根据最近公布的一项调查结果,在对墨西哥湾深水地平线钻井平台石油泄漏成功封堵后的调查发现微生物基本上吞噬掉了泄漏的甲烷,在四个月内把海水所含的甲烷含量降到了漏油事件前的水平。
Follow-up cruises in the Gulf of Mexico after the Deepwater Horizon oil spill was plugged found that microorganisms consumed all of the excess methane, reducing levels to background within about four months of the start of the spill, according to findings published recently。
真是让人吃惊,课题研究的带头人,得克萨斯大学的约翰凯瑟勒在《科学》杂志上这样写道,我们本来是认为仍旧有很多泄漏出来的甲烷在那里的,可事实是甲烷都消失了。
It was remarkable, said John Kessler of Texas AM University in College Station, lead author of the study, in Science. We had gone out there assuming that there would be plenty of methane still there and the fact was that it was all gone.
甲烷吞噬微生物在科学已知的微生物族群里是占比最大的。团队探测到的氧气水平只能解释为甲烷的完全的被吞噬。这样的证据证实了是微生物使得泄漏的甲烷消失的。凯瑟勒说。对于原油泄漏来说,这消息不错,特别是甲烷是深水地平线钻井平台泄漏原油的最大组成部分。
Methane-consuming microbes comprised the highest proportion researchers had ever seen in the overall microbial community, and the oxygen levels the team measured could only be explained by complete consumption of the methane. This evidence supported the idea that it was microbes that made the methane disappear, Kessler said.For the oil spill, it was a rather good story, he said, especially since methane was the largest component of the Deepwater Horizon spill。
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