Biodegradation of dispersed oil in Arctic seawater at -1°C.
As offshore oil and gas exploration expands in the Arctic, it is important to expand the scientific understanding of arctic ecology and environmental impact to mitigate operational risks. Understanding the fate of oil in arctic seawater is a key factor for consideration. Here we report the chemical...
Published in: | PLoS ONE |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2014
|
Subjects: | |
Online Access: | https://doi.org/10.1371/journal.pone.0084297 https://doaj.org/article/f86c5df4d2b5493c9b9a238dd38fd449 |
id |
ftdoajarticles:oai:doaj.org/article:f86c5df4d2b5493c9b9a238dd38fd449 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:f86c5df4d2b5493c9b9a238dd38fd449 2023-05-15T13:09:06+02:00 Biodegradation of dispersed oil in Arctic seawater at -1°C. Kelly M McFarlin Roger C Prince Robert Perkins Mary Beth Leigh 2014-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0084297 https://doaj.org/article/f86c5df4d2b5493c9b9a238dd38fd449 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3885550?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0084297 https://doaj.org/article/f86c5df4d2b5493c9b9a238dd38fd449 PLoS ONE, Vol 9, Iss 1, p e84297 (2014) Medicine R Science Q article 2014 ftdoajarticles https://doi.org/10.1371/journal.pone.0084297 2022-12-31T05:55:14Z As offshore oil and gas exploration expands in the Arctic, it is important to expand the scientific understanding of arctic ecology and environmental impact to mitigate operational risks. Understanding the fate of oil in arctic seawater is a key factor for consideration. Here we report the chemical loss due to the biodegradation of Alaska North Slope (ANS) crude oil that would occur in the water column following the successful dispersion of a surface oil slick. Primary biodegradation and mineralization were measured in mesocosms containing Arctic seawater collected from the Chukchi Sea, Alaska, incubated at -1°C. Indigenous microorganisms degraded both fresh and weathered oil, in both the presence and absence of Corexit 9500, with oil losses ranging from 46-61% and up to 11% mineralization over 60 days. When tested alone, 14% of 50 ppm Corexit 9500 was mineralized within 60 days. Our study reveals that microorganisms indigenous to Arctic seawater are capable of performing extensive biodegradation of chemically and physically dispersed oil at an environmentally relevant temperature (-1°C) without any additional nutrients. Article in Journal/Newspaper Alaska North Slope Arctic Chukchi Chukchi Sea north slope Alaska Directory of Open Access Journals: DOAJ Articles Arctic Chukchi Sea PLoS ONE 9 1 e84297 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Kelly M McFarlin Roger C Prince Robert Perkins Mary Beth Leigh Biodegradation of dispersed oil in Arctic seawater at -1°C. |
topic_facet |
Medicine R Science Q |
description |
As offshore oil and gas exploration expands in the Arctic, it is important to expand the scientific understanding of arctic ecology and environmental impact to mitigate operational risks. Understanding the fate of oil in arctic seawater is a key factor for consideration. Here we report the chemical loss due to the biodegradation of Alaska North Slope (ANS) crude oil that would occur in the water column following the successful dispersion of a surface oil slick. Primary biodegradation and mineralization were measured in mesocosms containing Arctic seawater collected from the Chukchi Sea, Alaska, incubated at -1°C. Indigenous microorganisms degraded both fresh and weathered oil, in both the presence and absence of Corexit 9500, with oil losses ranging from 46-61% and up to 11% mineralization over 60 days. When tested alone, 14% of 50 ppm Corexit 9500 was mineralized within 60 days. Our study reveals that microorganisms indigenous to Arctic seawater are capable of performing extensive biodegradation of chemically and physically dispersed oil at an environmentally relevant temperature (-1°C) without any additional nutrients. |
format |
Article in Journal/Newspaper |
author |
Kelly M McFarlin Roger C Prince Robert Perkins Mary Beth Leigh |
author_facet |
Kelly M McFarlin Roger C Prince Robert Perkins Mary Beth Leigh |
author_sort |
Kelly M McFarlin |
title |
Biodegradation of dispersed oil in Arctic seawater at -1°C. |
title_short |
Biodegradation of dispersed oil in Arctic seawater at -1°C. |
title_full |
Biodegradation of dispersed oil in Arctic seawater at -1°C. |
title_fullStr |
Biodegradation of dispersed oil in Arctic seawater at -1°C. |
title_full_unstemmed |
Biodegradation of dispersed oil in Arctic seawater at -1°C. |
title_sort |
biodegradation of dispersed oil in arctic seawater at -1°c. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2014 |
url |
https://doi.org/10.1371/journal.pone.0084297 https://doaj.org/article/f86c5df4d2b5493c9b9a238dd38fd449 |
geographic |
Arctic Chukchi Sea |
geographic_facet |
Arctic Chukchi Sea |
genre |
Alaska North Slope Arctic Chukchi Chukchi Sea north slope Alaska |
genre_facet |
Alaska North Slope Arctic Chukchi Chukchi Sea north slope Alaska |
op_source |
PLoS ONE, Vol 9, Iss 1, p e84297 (2014) |
op_relation |
http://europepmc.org/articles/PMC3885550?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0084297 https://doaj.org/article/f86c5df4d2b5493c9b9a238dd38fd449 |
op_doi |
https://doi.org/10.1371/journal.pone.0084297 |
container_title |
PLoS ONE |
container_volume |
9 |
container_issue |
1 |
container_start_page |
e84297 |
_version_ |
1766162835384041472 |