Bacterial Community Response in Deep Faroe-Shetland Channel Sediments Following Hydrocarbon Entrainment With and Without Dispersant Addition

Calderon, Luis J Perez; Potts, Lloyd D.; Gontikaki, Evangelia; Gubry‐Rangin, Cécile; Cornulier, Thomas; Gallego, Alejandro; Anderson, James A.; Witte, Ursula

doi:10.3389/fmars.2018.00159

Cited by 14 publications

(18 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bacterial taxa that responded positively to high pressure included the γ‐proteobacteria Pseudomonas and Colwellia , as well as several Bacteroidetes. Pseudomonas is often associated with the early stages of oil biodegradation in both coastal and deepwater ecosystems (Dubinsky et al, ; Kostka et al, ; Krolicka, Boccadoro, Nilsen, & Baussant, ; Perez Calderon et al, ) but was found in higher relative abundance in the oil‐contaminated treatment even after 6 months of incubation in this study. The presence of Pseudomonas has also been reported after one‐year incubations of melted Arctic sea ice contaminated with oil (Gerdes et al, ).…”

Section: Discussionmentioning

confidence: 50%

“…Type strain Fusibacter paucivorans has been isolated from an oil well (Ravot et al, ) and Fusibacter bizertensis from a kerosene tank (Smii et al, ). Fusibacter has also been detected in hydrocarbon exposed 1,000‐m‐deep sediments from the FSC (Perez Calderon et al, ), which supports its ability to survive in high P environments.…”

Section: Discussionmentioning

confidence: 75%

“…Colwellia also increased in relative abundance at 30 MPa but was associated with control incubations while the effect of temperature was unclear; Colwellia increased at 20°C, but unclassified OTUs of the Colwelliaceae family increased in relative abundance at 5°C. Colwellia was identified as one of the key responders in the DwH oil spill (Mason, et al, , Mason, et al, ); however, the presence of this genus in both oil‐contaminated and uncontaminated natural bacterial communities reflects its heterotrophic nature and variable contribution to organic matter degradation (Ferguson et al, ; Krolicka et al, ; Perez Calderon et al, ). Within the Bacteroidetes phylum, the genera Aequorivita , Flavobacterium, and Tenacibaculum were found in higher relative abundance at 30 MPa.…”

Section: Discussionmentioning

confidence: 99%

“…Background sediment samples were processed in triplicate to determine particle size distribution and carbon content. The procedures for particle size distribution and carbon content measurements have been described elsewhere (Perez Calderon et al, ). The sediment was silt dominated (83.0% ± 2.2%) and had low organic carbon content (0.47% ± 0.23%) (Supporting Information Table S2).…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Pressure and temperature effects on deep‐sea hydrocarbon‐degrading microbial communities in subarctic sediments

et al. 2018

Self Cite

View full text Add to dashboard Cite

The Hatton–Rockall Basin (North‐East Atlantic) is an area with potential for deep‐sea (2,900 m) hydrocarbon exploration. Following the Deepwater Horizon oil spill, many investigations into the responses of sediment microbial communities to oil pollution have been undertaken. However, hydrostatic pressure is a parameter that is often omitted due to the technical difficulties associated with conducting experiments at high pressure (>10 MPa). In this study, sediments from 2,900 m in the Hatton–Rockall Basin, following a one‐week decompression period in a temperature‐controlled room at 5°C, were incubated in factorial combinations of 0.1 and 30 MPa, 5 and 20°C, and contamination with a hydrocarbon mixture or uncontaminated controls to evaluate the effect of these environmental variables on the bacterial community composition. Our results revealed varying effects of pressure, temperature, and oil contamination on the composition of the bacterial community within the sediment. Temperature was the strongest determinant of differences in the bacterial community structure between samples followed by pressure. Oil contamination did not exert a strong change in the sediment bacterial community structure when pressure and temperature conditions were held at in situ levels (30 MPa and 5°C). The γ‐proteobacteria Pseudomonas and Colwellia, and several Bacteroidetes dominated communities at 30 MPa. In contrast, hydrocarbon degraders such as Halomonas , Alcanivorax, and Marinobacter decreased in relative abundance at the same pressure. This study highlights the importance of considering hydrostatic pressure in ex situ investigations into hydrocarbon‐degrading deepwater microbial communities.

show abstract

Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 75%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Pressure and temperature effects on deep‐sea hydrocarbon‐degrading microbial communities in subarctic sediments

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…; Perez Calderon et al . ). The genus Marinomonas was detected in the FSC500 clone library only and was most abundant among Oceanospirillales at that station.…”

Section: Discussionmentioning

confidence: 97%

Hydrocarbon-degrading bacteria in deep-water subarctic sediments (Faroe-Shetland Channel)

et al. 2018

View full text Add to dashboard Cite

show abstract

Advective pore-water transport of hydrocarbons in North East Scotland coastal sands

Calderon

Vossen

Potts

et al. 2018

Environ Sci Pollut Res

View full text Add to dashboard Cite

Oil spills in the marine environment can cause ecosystem-level impacts. Dispersant application as an oil spill response measure leads to the widespread distribution of hydrocarbons in the water column and marine sediments. The North Sea is an area of intense hydrocarbon production and is at risk of oil spills, which are of concern to its benthic ecosystem due to its sediments' high permeability. Here, entrainment of hydrocarbons via pore-water advection into permeable North Sea sands and the associated effect of Superdispersant-25, a commercial oil dispersant, were evaluated in a laboratory. Centrally stirred chambers that induce advective pore-water fluxes in sediments were filled with sediment, seawater and mixtures of oil and Superdispersant-25. Dispersant application had contrasting effects on hydrocarbon interactions with sediment: (1) it reduced accumulation of hydrocarbons in surface sediments and (2) facilitated the entrainment of hydrocarbons up to 8 cm deep into sediments by increasing hydrocarbon solubility in seawater and its subsequent washout or pumping into sediment by pore-water movement. Results here show that dispersant application can have counter-intuitive effects on hydrocarbon interactions with marine sediments and highlight the need for further research in this area to make better informed decision in an oil spill response scenario.

show abstract

Bacterial Community Response in Deep Faroe-Shetland Channel Sediments Following Hydrocarbon Entrainment With and Without Dispersant Addition

Cited by 14 publications

References 100 publications

Pressure and temperature effects on deep‐sea hydrocarbon‐degrading microbial communities in subarctic sediments

Pressure and temperature effects on deep‐sea hydrocarbon‐degrading microbial communities in subarctic sediments

Hydrocarbon-degrading bacteria in deep-water subarctic sediments (Faroe-Shetland Channel)

Advective pore-water transport of hydrocarbons in North East Scotland coastal sands

Contact Info

Product

Resources

About