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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0084297
论文题名:	Biodegradation of Dispersed Oil in Arctic Seawater at -1°C
作者:	Kelly M. McFarlin; Roger C. Prince; Robert Perkins; Mary Beth Leigh
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-1-8
卷:	9, 期:1
语种:	英语
英文关键词:	Oils ; Biodegradation ; Sea water ; Crude oil ; Hydrocarbons ; Mesocosms ; Petroleum ; Respirometry
英文摘要:	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.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0084297&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18976
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0084297.PDF（839KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America;ExxonMobil Biomedical Sciences, Inc., Annandale, New Jersey, United States of America;Institute of Northern Engineering, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America;Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America

Recommended Citation:

Kelly M. McFarlin,Roger C. Prince,Robert Perkins,et al. Biodegradation of Dispersed Oil in Arctic Seawater at -1°C[J]. PLOS ONE,2014-01-01,9(1)

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