Taylor & Francis Group
Browse
gbif_a_1673377_sm0016.pdf (283.05 kB)

Marine biofilm bacterial community response and carbon steel loss following Deepwater Horizon spill contaminant exposure

Download (283.05 kB)
journal contribution
posted on 2019-10-11, 09:52 authored by Rachel L. Mugge, Jason S. Lee, Treva T. Brown, Leila J. Hamdan

Steel marine structures provide foci of biodiversity when they develop into artificial reefs. Development begins with deposition of a biofilm. The effects of contaminants from oil spills on biofilm microbiomes, microbially-induced corrosion (MIC) and metal loss may impact preservation of marine metal structures. A microcosm experiment exposed biofilms on carbon steel disks (CSDs) to crude oil, dispersant, and dispersed oil to address their impacts on bacterial composition and metal loss and pitting. Biofilm diversity increased over time in all exposures. Community composition in dispersant and dispersed oil treatments deviated from the controls for the duration of a 12-week experiment. As biofilms matured, Pseudomonadaceae increased while Rhodobacteraceae decreased in abundance in dispersed oil treatments compared to the controls and dispersant treatments. Greatest mass loss and deepest pitting on CSDs were observed in dispersed oil treatments, suggesting impacts manifest as a consequence of increased MIC potential on carbon steel.

Funding

Funding was provided by the US Department of the Interior, Bureau of Ocean Energy Management, Environmental Studies Program under Cooperative Agreement number M13AC00015 and Interagency Agreement number M13PG00020.

History

Usage metrics

    Biofouling: The Journal of Bioadhesion and Biofilm Research

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC