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Marietou A, Schmidt JS, Rasmussen MR, Scoma A, Rysgaard S, Vergeynst L. The effect of hydrostatic pressure on the activity and community composition of hydrocarbon-degrading bacteria in Arctic seawater. Appl Environ Microbiol 2023; 89:e0098723. [PMID: 37943057 PMCID: PMC10686064 DOI: 10.1128/aem.00987-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 10/05/2023] [Indexed: 11/10/2023] Open
Abstract
IMPORTANCE Increased ship traffic in the Arctic region raises the risk of oil spills. With an average sea depth of 1,000 m, there is a growing concern over the potential release of oil sinking in the form of marine oil snow into deep Arctic waters. At increasing depth, the oil-degrading community is exposed to increasing hydrostatic pressure, which can reduce microbial activity. However, microbes thriving in polar regions may adapt to low temperature by modulation of membrane fluidity, which is also a well-known adaptation to high hydrostatic pressure. At mild hydrostatic pressures up to 8-12 MPa, we did not observe an altered microbial activity or community composition, whereas comparable studies using deep-sea or sub-Arctic microbial communities with in situ temperatures of 4-5°C showed pressure-induced effects at 10-15 MPa. Our results suggest that the psychrophilic nature of the underwater microbial communities in the Arctic may be featured by specific traits that enhance their fitness at increasing hydrostatic pressure.
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Affiliation(s)
- Angeliki Marietou
- Department of Biology, Section for Microbiology, Aarhus University, Aarhus, Denmark
- Department of Biological and Chemical Engineering, Aarhus University, Aarhus, Denmark
| | | | - Martin R. Rasmussen
- Department of Biology, Section for Microbiology, Aarhus University, Aarhus, Denmark
| | - Alberto Scoma
- Department of Biology, Section for Microbiology, Aarhus University, Aarhus, Denmark
- Department of Biological and Chemical Engineering, Aarhus University, Aarhus, Denmark
| | - Søren Rysgaard
- Arctic Research Centre, Department of Biology, Aarhus University, Aarhus, Denmark
| | - Leendert Vergeynst
- Department of Biological and Chemical Engineering, Aarhus University, Aarhus, Denmark
- Arctic Research Centre, Department of Biology, Aarhus University, Aarhus, Denmark
- Centre for Water Technology (WATEC), Aarhus University, Aarhus, Denmark
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2
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Techtmann SM, Santo Domingo J, Conmy R, Barron M. Impacts of dispersants on microbial communities and ecological systems. Appl Microbiol Biotechnol 2023; 107:1095-1106. [PMID: 36648524 PMCID: PMC10111227 DOI: 10.1007/s00253-022-12332-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 01/18/2023]
Abstract
Accidental oil spills can result in catastrophic ecological insults and therefore require rapid intervention to mitigate the potential impacts to aquatic ecosystems. One of the largest oil spills, known as the Deepwater Horizon oil spill, occurred in the Spring of 2010 near the coast of Louisiana (USA) due to an explosion during oil drilling activities. Millions of gallons of oil were released into the Gulf of Mexico, impacting thousands of ocean miles and coastal areas linked to the gulf. Among the actions taken during the remediation efforts was the unprecedented large use of Corexit dispersants, including at the subsurface to prevent oil from reaching the surface. While there is evidence that dispersants can accelerate the biodegradation of oil, reports on their potential toxicity to aquatic biota and to microbial functions have also been documented. In this review, we will examine the most recent literature on the impact of dispersants on microbial communities implicated in oil degradation and overall ecological networks. The primary focus will be on studies using Corexit but other dispersants will be discussed if data are available. We will share the literature gaps identified and discuss future work that is needed to reconcile some of the discrepancies found on the effectiveness of dispersants on oil degradation and their potential toxicity. KEY POINTS: • Chemical dispersants have been applied as a chemical response measure for oil spills. • The effects of chemical dispersants on microbial communities have been the subject of substantial research. • This work seeks to review recent work on the impact of chemical dispersants on oil biodegradation, microbial communities, and ecosystems.
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Affiliation(s)
- Stephen M Techtmann
- Department of Biological Sciences, Michigan Technological University, Houghton, MI, USA.
| | - Jorge Santo Domingo
- Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, OH, USA.
| | - Robyn Conmy
- Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, OH, USA
| | - Mace Barron
- Office of Research and Development, U.S. Environmental Protection Agency, Gulf Breeze, FL, USA
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3
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Sui W, Hu H, Lin Y, Yi P, Miao L, Zhang H, He H, Li G. Mussel-inspired pH-responsive copper foam with switchable wettability for bidirectional oil-water separation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Jaouadi T, Hajji M, Kasmi M, Kallel A, Chatti A, Hamzaoui H, Mnif A, Tizaoui C, Trabelsi I. Aloe sp. leaf gel and water glass for municipal wastewater sludge treatment and odour removal. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:479-490. [PMID: 32385201 DOI: 10.2166/wst.2020.123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Aloe gel (Alg), which is a natural extract from the Aloe sp. plant, was evaluated in this study for its potential use as a bioflocculant to treat urban wastewater sewage sludge. The gel was used alone and combined with water glass (WG) under controlled conditions in laboratory experiments. Alg was found effective to settle the flocculated sludge rapidly and remove distinctive unpleasant odours of the sludge as highlighted by gas chromatography-mass spectrometry (GC/MS) analysis. Furthermore, Alg was pH tolerant and had no effect in changing the pH of the wastewater. The optimum dose of Alg was 3% at which a sludge volume index (SVI) of 45.4 mL/g was obtained within 30 min settling time. To enhance the treatment performances of Alg, WG was also evaluated as an alkali agent to further reduce the chemical oxygen demand (COD) and ammonia (NH4-N) in the wastewater. At equal doses of 3% of WG and Alg each, the combined treatment outcomes showed high turbidity and NH4-N removals of 83 and 89%, respectively, but the overall COD removal was at best 25%. The settling rate of treated sludge with combined Alg/WG was very rapid giving an SVI of 25.4 mL/g within only 5 min.
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Affiliation(s)
- Thameur Jaouadi
- Office National de l'Assainissement (ONAS), Tunis, Tunisia; Laboratoire de Traitement et Valorisation des Rejets Hydriques (LTVRH), CERTE, Technopark of Borj-Cedria, 8020, Soliman, Tunisia and University of Carthage, Avenue de la Republique, P.O. Box 77, 1054 Amilcar, Tunis, Tunisia E-mail:
| | - Mounir Hajji
- Laboratoire de Valorisation des matériaux utiles, Centre national des sciences et recherche de matériaux University of Carthage, Tunis, Tunisia
| | - Mariam Kasmi
- Laboratoire de Traitement et Valorisation des Rejets Hydriques (LTVRH), CERTE, Technopark of Borj-Cedria, 8020, Soliman, Tunisia and University of Carthage, Avenue de la Republique, P.O. Box 77, 1054 Amilcar, Tunis, Tunisia E-mail:
| | - Amjad Kallel
- Laboratoire Eau-Energie-Environnement (3E), Sfax National School of Engineering, University of Sfax, P.O. Box 1173, 3038, Sfax, Tunisia
| | - Abdelwaheb Chatti
- Laboratoire de Traitement et Valorisation des Rejets Hydriques (LTVRH), CERTE, Technopark of Borj-Cedria, 8020, Soliman, Tunisia and University of Carthage, Avenue de la Republique, P.O. Box 77, 1054 Amilcar, Tunis, Tunisia E-mail:
| | - Hichem Hamzaoui
- Laboratoire de Valorisation des matériaux utiles, Centre national des sciences et recherche de matériaux University of Carthage, Tunis, Tunisia
| | - Adel Mnif
- Laboratoire de Valorisation des matériaux utiles, Centre national des sciences et recherche de matériaux University of Carthage, Tunis, Tunisia
| | - Chedly Tizaoui
- College of Engineering, Bay Campus, Swansea University, Swansea SA1 8EN, UK
| | - Ismail Trabelsi
- Laboratoire de Traitement et Valorisation des Rejets Hydriques (LTVRH), CERTE, Technopark of Borj-Cedria, 8020, Soliman, Tunisia and University of Carthage, Avenue de la Republique, P.O. Box 77, 1054 Amilcar, Tunis, Tunisia E-mail:
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Rohal M, Barrera N, Van Eenennaam JS, Foekema EM, Montagna PA, Murk AJ, Pryor M, Romero IC. The effects of experimental oil-contaminated marine snow on meiofauna in a microcosm. MARINE POLLUTION BULLETIN 2020; 150:110656. [PMID: 31678679 DOI: 10.1016/j.marpolbul.2019.110656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 10/04/2019] [Accepted: 10/08/2019] [Indexed: 06/10/2023]
Abstract
During an oil spill, a marine oil snow sedimentation and flocculent accumulation (MOSSFA) event can transport oil residue to the seafloor. Microcosm experiments were used to test the effects of oil residues on meiofaunal abundance and the nematode:copepod ratio under different oil concentrations and in the presence and absence of marine snow. Total meiofaunal abundance was 1.7 times higher in the presence of snow regardless of oil concentration. The nematode:copepod ratio was 13.9 times lower in the snow treatment regardless of the oil concentration. Copepod abundance was 24.3 times higher in marine snow treatments and 4.3 times higher at the highest oil concentration. Nematode abundance was 1.7 times lower at the highest oil concentration. The result of the experiment was an enrichment effect. The lack of a toxic response in the experiments may be attributable to relatively low oil concentrations, weathering processes, and the absence of chemically dispersed oil.
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Affiliation(s)
- Melissa Rohal
- Texas A&M University - Corpus Christi, Harte Research Institute for Gulf of Mexico Studies, Unit 5869, 6300 Ocean Drive, Corpus Christi, TX, 78412, USA.
| | - Noe Barrera
- Texas A&M University - Corpus Christi, Harte Research Institute for Gulf of Mexico Studies, Unit 5869, 6300 Ocean Drive, Corpus Christi, TX, 78412, USA
| | - Justine S Van Eenennaam
- Wageningen University & Research, Marine Animal Ecology Group, P.O. Box 338, 6700 AH, Wageningen, the Netherlands
| | - Edwin M Foekema
- Wageningen University & Research, Marine Animal Ecology Group, P.O. Box 338, 6700 AH, Wageningen, the Netherlands; Wageningen University and Research, Wageningen Marine Research, P.O. Box 57, 1780 AB, Den Helder, the Netherlands
| | - Paul A Montagna
- Texas A&M University - Corpus Christi, Harte Research Institute for Gulf of Mexico Studies, Unit 5869, 6300 Ocean Drive, Corpus Christi, TX, 78412, USA
| | - Albertinka J Murk
- Wageningen University & Research, Marine Animal Ecology Group, P.O. Box 338, 6700 AH, Wageningen, the Netherlands
| | - Marissa Pryor
- Texas A&M University - Corpus Christi, Harte Research Institute for Gulf of Mexico Studies, Unit 5869, 6300 Ocean Drive, Corpus Christi, TX, 78412, USA
| | - Isabel C Romero
- University of South Florida, College of Marine Science, 140 7th Ave S, St Petersburg, FL, 33701, USA
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García-Cruz NU, Valdivia-Rivera S, Narciso-Ortiz L, García-Maldonado JQ, Uribe-Flores MM, Aguirre-Macedo ML, Lizardi-Jiménez MA. Diesel uptake by an indigenous microbial consortium isolated from sediments of the Southern Gulf of Mexico: Emulsion characterisation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 250:849-855. [PMID: 31085470 DOI: 10.1016/j.envpol.2019.04.109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/09/2019] [Accepted: 04/22/2019] [Indexed: 05/23/2023]
Abstract
In this study a microbial consortium, dominated by members of the genera Marinobacter and Alcanivorax (Gammaproteobacteria) isolated from marine sediments of Southern Gulf of Mexico, was assessed to grow in a bubble column bioreactor using 13 g L-1 of diesel (aliphatic and aromatic hydrocarbons mix including nonane and hexadecane) as the sole carbon source. The consortium was able to produce 3.3 g L-1 of biomass, measured as suspended solids. Microbial growth was detectable, even substrate depletion, after 8 days of cultivation. The emulsifier activity and its influence on the droplet size were also evaluated: it was observed that droplet diameter decreases as emulsifier activity increases. The bubble column bioreactor system proposed in this research could be used as a biotechnological process for the remediation of a contaminated body in important petrochemical regions, for example, Veracruz, México, where some points of sea and fresh-water bodies were analysed to find nonane and hexadecane in all sample water. It is important due to a lack of information, regarding hydrocarbon pollution in this port area, is filled.
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Affiliation(s)
- N U García-Cruz
- Centro de Investigación y de Estudios Avanzados-Mérida, Antigua carretera a Progreso Km 6, Cordemex, Loma Bonita Xcumpich, C.P. 97310, Mérida, Yucatán, Mexico
| | - S Valdivia-Rivera
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. Unidad Sureste, Tableje Catastral 31264 Km 5.5, Carretera Sierra Papacal-Chuburna Puerto, Parque Científico Tecnológico de Yucatán, C.P. 97302, Mérida, Yucatán, Mexico
| | - L Narciso-Ortiz
- Instituto Tecnológico Superior de Tierra Blanca, Avenida Veracruz Sin Número Esquina Héroes de Puebla, Colonia Pemex, C.P. 95180, Tierra Blanca, Veracruz, Mexico
| | - J Q García-Maldonado
- CONACYT- Centro de Investigación y de Estudios Avanzados-Mérida, Antigua carretera a Progreso Km 6, Cordemex, Loma Bonita Xcumpich, C.P. 97310, Mérida, Yucatán, Mexico
| | - M M Uribe-Flores
- Centro de Investigación y de Estudios Avanzados-Mérida, Antigua carretera a Progreso Km 6, Cordemex, Loma Bonita Xcumpich, C.P. 97310, Mérida, Yucatán, Mexico
| | - M L Aguirre-Macedo
- Centro de Investigación y de Estudios Avanzados-Mérida, Antigua carretera a Progreso Km 6, Cordemex, Loma Bonita Xcumpich, C.P. 97310, Mérida, Yucatán, Mexico
| | - M A Lizardi-Jiménez
- CONACYT-Universidad Autónoma de San Luis Potosí, Sierra Leona 550, Lomas Segunda Sección, C.P. 78210, San Luis Potosí, Mexico.
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van Eenennaam JS, Rohal M, Montagna PA, Radović JR, Oldenburg TBP, Romero IC, Murk AJ, Foekema EM. Ecotoxicological benthic impacts of experimental oil-contaminated marine snow deposition. MARINE POLLUTION BULLETIN 2019; 141:164-175. [PMID: 30955722 DOI: 10.1016/j.marpolbul.2019.02.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/24/2019] [Accepted: 02/12/2019] [Indexed: 06/09/2023]
Abstract
Marine Oil Snow Sedimentation and Flocculent Accumulation (MOSSFA) can pose serious threats to the marine benthic ecosystem as it results in a deposition of oil contaminated marine snow on the sediment surface. In a microcosm experiment we investigated the effects of oil in combination with artificial marine snow or kaolin clay on two benthic invertebrate species and benthic meiofauna. The amphipod showed a dose-dependent decrease in survival for both oil-contaminated clay and oil-contaminated marine snow. The gastropod was only affected by the highest concentration of oil-contaminated marine snow and had internal concentrations of PAHs with a similar distribution as oil-contaminated marine snow. Benthic copepods showed higher survival in presence of marine snow. This study revealed that marine snow on the sediment after oil spills affects organisms in a trait-dependent way and that it can be a vector for introducing oil into the food web.
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Affiliation(s)
- Justine S van Eenennaam
- Sub-department of Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Melissa Rohal
- Texas A&M University - Corpus Christi, Harte Research Institute for Gulf of Mexico Studies, Unit 5869, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
| | - Paul A Montagna
- Texas A&M University - Corpus Christi, Harte Research Institute for Gulf of Mexico Studies, Unit 5869, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
| | - Jagoš R Radović
- PRG, Department of Geoscience, University of Calgary, 2500 University Drive NW, T2N 1N4 Calgary, Canada
| | - Thomas B P Oldenburg
- PRG, Department of Geoscience, University of Calgary, 2500 University Drive NW, T2N 1N4 Calgary, Canada
| | - Isabel C Romero
- University of South Florida, College of Marine Science, 140 7th Ave S., St Petersburg, FL 33701, USA
| | - AlberTinka J Murk
- Marine Animal Ecology Group, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Edwin M Foekema
- Marine Animal Ecology Group, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands; Wageningen Marine Research, P.O. Box 57, 1780 AB Den Helder, The Netherlands.
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Theoretical Insight into the Biodegradation of Solitary Oil Microdroplets Moving through a Water Column. Bioengineering (Basel) 2018; 5:bioengineering5010015. [PMID: 29439555 PMCID: PMC5874881 DOI: 10.3390/bioengineering5010015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/05/2018] [Accepted: 02/09/2018] [Indexed: 11/30/2022] Open
Abstract
In the aftermath of oil spills in the sea, clouds of droplets drift into the seawater column and are carried away by sea currents. The fate of the drifting droplets is determined by natural attenuation processes, mainly dissolution into the seawater and biodegradation by oil-degrading microbial communities. Specifically, microbes have developed three fundamental strategies for accessing and assimilating oily substrates. Depending on their affinity for the oily phase and ability to proliferate in multicellular structures, microbes might either attach to the oil surface and directly uptake compounds from the oily phase, or grow suspended in the aqueous phase consuming solubilized oil, or form three-dimensional biofilms over the oil–water interface. In this work, a compound particle model that accounts for all three microbial strategies is developed for the biodegradation of solitary oil microdroplets moving through a water column. Under a set of educated hypotheses, the hydrodynamics and solute transport problems are amenable to analytical solutions and a closed-form correlation is established for the overall dissolution rate as a function of the Thiele modulus, the Biot number and other key parameters. Moreover, two coupled ordinary differential equations are formulated for the evolution of the particle size and used to investigate the impact of the dissolution and biodegradation processes on the droplet shrinking rate.
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van Eenennaam JS, Rahsepar S, Radović JR, Oldenburg TBP, Wonink J, Langenhoff AAM, Murk AJ, Foekema EM. Marine snow increases the adverse effects of oil on benthic invertebrates. MARINE POLLUTION BULLETIN 2018; 126:339-348. [PMID: 29421110 DOI: 10.1016/j.marpolbul.2017.11.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 06/08/2023]
Abstract
After the Deepwater Horizon oil spill, a MOSSFA (Marine Oil Snow Sedimentation and Flocculent Accumulation) event took place, transporting an estimated 14% of total released oil to the sediment, and smothering parts of the benthic ecosystem. This microcosm study describes the effects of oiled artificial marine snow on benthic macroinvertebrates. Corophium volutator survival was reduced by 80% in oil-contaminated snow. Hydrobia ulvae survival was reduced by 40% in oil-contaminated snow, possibly due to consumption of oiled snow. Macoma balthica was sensitive to marine snow, addition of oil slightly decreased survival. This study reveals trait-dependent sensitivity to oil with or without marine snow. The main drivers for organismal response to marine snow and oil are motility, sensitivity to hypoxia and oil toxicity, and feeding habits. Adverse effects of MOSSFA events on benthos will have consequence for the benthic-pelagic habitat and food chain, and should receive more attention in oil spill management.
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Affiliation(s)
- Justine S van Eenennaam
- Sub-department of Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands.
| | - Shokouh Rahsepar
- Sub-department of Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Jagoš R Radović
- PRG, Department of Geoscience, University of Calgary, 2500 University Drive NW, T2N 1N4 Calgary, Canada
| | - Thomas B P Oldenburg
- PRG, Department of Geoscience, University of Calgary, 2500 University Drive NW, T2N 1N4 Calgary, Canada
| | - Jessica Wonink
- Marine Animal Ecology Group, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Alette A M Langenhoff
- Sub-department of Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Albertinka J Murk
- Marine Animal Ecology Group, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Edwin M Foekema
- Marine Animal Ecology Group, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands; Wageningen Marine Research, Wageningen University and Research, P.O. Box 57, 1780 AB Den Helder, The Netherlands
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