10.5194/bg-15-7419-2018 |
genre |
Beaufort Sea |
genre_facet |
Beaufort Sea |
op_relation |
Biogeosciences Lee, D.-H., Kim, J.-H., Lee, Y. M., Stadnitskaia, A., Jin, Y. K., Niemann, H., … Shin, K.-H. (2018). Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea. Biogeosciences, 15, 7419-7433. https://doi.org/10.5194/bg-15-7419-2018. FRIDAID 1651360 doi:10.5194/bg-15-7419-2018 1726-4170 1726-4189 https://hdl.handle.net/10037/14425 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.5194/bg-15-7419-2018 |
container_title |
Biogeosciences |
container_volume |
15 |
container_issue |
24 |
container_start_page |
7419 |
op_container_end_page |
7433 |
_version_ |
1766372430932082688 |