NOAA's strategic assessment programme in the Gulf of Mexico

Ehler, Charles N.; Basta, Daniel J.

doi:10.1016/0025-326x(83)90393-4

Marine Pollution Bulletin

1983

DOI: 10.1016/0025-326x(83)90393-4

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NOAA's strategic assessment programme in the Gulf of Mexico

Charles N. Ehler¹,

Daniel J. Basta²

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1990

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“…(1). Chronic oil pollution from petroleum platforms, residual effects of the IXTOC I blowout, and input of hydrocarbons into the environment from other sources, e.g., tanker operations (11,12), coastal refineries (12), and riverborne terrigenous biogenic hydrocarbons (4), are all factors which would be expected to contribute to hydrocarbon contamination of the region and, consequently, to have a significant impact on autochthonous microbial communities.…”

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Hydrocarbon Mineralization in Sediments and Plasmid Incidence in Sediment Bacteria from the Campeche Bank

Leahy

Somerville

Cunningham

et al. 1990

Appl Environ Microbiol

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Rates of degradation of radiolabeled hydrocarbons and incidence of bacterial plasmid DNA were investigated in sediment samples collected from the Campeche Bank, Gulf of Mexico, site of an offshore oil field containing several petroleum platforms. Overall rates of mineralization of ['4C]hexadecane and ['4C]phenanthrene measured for sediments were negligible; <1% of the substrate was converted to CO2 in all cases. Low mineralization rates are ascribed to nutrient limitations and to lack of adaptation by microbial communities to hydrocarbon contaminants. Plasmid frequency data for sediment bacteria similarly showed no correlation with proximity to the oil field, but, instead, showed correlation with water column depth at each sampling site. Significant differences between sites were observed for proportion of isolates carrying single or multiple plasmids and mean number of plasmids per isolate, each of which increased as a function of depth.

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mentioning

confidence: 99%

Hydrocarbon Mineralization in Sediments and Plasmid Incidence in Sediment Bacteria from the Campeche Bank

Leahy

Somerville

Cunningham

et al. 1990

Appl Environ Microbiol

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NOAA's strategic assessment programme in the Gulf of Mexico

Cited by 1 publication

References 0 publications

Hydrocarbon Mineralization in Sediments and Plasmid Incidence in Sediment Bacteria from the Campeche Bank

Hydrocarbon Mineralization in Sediments and Plasmid Incidence in Sediment Bacteria from the Campeche Bank

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