Biodegradation of weathered crude oil in seawater with frazil ice
As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil dispersions (2–3 ppm) were incubated in a mixture of natural seawater and frazi...
Published in: | Marine Pollution Bulletin |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
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Online Access: | https://doi.org/10.1016/j.marpolbul.2020.111090 https://nrc-publications.canada.ca/eng/view/ft/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 https://nrc-publications.canada.ca/eng/view/object/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 https://nrc-publications.canada.ca/fra/voir/objet/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 |
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:4c458474-a1b0-4877-91b3-e3bc1549e6a5 2023-05-15T15:04:41+02:00 Biodegradation of weathered crude oil in seawater with frazil ice Lofthus, Synnøve Bakke, Ingrid Tremblay, Julien Greer, Charles W. Brakstad, Odd Gunnar 2020-04-06 text https://doi.org/10.1016/j.marpolbul.2020.111090 https://nrc-publications.canada.ca/eng/view/ft/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 https://nrc-publications.canada.ca/eng/view/object/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 https://nrc-publications.canada.ca/fra/voir/objet/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 eng eng Elsevier issn:0025-326X Marine Pollution Bulletin, Volume: 154, Publication date: 2020-04-06, Pages: 1–12 doi:10.1016/j.marpolbul.2020.111090 Creative Commons, Attribution 4.0 Generic (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/) Creative Commons, Attribution 4.0 Générique (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/deed.fr) CC-BY crude oil frazil ice hydrocarbon biodegradation microbial communities seawater article 2020 ftnrccanada https://doi.org/10.1016/j.marpolbul.2020.111090 2021-09-01T06:35:02Z As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil dispersions (2–3 ppm) were incubated in a mixture of natural seawater and frazil ice for 125 days at −2 °C. Dispersed oil in seawater without frazil ice were included in the experimental setup. Presence or absence of frazil ice was a strong driver for microbial community structures and affected the rate of oil degradation. n-alkanes were degraded faster in the presence of frazil ice, the opposite was the case for naphthalenes and 2–3 ring PAHs. No degradation of 4–6 ring PAHs was observed in any of the treatments. The total petroleum oil was not degraded to any significant degree, suggesting that oil will freeze into the ice matrix and persist throughout the icy season. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Arctic National Research Council Canada: NRC Publications Archive Arctic Marine Pollution Bulletin 154 111090 |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
crude oil frazil ice hydrocarbon biodegradation microbial communities seawater |
spellingShingle |
crude oil frazil ice hydrocarbon biodegradation microbial communities seawater Lofthus, Synnøve Bakke, Ingrid Tremblay, Julien Greer, Charles W. Brakstad, Odd Gunnar Biodegradation of weathered crude oil in seawater with frazil ice |
topic_facet |
crude oil frazil ice hydrocarbon biodegradation microbial communities seawater |
description |
As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil dispersions (2–3 ppm) were incubated in a mixture of natural seawater and frazil ice for 125 days at −2 °C. Dispersed oil in seawater without frazil ice were included in the experimental setup. Presence or absence of frazil ice was a strong driver for microbial community structures and affected the rate of oil degradation. n-alkanes were degraded faster in the presence of frazil ice, the opposite was the case for naphthalenes and 2–3 ring PAHs. No degradation of 4–6 ring PAHs was observed in any of the treatments. The total petroleum oil was not degraded to any significant degree, suggesting that oil will freeze into the ice matrix and persist throughout the icy season. Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Lofthus, Synnøve Bakke, Ingrid Tremblay, Julien Greer, Charles W. Brakstad, Odd Gunnar |
author_facet |
Lofthus, Synnøve Bakke, Ingrid Tremblay, Julien Greer, Charles W. Brakstad, Odd Gunnar |
author_sort |
Lofthus, Synnøve |
title |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_short |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_full |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_fullStr |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_full_unstemmed |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_sort |
biodegradation of weathered crude oil in seawater with frazil ice |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://doi.org/10.1016/j.marpolbul.2020.111090 https://nrc-publications.canada.ca/eng/view/ft/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 https://nrc-publications.canada.ca/eng/view/object/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 https://nrc-publications.canada.ca/fra/voir/objet/?id=4c458474-a1b0-4877-91b3-e3bc1549e6a5 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
issn:0025-326X Marine Pollution Bulletin, Volume: 154, Publication date: 2020-04-06, Pages: 1–12 doi:10.1016/j.marpolbul.2020.111090 |
op_rights |
Creative Commons, Attribution 4.0 Generic (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/) Creative Commons, Attribution 4.0 Générique (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/deed.fr) |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.marpolbul.2020.111090 |
container_title |
Marine Pollution Bulletin |
container_volume |
154 |
container_start_page |
111090 |
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1766336423057686528 |