globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2156
论文题名:
The rise and fall of methanotrophy following a deepwater oil-well blowout
作者: Crespo-Medina M.; Meile C.D.; Hunter K.S.; Diercks A.-R.; Asper V.L.; Orphan V.J.; Tavormina P.L.; Nigro L.M.; Battles J.J.; Chanton J.P.; Shiller A.M.; Joung D.-J.; Amon R.M.W.; Bracco A.; Montoya J.P.; Villareal T.A.; Wood A.M.; Joye S.B.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2014
卷: 7, 期:6
起始页码: 423
结束页码: 427
语种: 英语
Scopus关键词: abundance ; blowout ; environmental factor ; methane ; methanogenic bacterium ; methanotrophy ; microbial activity ; oil spill ; oil well ; oxidation ; Atlantic Ocean ; Gulf of Mexico
英文摘要: The blowout of the Macondo oil well in the Gulf of Mexico in April 2010 injected up to 500,000 tonnes of natural gas, mainly methane, into the deep sea. Most of the methane released was thought to have been consumed by marine microbes between July and August 2010. Here, we report spatially extensive measurements of methane concentrations and oxidation rates in the nine months following the spill. We show that although gas-rich deepwater plumes were a short-lived feature, water column concentrations of methane remained above background levels throughout the rest of the year. Rates of microbial methane oxidation peaked in the deepwater plumes in May and early June, coincident with a rapid rise in the abundance of known and new methane-oxidizing microbes. At this time, rates of methane oxidation reached up to 5,900 nmol l-1 d -1 - the highest rates documented in the global pelagic ocean before the blowout4. Rates of methane oxidation fell to less than 50 nmol l-1 d -1 in late June, and continued to decline throughout the remainder of the year. We suggest the precipitous drop in methane consumption in late June, despite the persistence of methane in the water column, underscores the important role that physiological and environmental factors play in constraining the activity of methane-oxidizing bacteria in the Gulf of Mexico. © 2014 Macmillan Publishers Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106518
Appears in Collections:气候减缓与适应
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作者单位: Department of Marine Sciences, University of Georgia, Athens, GA 30602, United States; National Institute of Underwater Science and Technology, University of Southern Mississippi, Abbeville, MS 38601, United States; Department of Marine Science, University of Southern Mississippi, Stennis Space Center, Mississippi 39529, United States; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States; Department of Marine Sciences, University of North Carolina, Chapel Hill, NC 27599, United States; Department of Earth, Ocean, and Atmospheric Sciences, Florida State University, Tallahassee, FL 32306, United States; Department of Marine Sciences, Texas A and M University, Galveston, TX 77551, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, United States; School of Biology, Georgia Institute of Technology, Atlanta, GA 30332, United States; Marine Sciences Institute, University of Texas-Austin, Port Aransas, TX 78373, United States; NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL 33149, United States

Recommended Citation:
Crespo-Medina M.,Meile C.D.,Hunter K.S.,et al. The rise and fall of methanotrophy following a deepwater oil-well blowout[J]. Nature Geoscience,2014-01-01,7(6)
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