Blar i forfatter "Vieweg, Ireen"

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    • Antioxidant defenses in polar cod (Boreogadus saida) and responsiveness toward dietary crude oil exposure 

      Vieweg, Ireen; Benedetti, Maura; Lanzoni, Ilaria; Regoli, Francesco; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-13)
      Increasing anthropogenic activities in the Arctic pose the risk for accidental oil spills but our knowledge of ecotoxicological effects is still limited for Arctic organisms. This study aimed to provide insights in baseline levels of antioxidants in polar cod (<i>Boreogadus saida</i>) from different Arctic locations and investigate the susceptibility of this species to oxidative stress during a 32 ...

    • Effects of chronic crude oil exposure on the fitness of polar cod (Boreogadus saida) through changes in growth, energy reserves and survival 

      Vieweg, Ireen; Bender, Morgan Lizabeth; Semenchuk, Philipp; Hop, Haakon; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-21)
      Climate models predict extended periods with sea-ice free Arctic waters during the next decade, which will allow more shipping activity and easier access to petroleum resources. Increased industrial activities raise concerns about the biological effects of accidental petroleum release on key species of the Arctic marine ecosystem, such as the polar cod (<i>Boreogadus saida</i>). This study examines ...

    • Effects of chronic dietary petroleum exposure on reproductive development in polar cod (Boreogadus saida) 

      Bender, Morgan Lizabeth; Frantzen, Marianne; Vieweg, Ireen; Falk-Petersen, Inger-Britt; Johnsen, Helge Kreutzer; Rudolfsen, Geir; Tollefsen, Knut Erik; Dubourg, Paul; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-10-04)
      Increasing human activities in the Arctic raise the risk of petroleum pollution, thus posing an elevated risk for Arctic organisms to be chronically exposed to petroleum compounds. The endocrine disrupting properties of some of these compounds (i.e. polycyclic aromatic hydrocarbons [PAHs]) present in crude oil may have negative effects on the long and energy intensive reproductive development of ...

    • Effects of dietary crude oil exposure on molecular and physiological parameters related to lipid homeostasis in polar cod (Boreogadus saida) 

      Vieweg, Ireen; Bilbao, Eider; Meador, James P.; Cancio, Ibon; Bender, Morgan Lizabeth; Cajaraville, Miren P.; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-17)
      Polar cod is an abundant Arctic key species, inhabiting an ecosystem that is subjected to rapid climate change and increased petroleum related activities. Few studies have investigated biological effects of crude oil on lipid metabolism in this species, despite lipids being a crucial compound for Arctic species to adapt to the high seasonality in food abundance in their habitat. This study examines ...

    • Gender specific reproductive strategies of an arctic key species (Boreogadus saida) and implications of climate change 

      Nahrgang, Jasmine; Varpe, Øystein; Korshunova, Ekaterina; Murzina, Svetlana; Hallanger, Ingeborg G.; Vieweg, Ireen; Berge, Jørgen (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Morphology, Transcriptomics and In Vitro Model of Skin from Polar Cod (Boreogadus Saida) and Atlantic Cod (Gadus Morhua) 

      Ytteborg, Elisabeth; Hansen, Øyvind Johannes; Høst, Vibeke; Afanasyev, Sergey; Vieweg, Ireen; Nahrgang, Jasmine; Krasnov, Aleksei (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-04)
      Fish skin is a multifunctional barrier tissue with high regeneration capacity that interacts with the surrounding environment and provides protection. Functional importance, high complexity and activity make skin an attractive tissue for studying the effects of environmental challenges and chemical stressors in fish. The aim of this work was to characterize skin from polar cod (<i>Boreogadus saida</i>) ...

    • Spawning time in adult polar cod (Boreogadus saida) altered by crude oil exposure, independent of food availability 

      Strople, Leah Catherine; Vieweg, Ireen; Yadetie, Fekadu; Odei, Derrick Kwame; Thorsen, Anders; Karlsen, Odd André; Goksøyr, Anders; Sørensen, Lisbet; Sarno, Antonio; Hansen, Bjørn Henrik; Frantzen, marianne; Hansen, Øyvind J; Puvanendran, Velmurugu; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-03)
      Fish early life stages are well known for their sensitivity to crude oil exposure. However, the effect of crude oil exposure on adults and their gametes during their spawning period is not well studied. Polar cod, a key arctic fish, may be at risk for crude oil exposure during this potentially sensitive life stage. Additionally, this species experiences lower food availability during their spawning ...

    • Transcriptome responses in polar cod (Boreogadus saida) liver slice culture exposed to benzo[a]pyrene and ethynylestradiol: insights into anti-estrogenic effects 

      Yadetie, Fekadu; Brun, Nadja R; Vieweg, Ireen; Nahrgang, Jasmine; Karlsen, Odd André; Goksøyr, Anders (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-17)
      Polar cod (<i>Boreogadus saida</i>) is a key species in the arctic marine ecosystem vulnerable to effects of pollution, particularly from petroleum related activities. To facilitate studying the effects of those pollutants, we adapted a precision-cut liver slice culture protocol for this species. Using this system on board a research vessel, we studied gene expression in liver slice after exposure ...