Browsing SINTEF Open by Author "Netzer, Roman"
Now showing items 1-13 of 13
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Absolute quantification of priority bacteria in aquaculture using digital PCR
Netzer, Roman; Ribicic, Deni; Aas, Marianne; Cavé, Laura; Dhawan, Trisha (Peer reviewed; Journal article, 2021)Modern aquaculture systems are designed for intensive rearing of fish or other species. Both land-based and offshore systems typically contain high loads of biomass and the water quality in these systems is of paramount ... -
Biodegradation of Dispersed Oil in natural Seawaters from Western Greenland and a Norwegian fjord
Brakstad, Odd Gunnar; Davies, Emlyn John; Ribicic, Deni; Winkler, Anika; Brönner, Ute; Netzer, Roman (Journal article; Peer reviewed, 2018-07-25)With increasing oil exploration, production and transportation in the Arctic, predictions of the fate of spilled oil become important, including oil compound biodegradation. The use of chemical dispersants may result in ... -
Comparison of microbial community dynamics induced by distinct crude oil dispersions reveals compositional differences
Ribicic, Deni; Netzer, Roman; Winkler, Anika; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2018-11)To understand the impact of oil contamination on marine microbial communities, numerous studies have been conducted following microbial dynamics after oil spills and concerning the effects of different environmental ... -
Dispersibility and biotransformation of oils with different properties in seawater
Brakstad, Odd Gunnar; Farooq, Umer; Ribicic, Deni; Netzer, Roman (Journal article; Peer reviewed, 2018-01)Dispersants are used to remove oils slicks from sea surfaces and to generate small oil-droplet dispersions, which may result in enhanced biodegradation of the oil. In this study, dispersibility and biodegradation of ... -
Formation and fate of oil-related aggregates (ORAs) in seawater at different temperatures
Henry, Ingrid Annemarie; Netzer, Roman; Davies, Emlyn John; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2020-10)In this study, the formation and fate of oil-related aggregates (ORAs) from chemically dispersed oil in seawater (SW) were investigated at different temperatures (5 °C, 13 °C, 20 °C). Experiments in natural SW alone, and ... -
The influences of phytoplankton species, mineral particles and concentrations of dispersed oil on the formation and fate of marine oil-related aggregates
Henry, Ingrid Annemarie; Netzer, Roman; Davies, Emlyn John; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2020-01-15)The formation and fallout of oil-related marine snow have been associated with interactions between dispersed oil and small marine particles, like phytoplankton and mineral particles. In these studies, the influences of ... -
Microbial communities in seawater from an Arctic and a temperate Norwegian fjord and their potentials for biodegradation of chemically dispersed oil at low seawater temperatures
Ribicic, Deni; Netzer, Roman; Winkler, Anika; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2018-04)Biodegradation of chemically dispersed oil at low temperature (0–2 °C) was compared in natural seawater from Arctic (Svalbard) and a temperate (Norway) fjords. The oil was premixed with a dispersant (Corexit 9500) and ... -
Microbial communities related to biodegradation of dispersed Macondo oil at low seawater temperature with Norwegian coastal seawater
Brakstad, Odd Gunnar; Throne-Holst, Mimmi; Netzer, Roman; Stoeckel, Donald M.; Atlas, Ronald M. (Peer reviewed; Journal article, 2015-07-16)The Deepwater Horizon (DWH) accident in 2010 created a deepwater plume of small oil droplets from a deepwater well in the Mississippi Canyon lease block 252 (‘Macondo oil’). A novel laboratory system was used in the current ... -
Microbial community and metagenome dynamics during biodegradation of dispersed oil reveals potential key-players in cold Norwegian seawater
Ribicic, Deni; Netzer, Roman; Hazen, Terry C.; Techtmann, Stephen M.; Drabløs, Finn; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2018-04)Oil biodegradation as a weathering process has been extensively investigated over the years, especially after the Deepwater Horizon blowout. In this study, we performed microcosm experiments at 5 °C with chemically dispersed ... -
Multiplex droplet digital PCR assay for detection of Flavobacterium psychrophilum and Yersinia ruckeri in Norwegian aquaculture
Lewin, Anna; Haugen, Tone; Netzer, Roman; Tøndervik, Anne; Dahle, Stine Veronica Wiborg; Hageskal, Gunhild (Peer reviewed; Journal article, 2020)We report the development of ddPCR assays for single and simultaneous detection of the bacterial pathogens Flavobacterium psychrophilum and Yersinia ruckeri in water from land-based recirculation aquaculture systems (RAS), ... -
Nedbryting og forråtnelse av døde mus - Effekt av jord, vann og luft (oksygen) på hastigheten av prosessene
Josefsen, Kjell Domaas; Netzer, Roman; Christensen, Stein Olav; Sarno, Antonio (SINTEF rapport;2021:01465 A, Research report, 2022-01-03)Forråtnelsen av musekadavre ble studert for å avklare betydningen av oksygen, vann og jord for dannelsen av likvoks, en substans som kan dannes i lik og bidra til at likets opp-rinnelige form bevares. Dermed brytes ikke ... -
Oil type and temperature dependent biodegradation dynamics. Combining chemical and microbial community data through multivariate analysis.
Ribicic, Deni; McFarlin, Kelly Marie; Netzer, Roman; Brakstad, Odd Gunnar; Winkler, Anika; Throne-Holst, Mimmi; Størseth, Trond Røvik (Journal article; Peer reviewed, 2018-08-07)Background This study investigates a comparative multivariate approach for studying the biodegradation of chemically dispersed oil. The rationale for this approach lies in the inherent complexity of the data and challenges ... -
Petroleum hydrocarbon and microbial community structure successions in marine oil-related aggregates associated with diatoms relevant for Arctic conditions
Netzer, Roman; Henry, Ingrid Annemarie; Ribicic, Deni; Wibberg, Daniel; Brönner, Ute; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2018-10)Oil-related aggregates (ORAs) may contribute to the fate of oil spilled offshore. However, our understanding about the impact of diatoms and associated bacteria involved in the formation of ORAs and the fate of oil compounds ...