期刊
SCIENCE
卷 330, 期 6001, 页码 208-211出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1196830
关键词
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资金
- National Science Foundation [OCE 1042097, OCE 0961725, OCE 1042650, OCE 0849246]
- Department of Energy [DE-NT0005667]
- Direct For Education and Human Resources [0929836] Funding Source: National Science Foundation
- Directorate For Geosciences [0961725] Funding Source: National Science Foundation
- Division Of Human Resource Development [0929836] Funding Source: National Science Foundation
- Division Of Ocean Sciences [0961725] Funding Source: National Science Foundation
- Division Of Ocean Sciences
- Directorate For Geosciences [0849246] Funding Source: National Science Foundation
- Division Of Undergraduate Education
- Direct For Education and Human Resources [0806926] Funding Source: National Science Foundation
The Deepwater Horizon event resulted in suspension of oil in the Gulf of Mexico water column because the leakage occurred at great depth. The distribution and fate of other abundant hydrocarbon constituents, such as natural gases, are also important in determining the impact of the leakage but are not yet well understood. From 11 to 21 June 2010, we investigated dissolved hydrocarbon gases at depth using chemical and isotopic surveys and on-site biodegradation studies. Propane and ethane were the primary drivers of microbial respiration, accounting for up to 70% of the observed oxygen depletion in fresh plumes. Propane and ethane trapped in the deep water may therefore promote rapid hydrocarbon respiration by low-diversity bacterial blooms, priming bacterial populations for degradation of other hydrocarbons in the aging plume.
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