Blar i SINTEF Open på forfatter "Altin, Dag"
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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. ... -
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 ... -
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 ... -
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 ... -
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 ... -
KNM "Helge Ingstad" ‐ Miljøundersøkelse - Forvitringsegenskaper, kjemi og toksisitet
Faksness, Liv Guri; Altin, Dag (SINTEF Ocean rapport;OC2019 A‐054, Research report, 2019-03-22)Flere drivstoffprøver fra havaristen Helge lngstad har blitt analysert mhp fysikalske egenskaper og kjemisk sammensetning: Diesel både fra nødlossing og tatt opp på sjø, samt en helikopterfuel som var samlet opp på sjøen. ... -
Maternal polycyclic aromatic hydrocarbon (PAH) transfer and effects on offspring of copepods exposed to dispersed oil with and without oil droplets
Hansen, Bjørn Henrik; Tarrant, Ann; Salaberria, Iurgi; Altin, Dag; Nordtug, Trond; Øverjordet, Ida Beathe (Journal article; Peer reviewed, 2017-08-25)Copepods of the genus Calanus have the potential for accumulating lipophilic oil components due to their high lipid content and found to filter and ingest oil droplets during exposure. As female copepods produce eggs at ... -
Microplastic dispersal behavior in a novel overhead stirring aqueous exposure system
Salaberria, Iurgi; Nadvornik-Vincent, Colette; Monticelli, Giovanna; Altin, Dag; Booth, Andy (Others, 2020-08)Using nominal dose metrics to describe exposure conditions in laboratory-based microplastic uptake and effects studies may not adequately represent the true exposure to the organisms in the test system, making data ... -
Modelling the dynamics of growth, development and lipid storage in the marine copepod Calanus finmarchicus
Jager, Tjalling; Salaverria-Zabalegui, Iurgi Imanol; Altin, Dag; Nordtug, Trond; Hansen, Bjørn Henrik (Journal article; Peer reviewed, 2017)Mechanistic models are essential tools for interpreting and predicting the consequences of a changing environment and stressors such as pollution on the life histories of marine organisms. Here, we apply the simple and ... -
Mortality and transcriptional effects of inorganic mercury in the marine copepod Calanus finmarchicus
Tollefsen, Knut Erik; Song, You; Høgåsen, Tore; Øverjordet, Ida Beathe; Altin, Dag; Hansen, Bjørn Henrik (Journal article; Peer reviewed, 2017-08-25)Inorganic mercury (Hg) is highly toxic to organisms including crustaceans and displays multiple toxic modes of action (MoA). The main aim of this investigation was to assess the acute and sublethal toxicity mediated by ... -
Phenanthrene Bioavailability and Toxicity to Daphnia magna in the Presence of Carbon Nanotubes with Different Physicochemical Properties
Zindler, Florian; Glomstad, Berit; Altin, Dag; Liu, Jingfu; Jenssen, Bjørn Munro; Booth, Andy (Journal article; Peer reviewed, 2016-10-04)Studies investigating the effect of carbon nanotubes (CNTs) on the bioavailability and toxicity of hydrophobic organic compounds in aquatic environments have generated contradictory results, and the influence of different ...