The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C)
Abstract The microbial degradation of petroleum hydrocarbons at low temperatures was investigated in subarctic deep-sea sediments in the Faroe Shetland Channel (FSC). The effect of the marine oil dispersant, Superdispersant 25 on hydrocarbon degradation was also examined. Sediments collected at 500...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Nature Portfolio
2017
|
Subjects: | |
Online Access: | https://doi.org/10.1038/s41598-017-02475-9 https://doaj.org/article/bb9da382044a4bd4a63d906abd97994a |
id |
ftdoajarticles:oai:doaj.org/article:bb9da382044a4bd4a63d906abd97994a |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:bb9da382044a4bd4a63d906abd97994a 2023-05-15T18:28:14+02:00 The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C) Robert M. W. Ferguson Evangelia Gontikaki James A. Anderson Ursula Witte 2017-05-01T00:00:00Z https://doi.org/10.1038/s41598-017-02475-9 https://doaj.org/article/bb9da382044a4bd4a63d906abd97994a EN eng Nature Portfolio https://doi.org/10.1038/s41598-017-02475-9 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-017-02475-9 2045-2322 https://doaj.org/article/bb9da382044a4bd4a63d906abd97994a Scientific Reports, Vol 7, Iss 1, Pp 1-13 (2017) Medicine R Science Q article 2017 ftdoajarticles https://doi.org/10.1038/s41598-017-02475-9 2022-12-31T07:12:03Z Abstract The microbial degradation of petroleum hydrocarbons at low temperatures was investigated in subarctic deep-sea sediments in the Faroe Shetland Channel (FSC). The effect of the marine oil dispersant, Superdispersant 25 on hydrocarbon degradation was also examined. Sediments collected at 500 and 1000 m depth were spiked with a model oil containing 20 hydrocarbons and incubated at ambient temperature (5 and 0 °C, respectively) with and without marine dispersant. Treatment of sediments with hydrocarbons resulted in the enrichment of Gammaproteobacteria, and specifically the genera Pseudoalteromonas, Pseudomonas, Halomonas, and Cobetia. Hydrocarbon degradation was faster at 5 °C (500 m) with 65–89% of each component degraded after 50 days compared to 0–47% degradation at 0 °C (1000 m), where the aromatic hydrocarbons fluoranthene, anthracene, and Dibenzothiophene showed no degradation. Dispersant significantly increased the rate of degradation at 1000 m, but had no effect at 500 m. There was no statistically significant effect of Superdispersant 25 on the bacterial community structure at either station. These results show that the indigenous bacterial community in the FSC has the capacity to mitigate some of the effects of a potential oil spill, however, the effect of dispersant is ambiguous and further research is needed to understand the implications of its use. Article in Journal/Newspaper Subarctic Directory of Open Access Journals: DOAJ Articles Scientific Reports 7 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Robert M. W. Ferguson Evangelia Gontikaki James A. Anderson Ursula Witte The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C) |
topic_facet |
Medicine R Science Q |
description |
Abstract The microbial degradation of petroleum hydrocarbons at low temperatures was investigated in subarctic deep-sea sediments in the Faroe Shetland Channel (FSC). The effect of the marine oil dispersant, Superdispersant 25 on hydrocarbon degradation was also examined. Sediments collected at 500 and 1000 m depth were spiked with a model oil containing 20 hydrocarbons and incubated at ambient temperature (5 and 0 °C, respectively) with and without marine dispersant. Treatment of sediments with hydrocarbons resulted in the enrichment of Gammaproteobacteria, and specifically the genera Pseudoalteromonas, Pseudomonas, Halomonas, and Cobetia. Hydrocarbon degradation was faster at 5 °C (500 m) with 65–89% of each component degraded after 50 days compared to 0–47% degradation at 0 °C (1000 m), where the aromatic hydrocarbons fluoranthene, anthracene, and Dibenzothiophene showed no degradation. Dispersant significantly increased the rate of degradation at 1000 m, but had no effect at 500 m. There was no statistically significant effect of Superdispersant 25 on the bacterial community structure at either station. These results show that the indigenous bacterial community in the FSC has the capacity to mitigate some of the effects of a potential oil spill, however, the effect of dispersant is ambiguous and further research is needed to understand the implications of its use. |
format |
Article in Journal/Newspaper |
author |
Robert M. W. Ferguson Evangelia Gontikaki James A. Anderson Ursula Witte |
author_facet |
Robert M. W. Ferguson Evangelia Gontikaki James A. Anderson Ursula Witte |
author_sort |
Robert M. W. Ferguson |
title |
The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C) |
title_short |
The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C) |
title_full |
The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C) |
title_fullStr |
The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C) |
title_full_unstemmed |
The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C) |
title_sort |
variable influence of dispersant on degradation of oil hydrocarbons in subarctic deep-sea sediments at low temperatures (0–5 °c) |
publisher |
Nature Portfolio |
publishDate |
2017 |
url |
https://doi.org/10.1038/s41598-017-02475-9 https://doaj.org/article/bb9da382044a4bd4a63d906abd97994a |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Scientific Reports, Vol 7, Iss 1, Pp 1-13 (2017) |
op_relation |
https://doi.org/10.1038/s41598-017-02475-9 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-017-02475-9 2045-2322 https://doaj.org/article/bb9da382044a4bd4a63d906abd97994a |
op_doi |
https://doi.org/10.1038/s41598-017-02475-9 |
container_title |
Scientific Reports |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766210628042620928 |