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DOI | 10.1029/2021GL094819 |
Pelagic methane sink enhanced by benthic methanotrophs ejected from a gas seep | |
S. F. A. Jordan; U. Grä; we; T. Treude; E. M. van der Lee; J. Schneider von Deimling; G. Rehder; O. Schmale | |
2021-10-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Cold seeps represent hot spots of seabed-derived methane emissions to the water column, where physical and biological barriers regulate transport of methane to the atmosphere. In our study, we used a methane point source in the North Sea to investigate water-column methane dynamics within the dispersing plumes. The study is based on methane concentration, distribution and activity of methane-oxidizing bacteria (MOB), and oceanographic observations. Our findings suggest the ejection of benthic MOB into the water column by sediment resuspension and gas-bubble-mediated transport. An applied particle-tracking model demonstrated that the ejection of 4.29 ± 1.9 x 1012 MOB cells s−1 from the seep site would produce the MOB abundance detected in the down-current water body. The benthic MOB inoculant accelerated methane oxidation rates by a factor of five. Our study highlights the importance of the bentho-pelagic transport of microorganisms at seep sites and their feedback on the pelagic methane sink. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/339875 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | S. F. A. Jordan,U. Grä,we,et al. Pelagic methane sink enhanced by benthic methanotrophs ejected from a gas seep[J]. Geophysical Research Letters,2021. |
APA | S. F. A. Jordan.,U. Grä.,we.,T. Treude.,E. M. van der Lee.,...&O. Schmale.(2021).Pelagic methane sink enhanced by benthic methanotrophs ejected from a gas seep.Geophysical Research Letters. |
MLA | S. F. A. Jordan,et al."Pelagic methane sink enhanced by benthic methanotrophs ejected from a gas seep".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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