Blar i SINTEF Open på forfatter "Nordtug, Trond"
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Acute and long-term effects of anionic polyacrylamide (APAM) on different developmental stages of two marine copepod species
Farkas, Julia; Altin, Dag; Hansen, Bjørn Henrik; Øverjordet, Ida Beathe; Nordtug, Trond (Journal article; Peer reviewed, 2020-10)The application of synthetic polymers such as anionic polyacrylamides (APAM) in enhanced oil recovery (EOR) may increase in the future. This can lead to environmental release through offshore produced water discharges with ... -
Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus
Farkas, Julia; Yvonne Bådsvik, Camilla; Altin, Dag; Nordtug, Trond; Olsen, Anders Johny; Hansen, Bjørn Henrik (Journal article; Peer reviewed, 2017)The aim of this study was to investigate impacts of fine particulate fraction of a commonly used barite-containing drilling mud on the pelagic filter feeding copepod Calanus finmarchicus. The results show that the tested ... -
Adhesion of mechanically and chemically dispersed crude oil droplets to eggs of Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus)
Hansen, Bjørn Henrik; Sørensen, Lisbet; Almeida Carvalho, Patricia; Meier, Sonnich; Booth, Andy; Altin, Dag; Farkas, Julia; Nordtug, Trond (Journal article; Peer reviewed, 2018-11-01)Crude oil accidentally spilled into the marine environment undergoes natural weathering processes that result in oil components being dissolved into the water column or present in particulate form as dispersed oil droplets. ... -
Application of chemical herders do not increase acute crude oil toxicity to cold-water marine species
Hansen, Bjørn Henrik; Nordtug, Trond; Øverjordet, Ida Beathe; Altin, Dag; Farkas, Julia; Daling, Per Snorre; Sørheim, Kristin Rist; Faksness, Liv Guri (Peer reviewed; Journal article, 2022)Chemical herders may be used to sequester and thicken surface oil slicks to increase the time window for performing in situ burning of spilled oil on the sea surface. For herder use to be an environmentally safe oil spill ... -
Atlantic cod (Gadus morhua) embryos are highly sensitive to short-term 3,4-dichloroaniline exposure
Hansen, Bjørn Henrik; Farkas, Julia; Piarulli, Stefania; Vicario, Silvia; Kvæstad, Bjarne; Williamson, David Roddan; Sørensen, Lisbet; Davies, Emlyn John; Nordtug, Trond (Peer reviewed; Journal article, 2021)3,4-dichloroaniline (3,4-DCA) is one of the most widely produced anilines world-wide, used in plastic packaging, fabrics, pharmaceuticals, pesticides, dyes and paints as well as being a degradation product of several ... -
Attachment of APAM to mineral particles in seawater
Brakstad, Odd Gunnar; Altin, Dag; Aas, Marianne; Skancke, Jørgen; Nordtug, Trond; Farkas, Julia (Peer reviewed; Journal article, 2021)Polymer injection is used in enhanced oil recovery (EOR) when an oil field ages and the pressure in the reservoir decreases, or for oil fields with heavy oil. By polymer injection, the viscosity of the water injected for ... -
Automatic determination of heart rates from microscopy videos of early life stages of fish
Nepstad, Raymond; Davies, Emlyn John; Altin, Dag; Nordtug, Trond; Hansen, Bjørn Henrik (Journal article; Peer reviewed, 2017-08-29)Toxic effects of organic hydrophobic contaminants include impacts on fish heart rate (HR) and cardiac functioning. Thus, in ecotoxicology as well as aquaculture and even medicine, fish heart functioning plays an important ... -
Cellular level response of the bivalve Limecola balthica to seawater acidification due to potential CO2 leakage from a sub-seabed storage site in the southern Baltic Sea: TiTank experiment at representative hydrostatic pressure
Sokołowski, Adam; Świeżak, Justyna; Hallman, Anna; Olsen, Anders Johny; Ziółkowska, Marcelina; Øverjordet, Ida Beathe; Nordtug, Trond; Altin, Dag; Krause, Daniel Franklin; Salaberria, Iurgi; Smolarz, Katarzyna (Journal article; Peer reviewed, 2021-11-10)Understanding of biological responses of marine fauna to seawater acidification due to potential CO2 leakage from sub-seabed storage sites has improved recently, providing support to CCS environmental risk assessment. ... -
Characterization of hollow glass microspheres with potential for regional climate intervention to preserve snow and ice surfaces
Farkas, Julia; Aune, Marianne; Hansen, Bjørn Henrik; Nordam, Tor; Nordtug, Trond; Almeida Carvalho, Patricia; Throne-Holst, Mimmi (Peer reviewed; Journal article, 2023)Cold regions including the Arctic are warming fast, resulting in increased losses of snow and ice cover. A climate intervention approach, where hollow glass microspheres (HGMs) are applied on snow and ice surfaces such as ... -
Chemical and toxicological characterisation of residues from offshore in-situ burning of spilled fuel oils
Faksness, Liv Guri; Altin, Dag; Dolva, Hilde; Nordtug, Trond (Peer reviewed; Journal article, 2022)Burn residues collected after large scale experimental in situ burns performed in the North Sea were characterised with emphasis on chemistry and acute toxicity. Low-energy water accommodated fractions (WAFs) of three ... -
Climate change mitigation effects: How do potential CO2 leaks from a sub-seabed storage site in the Norwegian Sea affect Astarte sp. bivalves?
Bonnail, Estefanía; Borrero Santiago, Ana Rocío; Nordtug, Trond; Øverjordet, Ida Beathe; Krause, Daniel Franklin; Ardelan, Murat Van (Peer reviewed; Journal article, 2021)Carbon capture and storage (CCS) is one of the most promising mitigation strategies for reducing the emissions of carbon dioxide (CO2) to the atmosphere and may substantially help to decelerate global warming. There is an ... -
Comparison of artificially weathered Macondo oil with field samples and evidence that weathering does not increase environmental acute toxicity
Faksness, Liv Guri; Altin, Dag; Størseth, Trond Røvik; Nordtug, Trond; Hansen, Bjørn Henrik (Journal article; Peer reviewed, 2020-05)Macondo source oils and artificially weathered oil residues from 150 °C+ to 300 °C+, including artificially photo oxidized oils, were prepared and used for generating low energy water accommodated fractions (LE-WAFs) in ... -
Crude oil exposures reveal roles for intracellular calcium cycling in haddock craniofacial and cardiac development
Sørhus, Elin; Incardona, John P.; Karlsen, Ørjan; Linbo, Tiffany; Sørensen, Lisbet; Nordtug, Trond; van der Meeren, Terje; Thorsen, Anders; Thorbjørnsen, Maja; Jentoft, Sissel; Edvardsen, Rolf; Meier, Sonnich (Journal article; Peer reviewed, 2016) -
Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets
Hansen, Bjørn Henrik; Salaberria, Iurgi; Read, Kari; Wold, Per Sverre; Hammer, Karen Marie; Olsen, Anders Johny; Altin, Dag; Øverjordet, Ida Beathe; Nordtug, Trond; Bardal, Tora; Kjørsvik, Elin (Journal article; Peer reviewed, 2019-09)During accidental crude oil spills and permitted discharges of produced water into the marine environment, a large fraction of naturally occurring oil components will be contained in micron-sized oil droplets. Toxicity is ... -
Effects of marine mine tailing exposure on the development, growth, and lipid accumulation in Calanus finmarchicus
Svendheim, Linn Hjelmeland; Jager, Tjalling; Olsvik, Pål Asgeir; Øverjordet, Ida Beathe; Ciesielski, Tomasz Maciej; Nordtug, Trond; Kristensen, Torstein; Hansen, Bjørn Henrik; Kvæstad, Bjarne; Altin, Dag; Farkas, Julia (Peer reviewed; Journal article, 2021)Marine tailing disposal (MTD) is sometimes practiced as an alternative to traditional mine tailing deposition on land. Environmental challenges connected to MTD include spreading of fine particulate matter in the water ... -
Effects of mine tailing exposure on early life stages of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus)
Farkas, Julia; Nordtug, Trond; Svendheim, Linn Hjelmeland; D Amico, Elettra; Davies, Emlyn John; Ciesielski, Tomasz Maciej; Jensen, Bjørn Munro; Kristensen, Torstein; Olsvik, Pål Asgeir; Hansen, Bjørn Henrik (Peer reviewed; Journal article, 2021)Mining and processing of minerals produce large quantities of tailings as waste. Some countries, including Norway, allow disposal of mine tailings in the sea. In this study we investigated the impacts of tailings from a ... -
Embryonic exposure to produced water can cause cardiac toxicity and deformations in Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) larvae
Hansen, Bjørn Henrik; Sørensen, Lisbet; Størseth, Trond Røvik; Nepstad, Raymond; Altin, Dag; Krause, Daniel Franklin; Meier, Sonnich; Nordtug, Trond (Journal article; Peer reviewed, 2019-06)Regular discharges of produced water from the oil and gas industry represents the largest direct discharge of effluent into the marine environment worldwide. Organic compound classes typically reported in produced water ... -
Exposure to low environmental copper concentrations does not affect survival and development in Atlantic cod (Gadus morhua) early life stages
Farkas, Julia; Svendheim, Linn Hjelmeland; Jager, Tjalling; Ciesielski, Tomasz Maciej; Nordtug, Trond; Kvæstad, Bjarne; Hansen, Bjørn Henrik; Kristensen, Torstein; Altin, Dag; Olsvik, Pål Asgeir (Peer reviewed; Journal article, 2021)In this study we investigated potential impacts of Cu exposure at low, environmentally relevant, concentrations on early live stages of Atlantic cod (Gadus morhua). Cod embryos and larvae were exposed to 0.5 μg/L (low), ... -
A flow-through imaging system for automated measurement of ichthyoplankton
Williamson, David Roddan; Nordtug, Trond; Leirvik, Frode; Kvæstad, Bjarne; Hansen, Bjørn Henrik; Ludvigsen, Martin; Davies, Emlyn John (Peer reviewed; Journal article, 2022)Microscopic imaging and morphometric measurement of fish embryos and larvae is essential in environmental monitoring of fish populations and to evaluate larvae development in aquaculture. Traditional microscopy methods ... -
Impact and restitution model - Water column. ERA Acute for water column exposed organisms
Brönner, Ute; Nordtug, Trond; Jonsson, Henrik; Ugland, Karl Inne (SINTEF Ocean reports;OC2018 A-035 / SINTEF F26517 / DNV GL 1IL8NGC-13, Research report, 2018-08-22)Exposure to oil components in the water column in ERA Acute can be modelled using either of two alternative options in the oil spill model OSCAR. While the option based on the Critical Body Residue (CBR) takes changing oil ...