Blar i NTNU Open på forfatter "Kohler, Stephen Gustav"

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    • Arctic Ocean’s wintertime mercury concentrations limited by seasonal loss on the shelf 

      Kohler, Stephen Gustav; Heimbürger-Boavida, Lars-Eric; Petrova, Mariia V.; Digernes, Maria Guadalupe; Sanchez, Nicolas; Dufour, Aurelie; Simic, Anica; Ndungu, Kuria; Ardelan, Murat Van (Peer reviewed; Journal article, 2022)
      High biota mercury levels are persisting in the Arctic, threatening ecosystem and human health. The Arctic Ocean receives large pulsed mercury inputs from rivers and the atmosphere. Yet the fate of those inputs and possible ...

    • Biotic transformation of methylmercury at the onset of the Arctic spring bloom 

      Kohler, Stephen Gustav; Heimbürger-Boavida, Lars-Eric; Assmy, Philipp Kurt Wolf; Müller, Oliver; Thiele, Stefan; Digernes, Maria Guadalupe; Ndungu, Kuria; Ardelan, Murat van (Journal article; Peer reviewed, 2024)
      Despite the lack of local anthropogenic mercury sources, methylated mercury (MeHg) concentrations in Arctic biota are higher than in biota from lower latitudes. The main entry route occurs during the bioconcentration of ...

    • 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 ...

    • A risk assessment review of mercury exposure in Arctic marine and terrestrial mammals 

      Dietz, Rune; Letcher, Robert J.; Aars, Jon; Andersen, Magnus; Boltunov, Andrei; Born, Erik W.; Ciesielski, Tomasz Maciej; Das, Krishna; Dastnai, Sam; Derocher, Andrew E.; Desforges, Jean-Pierre; Eulaers, Igor; Ferguson, Steve; Hallanger, Ingeborg G.; Heide-Jørgensen, Mads P.; Heimbürger-Boavida, Lars-Eric; Hoekstra, Paul F.; Jenssen, Bjørn Munro; Kohler, Stephen Gustav; Larsen, Martin M.; Lindstrøm, Ulf Ove; Lippold, Anna; Morris, Adam; Nabe-Nielsen, Jacob; Nielsen, Nynne H.; Peacock, Elizabeth E.; Pinzone, Marianna; Rigét, Frank F.; Rosing-Asvid, Aqqalu; Routti, Heli Anna Irmeli; Siebert, Ursula; Stenson, Garry; Stern, Gary; Strand, Jakob; Søndergaard, Jens; Treu, Gabriele; Víkingsson, Gisli A.; Wang, Feiyue; Welker, Jeffrey M.; Wiig, Øystein; Wilson, Simon J.; Sonne, Christian (Peer reviewed; Journal article, 2022)
      There has been a considerable number of reports on Hg concentrations in Arctic mammals since the last Arctic Monitoring and Assessment Programme (AMAP) effort to review biological effects of the exposure to mercury (Hg) ...

    • Total Mercury Distribution in the Barents Sea and the Arctic Ocean Surface Sediments 

      Kull, Laura Maria (Master thesis, 2022)
      Mercury (Hg) has been a trace metal of interest for decades due to its neurotoxic effects on humans and other organisms coupled with its ability to bioaccumulate and biomagnify. Areas like the Arctic and the ocean floor ...