Blar i Publikasjoner fra CRIStin - SINTEF Ocean på forfatter "Hansen, Bjørn Henrik"
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Accumulation and toxicity of monoaromatic petroleum hydrocarbons in early life stages of cod and haddock
Sørensen, Lisbet; Hansen, Bjørn Henrik; Farkas, Julia; Donald, Carey; Robson, William; Tonkin, Andrew; Meier, Sonnich; Rowland, Steven J (Journal article; Peer reviewed, 2019-08)A multitude of recent studies have documented the detrimental effects of crude oil exposure on early life stages of fish, including larvae and embryos. While polycyclic aromatic hydrocarbons (PAHs), particularly alkyl PAHs, ... -
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 ... -
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 ... -
Automated morphometrics on microscopy images of Atlantic cod larvae using Mask R-CNN and classical machine vision techniques
Kvæstad, Bjarne; Hansen, Bjørn Henrik; Davies, Emlyn John (Peer reviewed; Journal article, 2022)Measurements of morphometrical parameters on i.e., fish larvae are useful for assessing the quality and condition of the specimen in environmental research or optimal growth in the cultivation industry. Manually acquiring ... -
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 ... -
Biodegradation-mediated alterations in acute toxicity of water-accommodated fraction and single crude oil components in cold seawater
Brakstad, Odd Gunnar; Størseth, Trond Røvik; Rønsberg, Marianne Unaas; Hansen, Bjørn Henrik (Journal article; Peer reviewed, 2018-08)Hydrocarbon biodegradation may be slower in cold Arctic than in temperate seawater, and this will affect the toxicity time window of the hydrocarbons. In this study, the acute toxicities of water-soluble phases of ... -
Body burdens of PAHs and alkylated phenols in copepods in the Ekofisk region - Water column monitoring 2021
Hansen, Bjørn Henrik; Choquet, Marvin; Sørensen, Lisbet; Creese, Mari; Rønsberg, Marianne Unaas; Nepstad, Raymond (SINTEF Ocean rapporter;OC2022 A-108, Research report, 2022-11-28)This report summarizes the findings from the Water Column Monitoring in April 2021 where zooplankton (Calanus finmarchicus) were collected and sampled around the Ekofisk region in the North Sea. Extraction and analyses of ... -
Can lipidomics help identifying egg quality in ballan wrasse?
Malzahn, Arne; Sarno, Antonio; Hagemann, Andreas; Farkas, Julia; Musialak, Luciana Alves; Kjørsvik, Elin; Hansen, Bjørn Henrik (Peer reviewed; Journal article, 2022)Ballan wrasse (Labrus bergylta) is in the limelight of aquaculture research due to the species role as cleaner fish in salmon aquaculture. A major drawback is that the salmon industry still depends on wild caught fish as ... -
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 ... -
Combined effects of crude oil exposure and warming on eggs and larvae of an arctic forage fish
Bender, Morgan Lizabeth; Giebichenstein, Julia; Teisrud, Ragnar; Laurent, Jennifer Malica; Frantzen, Marianne; Meador, James P.; Sørensen, Lisbet; Hansen, Bjørn Henrik; Reinardy, Helena C.; Laurel, Benjamin J.; Nahrgang, Jasmine (Peer reviewed; Journal article, 2021)Climate change, along with environmental pollution, can act synergistically on an organism to amplify adverse effects of exposure. The Arctic is undergoing profound climatic change and an increase in human activity, resulting ... -
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 ... -
DREAM produced water plume and uptake simulations - Predictions and comparisons with data from the 2021 Water Column Monitoring at Ekofisk: plume trajectory and PAH uptake in mussels and copepods
Nepstad, Raymond; Skancke, Jørgen; Hansen, Bjørn Henrik (SINTEF rapport;2022:01303 A, Research report, 2022-02-01)Full text report to be uploaded -
Dynamic Links between Lipid Storage, Toxicokinetics and Mortality in a Marine Copepod Exposed to Dimethylnaphthalene
Jager, Tjalling; Øverjordet, Ida Beathe; Nepstad, Raymond; Hansen, Bjørn Henrik (Journal article; Peer reviewed, 2017-06-17)Efficiently assessing and managing the risks of pollution in the marine environment requires mechanistic models for toxic effects. The General Unified Threshold model for Survival (GUTS) provides a framework for deriving ... -
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 ...