Nutrient depletion as a proxy for microbial growth in Deepwater Horizon subsurface oil/gas plumes
Nutrient depletion as a proxy for microbial growth in Deepwater Horizon subsurface oil/gas plumes
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营养消耗作为深水地平线地下石油/天然气羽流中微生物生长的指标
DOI：
10.1088/1748-9326/7/4/045301
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发表时间：
2012
影响因子：
6.7
通讯作者：
Joung, DongJoo
中科院分区：
文献类型：
--
作者：
Shiller, Alan M;Joung, DongJoo
深水地平线事故导致大量不受控制的碳氢化合物泄漏到墨西哥湾北部，其中大部分被深埋在水下的羽流中。虽然碳氢化合物的生物降解已经从微生物生物量和遗传学中推断出来，但石油和天然气碳转化为生物质的数量仍然不确定，仅在建模研究中进行了估计。在这里，我们研究了水下羽流中硝酸盐、磷酸盐和氧气的相关消耗，并得出结论，这些羽流中的大部分碳氢化合物转化为生物质（0.8-2× 10 10 mol C）。这与营养有限的地表水形成对比，其他研究表明，碳氢化合物诱导的微生物生长很少。我们的研究结果表明，有必要更好地监测营养物质的变化，并研究未来类似的碳氢化合物释放中的营养物质循环。
The Deepwater Horizon accident resulted in a substantial uncontrolled hydrocarbon release to the northern Gulf of Mexico, much of which was entrained in deep submerged plumes. While bio-degradation of the hydrocarbons has been inferred from microbial biomass and genetics, the amount of conversion of oil and gas carbon to biomass remains uncertain having only been estimated in modeling studies. Here we examine correlated depletions of nitrate, phosphate and oxygen in the submerged plumes and conclude that a substantial portion of hydrocarbons in these plumes was converted to biomass (0.8–2× 10 10 mol C). This contrasts with nutrient-limited surface waters where other work has suggested hydrocarbon-induced microbial growth to have been minimal. Our results suggest the need for better monitoring of changes in nutrients as well as study of nutrient recycling in similar future hydrocarbon releases.
影响因子：
56.9
作者：
Hazen, Terry C.;Dubinsky, Eric A.;Mason, Olivia U.
通讯作者：
Mason, Olivia U.
影响因子：
6.7
作者：
Graham, William M.;Condon, Robert H.;Hernandez, Frank J., Jr.
通讯作者：
Hernandez, Frank J., Jr.