Biodegradation of Crude Oil and Corexit 9500 in Arctic Seawater.

ABSTRACT: The need to understand the biodegradation of oil and chemical dispersants in Arctic marine environments is increasing alongside growth in oil exploration and transport in the region. We chemically quantified biodegradation and abiotic losses of crude oil and Corexit 9500, when present separately, in incubations of Arctic seawater and identified microorganisms potentially involved in biodegradation of these substrates based on shifts in bacterial community structure (16S rRNA genes) and abundance of biodegradation genes (GeoChip 5.0 microarray). Incubations were performed over 28-day time courses using surface seawater collected from near-shore and offshore locations in the Chukchi Sea. Within 28 days, the indigenous microbial community biodegraded 36% (k = 0.010 day^-1) an

SUBMITTER: McFarlin KM 

PROVIDER: S-EPMC6096335 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature