Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice.
Abstract Oil spilled in the Arctic may drift into ice-covered areas and become trapped until the ice melts. To determine if exposure to oil during freezing may have a priming effect on degradation of the oil, weathered dispersed oil (2-3 mg/L) was frozen into solid ice for 200 days at -10 °C, then m...
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2021
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Online Access: | https://www.openaccessrepository.it/record/86443 https://doi.org/10.1016/j.marpolbul.2021.112823 |
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ftopenaccessrep:oai:zenodo.org:86443 2023-10-25T01:35:41+02:00 Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice. Synnøve Lofthus Ingrid Bakke Odd Gunnar Brakstad Charles W. Greer 2021-11-01 https://www.openaccessrepository.it/record/86443 https://doi.org/10.1016/j.marpolbul.2021.112823 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/86443 doi:10.1016/j.marpolbul.2021.112823 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Pollution Aquatic Science Oceanography info:eu-repo/semantics/article publication-article 2021 ftopenaccessrep https://doi.org/10.1016/j.marpolbul.2021.112823 2023-09-26T22:20:14Z Abstract Oil spilled in the Arctic may drift into ice-covered areas and become trapped until the ice melts. To determine if exposure to oil during freezing may have a priming effect on degradation of the oil, weathered dispersed oil (2-3 mg/L) was frozen into solid ice for 200 days at -10 °C, then melted and incubated for 64 days at 4 °C. No degradation was measured in oil frozen into ice prior to melting. Both total amount of oil and target compounds were biotransformed by the microbial community from the melted ice. However, oil released from melted ice was degraded at a slower rate than oil incubated in fresh seawater at the same temperature (4 °C), and by a different microbial community. These data suggest negligible biodegradation of oil frozen in sea ice, while oil-degrading bacteria surviving in the ice may contribute to biodegradation when the ice melts. Article in Journal/Newspaper Arctic Sea ice ice covered areas Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Arctic Marine Pollution Bulletin 172 112823 |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
topic |
Pollution Aquatic Science Oceanography |
spellingShingle |
Pollution Aquatic Science Oceanography Synnøve Lofthus Ingrid Bakke Odd Gunnar Brakstad Charles W. Greer Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice. |
topic_facet |
Pollution Aquatic Science Oceanography |
description |
Abstract Oil spilled in the Arctic may drift into ice-covered areas and become trapped until the ice melts. To determine if exposure to oil during freezing may have a priming effect on degradation of the oil, weathered dispersed oil (2-3 mg/L) was frozen into solid ice for 200 days at -10 °C, then melted and incubated for 64 days at 4 °C. No degradation was measured in oil frozen into ice prior to melting. Both total amount of oil and target compounds were biotransformed by the microbial community from the melted ice. However, oil released from melted ice was degraded at a slower rate than oil incubated in fresh seawater at the same temperature (4 °C), and by a different microbial community. These data suggest negligible biodegradation of oil frozen in sea ice, while oil-degrading bacteria surviving in the ice may contribute to biodegradation when the ice melts. |
format |
Article in Journal/Newspaper |
author |
Synnøve Lofthus Ingrid Bakke Odd Gunnar Brakstad Charles W. Greer |
author_facet |
Synnøve Lofthus Ingrid Bakke Odd Gunnar Brakstad Charles W. Greer |
author_sort |
Synnøve Lofthus |
title |
Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice. |
title_short |
Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice. |
title_full |
Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice. |
title_fullStr |
Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice. |
title_full_unstemmed |
Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice. |
title_sort |
biodegradation of weathered crude oil by microbial communities in solid and melted sea ice. |
publishDate |
2021 |
url |
https://www.openaccessrepository.it/record/86443 https://doi.org/10.1016/j.marpolbul.2021.112823 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice ice covered areas |
genre_facet |
Arctic Sea ice ice covered areas |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/86443 doi:10.1016/j.marpolbul.2021.112823 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1016/j.marpolbul.2021.112823 |
container_title |
Marine Pollution Bulletin |
container_volume |
172 |
container_start_page |
112823 |
_version_ |
1780730746543013888 |