Fate and effects of dispersed crude oil under icy conditions simulated in mesocosms

Siron, Robert; Pelletier, Émilien; Delille, Daniel; Roy, Sylvie

doi:10.1016/0141-1136(93)90098-k

Cited by 45 publications

(31 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among oil components, isoprenoid alkanes, such as pristane and phytane, are more stable and can serve at the corresponding boiling point as references to assess the degradation of the normal alkanes. Thus, the nC17/pristane and nC18/phytane are used as measures of microbial degradation of the normal alkanes 26 . After 15 days, no biodegradation occurred in control and experimental sediments (data not shown).…”

Section: Resultsmentioning

confidence: 99%

The in vitro influence of the burrowing polychaete Nereis diversicolor on the fate of petroleum hydrocarbons in marine sediments

Gilbert¹,

Rivet²,

Bertrand³

1994

Chemosphere

View full text Add to dashboard Cite

International audienceThe in vitro fate of the saturated hydrocarbon fraction (SF) of Arabian Light crude oil has been studied in PVC cores filled with a coastal marine sediment defaunated by sieving. Experiments were conducted in absence or presence of polychaetes Nereis diversicolor. The luminophore tracer technique was used to quantify the mixing of sediment by worms. Presence of crude oil reduced the building of burrows by polychaetes. This work demonstrates the ability of infaunal organisms to stimulate both downard and outward transfers of hydrocarbons from sediment reservoirs. In non-bioturbated sediment hydrocarbons were confined to the sediment surface. Introduction of polychaetes in sediment (1) induced the burying of SF in sediment (2.5 % and 13.5 % of the initial surface input after 15 and 45 days, respectively); (2) enhanced the exportation of SF in the overlying water (plus 59 % and 23.5 % compared to defaunated control sediment after 15 and 45 days, respectively). Buried hydrocarbons were submitted to biodegradation, from 2 cm to 10 cm depth in polychaete burrows, after 45 days

show abstract

Section: Resultsmentioning

confidence: 99%

The in vitro influence of the burrowing polychaete Nereis diversicolor on the fate of petroleum hydrocarbons in marine sediments

Gilbert¹,

Rivet²,

Bertrand³

1994

Chemosphere

View full text Add to dashboard Cite

show abstract

“…Limited oil biodegradation was found under a winter ice cover in the St. Lawrence River, a temperate marine 27 system, and was attributed to the low productivity of the microbial communities (Siron et al 1993).…”

Section: Factors Governing Hydrocarbon Degradation In Ice-covered Arcmentioning

confidence: 99%

“…2). Toxic stress on bacteria after oil addition (e.g., Siron et al 1993) may have impeded such stimulation in the oil-treated microcosms.…”

Section: Microbial Response To Oil Exposurementioning

confidence: 99%

Hydrocarbon biodegradation by Arctic sea-ice and sub-ice microbial communities during microcosm experiments, Northwest Passage (Nunavut, Canada)

Garneau

Michel

Meisterhans

et al. 2016

FEMS Microbiology Ecology

View full text Add to dashboard Cite

Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=7c0aa52f-edde-4536-bc0b-f3df34a692ee http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=7c0aa52f-edde-4536-bc0b-f3df34a692ee AbstractThe increasing accessibility to navigation and offshore oil exploration brings risks of hydrocarbon releases in Arctic waters. Bioremediation of hydrocarbons is a promising mitigation strategy but challenges remain, particularly due to low microbial metabolic rates in cold, ice-covered seas.Hydrocarbon degradation potential of ice-associated microbes collected from the Northwest Passage was investigated. Microcosm incubations were run for 15 days at -1.7°C with and without oil to determine the effects of hydrocarbon exposure on microbial abundance, diversity and activity, and to estimate component-specific hydrocarbon loss. Diversity was assessed with automated ribosomal intergenic spacer analysis and ion torrent 16S rRNA gene sequencing. Bacterial activity was measured by 3 H-leucine uptake rates. After incubation, sub-ice and sea-ice communities degraded 94% and 48% of the initial hydrocarbons, respectively. Hydrocarbon exposure changed the composition of sea-ice and sub-ice communities; in sea-ice microcosms, Bacteroidetes (mainly Polaribacter) dominated whereas in sub-ice microcosms, Epsilonproteobacteria contribution increased, but that of Alphaproteobacteria and Bacteroidetes decreased. Sequencing data revealed a decline in diversity and increases in Colwellia and Moritella in oil-treated microcosms. Low concentration of dissolved organic matter (DOM) in sub-ice seawater may explain higher hydrocarbon degradation when compared to sea ice, where DOM was abundant and composed of labile exopolysaccharides.

show abstract

“…An increase in the density and proportion of oil degraders was noted in 2 d providing evidence of the capacity of indigenous organisms to attack oil. Nevertheless chemical change was very slight (Siron et al 1993). It is reasonable to assume that the limitlng factor was the temperature characteristics of the enzymes which carry out the initial oxidative steps.…”

Section: Bioremediationmentioning

confidence: 99%

Some environmental aspects of marine hydrocarbon bacteriology

Gd¹

1995

Aquat. Microb. Ecol.

View full text Add to dashboard Cite

This paper reviews some of the field aspects of hydrocarbon bacteriology in the marine environment. The first section recapitulates the current position with regard to the input of polluting oil into the sea and the main environmental factors which govern the rate of oil breakdown. The second deals with the 1991 oil spill during the Gulf War and what is known about the bacteriology of that area, together with some recent data from Japan. Thirdly a critical review of the theory and practise of bioremediation as applied to contaminated beaches in several parts of the world leads to the conclusion that there are still a lot of unknown variables that must be better understood before the method can be of widespread use. Finally a short review of gaseous hydrocarbons in the sea suggests that methane from petrogenic or biogenic sources is of both practical and theoretical interest and importance for the future.

show abstract

Fate and effects of dispersed crude oil under icy conditions simulated in mesocosms

Cited by 45 publications

References 26 publications

The in vitro influence of the burrowing polychaete Nereis diversicolor on the fate of petroleum hydrocarbons in marine sediments

The in vitro influence of the burrowing polychaete Nereis diversicolor on the fate of petroleum hydrocarbons in marine sediments

Hydrocarbon biodegradation by Arctic sea-ice and sub-ice microbial communities during microcosm experiments, Northwest Passage (Nunavut, Canada)

Some environmental aspects of marine hydrocarbon bacteriology

Contact Info

Product

Resources

About