• Anthropogenic impact on marine ecosystem health: A comparative multi-proxy investigation of recent sediments in coastal waters 

      Filipkowska, Anna; Lubecki, Ludwik; Szymczak-Żyła, Małgorzata; Ciesielski, Tomasz Maciej; Jenssen, Bjørn Munro; Ardelan, Murat Van; Mazur-Marzec, Hanna; Breedveld, Gijs D.; Oen, Amy M P; Zamojska, Anna; Kowalewska, Grażyna (Journal article; Peer reviewed, 2018)
      Hazardous substances entering the sea, and ultimately deposited in bottom sediments, pose a growing threat to marine ecosystems. The present study characterized two coastal areas exposed to significant anthropogenic impact ...
    • Biodegradation of weathered crude oil in seawater with frazil ice 

      Lofthus, Synnøve; Bakke, Ingrid; Tremblay, Julien; Greer, Charles; Brakstad, Odd Gunnar (Peer reviewed; Journal article, 2020)
      As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil ...
    • Blood and feather concentrations of toxic elements in a Baltic and an Arctic seabird population 

      Fenstad, Anette; Bustnes, Jan Ove; Lierhagen, Syverin; Gabrielsen, Kristin Møller; Öst, Markus; Jaatinen, Kim; Hanssen, Sveinn Are; Moe, Børge; Jenssen, Bjørn Munro; Krøkje, Åse (Journal article; Peer reviewed, 2017)
      Wereport blood and feather concentrations of elements in the Baltic Sea and Arctic population of common eiders (Somateria mollissima). The endangered Baltic Sea population of eiders was demonstrably affected by element ...
    • Comparison of two field systems for determination of crude oil biodegradation in cold seawater 

      Langeloh, Hendrik Hinrich; Greer, Charles W.; Vergeynst, Leendert; Hakvåg, Sigrid; Øverjordet, Ida Beathe; Bakke, Ingrid; Sørensen, Lisbet; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2024)
      Marine oil spills have devastating environmental impacts and extrapolation of experimental fate and impact data from the lab to the field remains challenging due to the lack of comparable field data. In this work we compared ...
    • Distribution pattern of mercury in northern Barents Sea and Eurasian Basin surface sediment 

      Kohler, Stephen Gustav; Kull, Laura M.; Heimbürger-Boavida, Lars-Eric; Ricardo de Freitas, Thaise; Sanchez, Nicolas; Ndungu, Kuria; Ardelan, Murat Van (Peer reviewed; Journal article, 2022)
      Marine sediment is a significant sink for the global pollutant mercury. In a rapidly changing Arctic region, mercury (Hg) bioaccumulation in the marine ecosystem remains a prominent environmental issue. Here, we report ...
    • An impact-based environmental risk assessment model toolbox for offshore produced water discharges 

      Nepstad, Raymond; Kotzakoulakis, Konstantinos; Hansen, Bjørn Henrik; Nordam, Tor; Carroll, JoLynn (Peer reviewed; Journal article, 2023)
      We present a novel approach to environmental risk assessment of produced water discharges based on explicit impact and probability, using a combination of transport, fate and toxicokinetic-toxicodynamic models within a ...
    • Microplastic dispersal behavior in a novel overhead stirring aqueous exposure system 

      Salaberria, Iurgi; Nadvornik-Vincent, Colette; Monticelli, Giovanna; Altin, Dag; Booth, Andy (Peer reviewed; Journal article, 2020)
      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 of oil thickness in the presence of an ice edge 

      Nordam, Tor; Litzler, Emma; Skancke, Jørgen; Singsaas, Ivar; Leirvik, Frode; Johansen, Øistein (Peer reviewed; Journal article, 2020)
      Oil slick thickness is a key parameter for the behaviour of oil spilled at sea. It influences evaporation and entrainment, viable response options, and the risk to marine life at the surface. Determining this value is ...
    • On the use of random walk schemes in oil spill modelling 

      Nordam, Tor; Nepstad, Raymond; Litzler, Emma; Röhrs, Johannes (Journal article; Peer reviewed, 2019)
      In oil spill models, vertical mixing due to turbulence is commonly modelled by random walk. If the eddy diffusivity varies with depth, failing to take the derivative of the diffusivity into account in the random walk scheme ...