Blar i SINTEF Open på forfatter "Altin, Dag"
-
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 ... -
Acute hydrogen peroxide (H2O2) exposure does not cause oxidative stress in late-copepodite stage of Calanus finmarchicus
Hansen, Bjørn Henrik; Hallmann, Anna; Altin, Dag; Jenssen, Bjørn Munro; Ciesielski, Tomasz Maciej (Journal article; Peer reviewed, 2017-08-04)Use of hydrogen peroxide (H2O2) for removal of salmon lice in the aquaculture industry has created concern that non-target organisms might be affected during treatment scenarios. The aim of the present study was to examine ... -
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 ... -
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. ... -
Characterisation of fine-grained tailings from a marble processing plant and their acute effects on the copepod Calanus finmarchicus
Farkas, Julia; Altin, Dag; Hammer, Karen Marie; Hellstrøm, Kaja Cecilie; Booth, Andy; Hansen, Bjørn Henrik (Journal article; Peer reviewed, 2017)Submarine tailing disposal (STD) of mining waste is practiced as an alternative to land fill disposal in several countries. Knowledge of the environmental implications of STD on fjord and other marine ecosystems, including ... -
Characterization of Low Sulfur Fuel Oils (LSFO) – A new generation of marine fuel oils - OC2020 A-050
Sørheim, Kristin Rist; Daling, Per Snorre; Cooper, David; Bust, Ian; Faksness, Liv Guri; Altin, Dag; Pettersen, Thor-Arne; Bakken, Oddveig Merethe (Research report, 2020-07-08)This Multi-client project "Characterization of Low Sulfur Fuel Oils (LSFO) - A new generation of marine fuel oils" has been a 1-year project (2019-2020). The project has been funded by MPRI/DFO Canada, ITOPF and the Norwegian ... -
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 ... -
Combined effects of exposure to engineered silver nanoparticles and the water-soluble fraction of crude oil in the marine copepod Calanus finmarchicus
Farkas, Julia; Cappadona, V; Olsen, Anders Johny; Hansen, Bjørn Henrik; Posch, Wilfried; Ciesielski, Tomasz Maciej; Goodhead, Rhys; Wilflingseder, Doris; Blatzer, M; Altin, Dag; Moger, Julian; Booth, Andrew; Jenssen, Bjørn Munro (Journal article; Peer reviewed, 2020-10)While it is likely that ENPs may occur together with other contaminants in nature, the combined effects of exposure to both ENPs and environmental contaminants are not studied sufficiently. In this study, we investigated ... -
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 ... -
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 nylon microplastic on feeding, lipid accumulation and moulting in a coldwater copepod
Cole, Matthew; Coppock, Rachel; Lindeque, Pennie K.; Altin, Dag; Reed, Sarah; Pond, David; Sørensen, Lisbet; Galloway, Tamara S.; Booth, Andy (Journal article; Peer reviewed, 2019-05-24)Microplastic debris is a pervasive environmental contaminant that has the potential to impact the health of biota, although its modes of action remain somewhat unclear. The current study tested the hypothesis that exposure ... -
Effects of produced water on pelagic marine organisms - Focus on the copepod Calanus finmarchicus
Hansen, Bjørn Henrik; Altin, Dag; Størseth, Trond Røvik (SINTEF Ocean reports;OC2017 A-121, Research report, 2017-05)The main aim of this project was to provide a basis for assessing the potential health effects of produced water (PW) on the marine pelagic zooplankton Calanus finmarchicus in the field. This report describes three experiments ... -
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 ... -
Establishing a link between composition and toxicity of offshore produced waters using comprehensive analysis techniques – A way forward for discharge monitoring?
Sørensen, Lisbet; McCormack, Paul; Altin, Dag; Robson, William J.; Booth, Andy; Faksness, Liv Guri; Rowland, Steven J; Størseth, Trond Røvik (Journal article; Peer reviewed, 2019)Extracts of produced waters from five mature Norwegian Sea oil fields were examined as total organic extracts (TOEs) and after fractionation into operationally-defined ‘polar’ and ‘apolar’ fractions. The TOEs and fractions ... -
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), ... -
Freshwater dispersion stability of PAA-stabilised cerium oxide nanoparticles and toxicity towards Pseudokirchneriella subcapitata
Booth, Andy; Størseth, Trond Røvik; Altin, Dag; Fornara, Andrea; Ahniyaz, Anwar; Jungnickel, Harald; Laux, Peter; Luch, Andreas; Sørensen, Lisbet (Journal article; Peer reviewed, 2015)An aqueous dispersion of poly (acrylic acid)-stabilised cerium oxide (CeO2) nanoparticles (PAA-CeO2) was evaluated for its stability in a range of freshwater ecotoxicity media (MHRW, TG 201 and M7), with and without natural ... -
The impact of exposure timing on embryo mortality and the partitioning of PAHs when cod eggs are exposed to dispersed and dissolved crude oil
Nordtug, Trond; Olsen, Anders Johny; Wold, Per-Arvid; Salaberria, Iurgi; Øverjordet, Ida Beathe; Altin, Dag; Kjørsvik, Elin; Hansen, Bjørn Henrik (Peer reviewed; Journal article, 2022)During sub-sea oil spills to the marine environment, oil droplets will rise towards the sea surface at a rate determined by their density and diameter as well as the vertical turbulence in the water. Micro-droplets (< 50 ...