| Téléchargement | - Voir la version finale : Biodegradation of weathered crude oil by microbial communities in solid and melted sea ice (PDF, 2.0 Mio)
|
|---|
| DOI | Trouver le DOI : https://doi.org/10.1016/j.marpolbul.2021.112823 |
|---|
| Auteur | Rechercher : Lofthus, Synnøve1; Rechercher : Bakke, Ingrid; Rechercher : Greer, Charles W.1; Rechercher : Brakstad, Odd Gunnar |
|---|
| Affiliation | - Conseil national de recherches du Canada. Énergie, les mines et l'environnement
|
|---|
| Bailleur de fonds | Rechercher : Equinor ASA; Rechercher : Lundin Norway AS; Rechercher : Aker BP; Rechercher : ConocoPhillips; Rechercher : Norges Forskningsråd |
|---|
| Format | Texte, Article |
|---|
| Description physique | 12 p. |
|---|
| Sujet | dispersed oil; biotransformation; bacterial dynamics; brine; dispersant; hydrocarbon biodegradation; oil pollution; oil-degrading bacteria |
|---|
| Résumé | Oil spilled in the Arctic may drift into ice-covered areas and become trapped until the ice melts. To determine if exposure to oil during freezing may have a priming effect on degradation of the oil, weathered dispersed oil (2-3 mg/L) was frozen into solid ice for 200 days at -10 °C, then melted and incubated for 64 days at 4 °C.
No degradation was measured in oil frozen into ice prior to melting. Both total amount of oil and target compounds were biotransformed by the microbial community from the melted ice. However, oil released from melted ice was degraded at a slower rate than oil incubated in fresh seawater at the same temperature (4 °C), and by a different microbial community. These data suggest negligible biodegradation of oil frozen in sea ice, while oil-degrading bacteria surviving in the ice may contribute to biodegradation when the ice melts. |
|---|
| Date de publication | 2021-08-27 |
|---|
| Maison d’édition | Elsevier |
|---|
| Licence | |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Identificateur | S0025326X21008572 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 2399a213-600d-4baf-96e8-56f2de391dcf |
|---|
| Enregistrement créé | 2022-09-23 |
|---|
| Enregistrement modifié | 2022-09-23 |
|---|
