Blar i forfatter "Harju, Mikael"

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    • Can plastic related chemicals be indicators of plastic ingestion in an Arctic seabird? 

      Collard, France; Tulatz, Felix; Harju, Mikael; Herzke, Dorte; Bourgeon, Sophie; Gabrielsen, Geir Wing (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-22)
      For decades, the northern fulmar (Fulmarus glacialis) has been found to ingest and accumulate high loads of plastic due to its feeding ecology and digestive tract morphology. Plastic ingestion can lead to both physical and toxicological effects as ingested plastics can be a pathway for hazardous chemicals into seabirds' tissues. Many of these contaminants are ubiquitous in the environment and the ...

    • Characterizing cytotoxic and estrogenic activity of Arctic char tissue extracts in primary Arctic char hepatocytes 

      Petersen, Karina; Hultman, Maria Thérése; Bytingsvik, Jenny; Harju, Mikael; Evenset, Anita; Tollefsen, Knut Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-01)
      Contaminants from various anthropogenic activities are detected in the Arctic due to long-range atmospheric transport, ocean currents, and living organisms such as migrating fish or seabirds. Although levels of persistent organic pollutants (POPs) in Arctic fish are generally low, local hot spots of contamination were found in freshwater systems such as Lake Ellasjøen at Bjørnøya (Bear Island, ...

    • Contaminants in Atlantic walruses Part 2: Relationships with endocrine and immune systems 

      Routti, Heli; Diot, Beatrice; Panti, Cristina; Duale, Nur; Fossi, Maria Cristina; Harju, Mikael; Kovacs, Kit M.; Lydersen, Christian; Scotter, Sophie; Villanger, Gro Dehli; Bourgeon, Sophie (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-30)
      Marine mammals in the Barents Sea region have among the highest levels of contaminants recorded in the Arctic and the Atlantic walrus (<i>Odobenus rosmarus rosmarus</i>) is one of the most contaminated species within this region. We therefore investigated the relationships bewteen blubber concentrations of lipophilic persistent organic pollutants (POPs) and plasma concentrations of perfluoroalkyl ...

    • Establishment of killer whale (Orcinus orca) primary fibroblast cell cultures and their transcriptomic responses to pollutant exposure 

      Bjørneset, Juni; Blévin, Pierre; Bjørnstad, Pål Marius; Dalmo, Roy Ambli; Goksøyr, Anders; Harju, Mikael; Yadetie, Fekadu; Routti, Heli Anna Irmeli; Limonta, G.; Panti, C.; Sundaram, A.Y.M.; Rikardsen, Audun H. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-02)
      Populations of killer whale (Orcinus orca) contain some of the most polluted animals on Earth. Yet, the knowledge on effects of chemical pollutants is limited in this species. Cell cultures and in vitro exposure experiments are pertinent tools to study effects of pollutants in free-ranging marine mammals. To investigate transcriptional responses to pollutants in killer whale cells, we collected skin ...

    • Kartlegging av miljøgifter i sjøfuglegg fra Sklinna og Røst 

      Huber, Sandra; Nygård, Torgeir; Warner, Nicholas Alexander; Remberger, Mikael; Harju, Mikael; Uggerud, Hilde Thelle; Kaj, Lennart; Schalbach, Martin; Hanssen, Linda (Research report; Forskningsrapport, 2014)
      I dette kartleggingsprosjektet ble analysert konsentrasjonene til en lang rekke uorganiske og organiske miljøgifter, som metaller, organotinn, polysykliske aromatiske hydrokarboner, polyklorerte bifenyler og metabolitter, klorerte parafiner, klororganiske pesticider og andre pesticider, per- og polyfluoralkylstoffer, deklorane pluss, oktaklorostyren, organofosfor flammehemmere, bromerte flammehemmere, ...

    • Occurrence of emerging brominated flame retardants and organophosphate esters in marine wildlife from the Norwegian Arctic 

      Lippold, Anna; Harju, Mikael; Aars, Jon; Blévin, Pierre; Bytingsvik, Jenny; Gabrielsen, Geir W.; Kovacs, Kit M.; Lyche, Jan Ludwig; Lydersen, Christian; Rikardsen, Audun H.; Routti, Heli Anna Irmeli (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-10)
      To understand the exposure and potential sources of emerging brominated flame retardants (EBFR) and organophosphate esters (OPEs) in marine wildlife from the Norwegian Arctic, we investigated concentrations of EBFRs in 157 tissue samples from nine species of marine vertebrates and OPEs in 34 samples from three whale species. The samples, collected from a wide range of species with contrasting ...

    • Phthalate contamination in marine mammals off the Norwegian coast 

      Andvik, Clare Margaret; Bories, Pierre; Harju, Mikael; Borgå, Katrine; Jourdain, Eve Marie; Karoliussen, Richard; Rikardsen, Audun Håvard; Routti, Heli Anna Irmeli; Blévin, Pierre (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-27)
      Phthalates are used in plastics, found throughout the marine environment and have the potential to cause adverse health effects. In the present study, we quantified blubber concentrations of 11 phthalates in 16 samples from stranded and/or free-living marine mammals from the Norwegian coast: the killer whale (Orcinus orca), sperm whale (Physeter macrocephalus), long-finned pilot whale (Globicephala ...