Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes
The spatial extent and persistence of bacterial change caused by deposition of water-based drill cuttings on the seafloor were explored by a community-wide approach. Ten centimeter sediment cores were sampled along transects extending from ≤15 m to 250 m from three nearby drilling sites in the south...
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Online Access: | https://hdl.handle.net/10037/20632 https://doi.org/10.1016/j.marpolbul.2021.111987 |
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ftunivtroemsoe:oai:munin.uit.no:10037/20632 2023-05-15T15:38:36+02:00 Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes Nguyen, Tan Thi Paulsen, John E. Landfald, Bjarne 2021-01-27 https://hdl.handle.net/10037/20632 https://doi.org/10.1016/j.marpolbul.2021.111987 eng eng Elsevier Marine Pollution Bulletin Nguyen TT, Landfald B. Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes. Marine Pollution Bulletin. 2021;164 FRIDAID 1881497 https://doi.org/10.1016/j.marpolbul.2021.111987 0025-326X 1879-3363 https://hdl.handle.net/10037/20632 openAccess Copyright 2021 The Author(s) VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2021 ftunivtroemsoe https://doi.org/10.1016/j.marpolbul.2021.111987 2021-06-25T17:58:02Z The spatial extent and persistence of bacterial change caused by deposition of water-based drill cuttings on the seafloor were explored by a community-wide approach. Ten centimeter sediment cores were sampled along transects extending from ≤15 m to 250 m from three nearby drilling sites in the southern Barents Sea. Eight months, 8 years and 15 years, respectively, had passed since the completion of the drillings. At locations heavily affected by drill cuttings, the two most recent sites showed distinct, corresponding deviances from native Barents Sea bacterial community profiles. Otherwise marginal groups, including Mollicutes and Clostridia, showed significant increases in relative abundance. Beyond 100 m from the boreholes the microbiotas appeared undisturbed, as they did at any distance from the 15-years old borehole. The extent of the biological distortion, as indicated by the present microbial study, agreed with previously published macrofaunal surveys at the same drilling sites. Article in Journal/Newspaper Barents Sea University of Tromsø: Munin Open Research Archive Barents Sea Marine Pollution Bulletin 164 111987 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Nguyen, Tan Thi Paulsen, John E. Landfald, Bjarne Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes |
topic_facet |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 |
description |
The spatial extent and persistence of bacterial change caused by deposition of water-based drill cuttings on the seafloor were explored by a community-wide approach. Ten centimeter sediment cores were sampled along transects extending from ≤15 m to 250 m from three nearby drilling sites in the southern Barents Sea. Eight months, 8 years and 15 years, respectively, had passed since the completion of the drillings. At locations heavily affected by drill cuttings, the two most recent sites showed distinct, corresponding deviances from native Barents Sea bacterial community profiles. Otherwise marginal groups, including Mollicutes and Clostridia, showed significant increases in relative abundance. Beyond 100 m from the boreholes the microbiotas appeared undisturbed, as they did at any distance from the 15-years old borehole. The extent of the biological distortion, as indicated by the present microbial study, agreed with previously published macrofaunal surveys at the same drilling sites. |
format |
Article in Journal/Newspaper |
author |
Nguyen, Tan Thi Paulsen, John E. Landfald, Bjarne |
author_facet |
Nguyen, Tan Thi Paulsen, John E. Landfald, Bjarne |
author_sort |
Nguyen, Tan Thi |
title |
Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes |
title_short |
Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes |
title_full |
Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes |
title_fullStr |
Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes |
title_full_unstemmed |
Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes |
title_sort |
seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/20632 https://doi.org/10.1016/j.marpolbul.2021.111987 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_relation |
Marine Pollution Bulletin Nguyen TT, Landfald B. Seafloor deposition of water-based drill cuttings generates distinctive and lengthy sediment bacterial community changes. Marine Pollution Bulletin. 2021;164 FRIDAID 1881497 https://doi.org/10.1016/j.marpolbul.2021.111987 0025-326X 1879-3363 https://hdl.handle.net/10037/20632 |
op_rights |
openAccess Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.1016/j.marpolbul.2021.111987 |
container_title |
Marine Pollution Bulletin |
container_volume |
164 |
container_start_page |
111987 |
_version_ |
1766369718565863424 |