Influence of crude oil on changes of bacterial communities in Arctic sea-ice.
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The danger of a petroleum hydrocarbon spillage in the polar, ice-covered regions is increasing due to oil exploration in Arctic offshore areas and a growing interest in using the Northern Sea Route (NSR) as an alternative transportation route for Arctic oil and gas. However, little is known about the potential impact of accidental oil spills on this environment. We investigated the impact of crude oil on microbial community composition in six different Arctic sea-ice samples incubated with crude oil at 1 degrees C in microcosms for one year. Alterations in the composition of bacterial communities were analyzed with the culture-independent molecular methods DGGE (denaturing gradient gel electrophoresis) and FISH (fluorescence in situ hybridization). DGGE, FISH and cultivation methods revealed a strong shift in community composition toward the gamma-proteobacteria in sea-ice and melt pool samples incubated with crude oil. Marinobacter spp., Shewanella spp. and Pseudomonas spp. were the p.....
JournalFEMS Microbiology Ecology
Sustainable Development Goals (SDG)14.a
Spatial CoverageArctic Ocean
CitationGerdes, B., Brinkmeyer, R., Dieckmann, G. and Helmke, E. (2005) Influence of crude oil on changes of bacterial communities in Arctic sea-ice. FEMS Microbiology Ecology, 53:515893, pp.129–139. DOI: https://doi.org/10.1016/j.femsec.2004.11.010
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