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Rune Dietz

ARCTOX: a pan-Arctic sampling network to track mercury contamination across Arctic marine food webs

Publikation: KonferencebidragKonferenceabstrakt til konferenceForskningpeer review

  • Jerome Fort, Danmark
  • Halfdan Helgason
  • ,
  • Francoise Amelineau
  • ,
  • Tycho Anker-Nilssen, Danmark
  • Jan Ove Bustnes, Norwegian Institute for Nature Research, Unit for Arctic Ecology, The Polar Environmental Centre, Norge
  • Johannis Danielsen, Faroe Marine Research Institute, Færøerne
  • Sebastian Dechamps
  • ,
  • Rune Dietz
  • Kyle Elliott, McGill University, Canada, Canada
  • Kjell Einar Erikstad, Norwegian Institute for Nature Research, Unit for Arctic Ecology, The Polar Environmental Centre, Norwegian Inst Nat Res, Fram Ctr, Dept Arctic Ecol, Norge
  • Alexey Ezhov
  • ,
  • Maria Gavrilo, National Park Russian Arctic, Archangelsk, Rusland
  • Grant Gilchrist, Environment Canada, National Wildlife Centre, Canada
  • Olivier Gilg, Laboratoire Biogéosciences, UMR CNRS 5561, Université de Bourgogne, Frankrig
  • David Grémillet, CEFE-CNRS UMR 5175, Frankrig
  • Erpur S. Hansen, South Iceland Nat Res Ctr
  • ,
  • Sveinn Are Hanssen, Norwegian Institute for Nature Research, Norwegian Inst Nat Res, Fram Ctr, Dept Arctic Ecol, Norwegian Inst Nat Res, Norge
  • Morten Helberg
  • ,
  • Nicholas Per Huffeldt
  • Jón Einar Jónsson, University of Iceland, Island
  • Alexander S. Kitaysky
  • ,
  • Magdalene Langseth
  • ,
  • sarah leclaire
  • ,
  • Thorkell L. Thórarinsson, Northeast Iceland Nature Research Centre
  • ,
  • Lorentsen Svein-Håkon, Norwegian Institute for Nature Research, Norge
  • Erlend Lorentzen
  • ,
  • Mark Malleroy
  • ,
  • Flemming Ravn Merkel
  • Børge Moe, Norwegian Institute for Nature Research
  • ,
  • William A. Montevecchi
  • ,
  • Anders Mosbech
  • [No Value] m.fl., Danmark
Arctic marine ecosystems are threatened by new risks of Hg contamination under the combined effects of climate change and human activities. Rapid change of the cryosphere might for instance release large amounts of Hg trapped in sea-ice, permafrost and terrestrial glaciers over the last decades. Sea-ice disappearance is opening new shipping areas to polluting human industries. The general warming of ocean water masses is expected to affect the cycle of Hg, thereby increasing exposure of marine organisms. Hence, Hg could have high impacts on Arctic organisms, biodiversity and ecosystems and is still a source of major environmental concerns. In that context, providing a large-scale and comprehensive understanding of the Arctic marine food-web contamination is essential to better apprehend impacts of anthropogenic activities and climate change on the exposure of Arctic species and humans to Hg. In 2015, an international sampling network (ARCTOX) has been established, allowing the collection seabird samples all around the Arctic. Seabirds are indeed good indicators of Hg contamination of marine food webs at large spatial scale. Gathering researchers from 10 countries, ARCTOX allowed the collection of >5000 samples from twelve seabird species at >40 Arctic sites in 2015 and 2016. These different species have different trophic ecologies (diets and habitats) and will therefore provide information on Hg contamination for the different compartments of Arctic marine ecosystems (i.e benthic, pelagic, epontic, coastal, oceanic). By relying on this new network and by combining Hg analyses with biotelemetry, we aim at (1) monitoring spatio-temporal variations of Hg in Arctic biota. (2) Defining Arctic hotspots of Hg contamination and highlighting sensitive areas that require particular attention and protection. (3) Identifying non-Arctic sources of Hg contamination for migratory Arctic predators.
Udgivelsesår16 jul. 2017
Antal sider1
StatusUdgivet - 16 jul. 2017
Begivenhed13th International Conference on Mercury as a Global Pollutant (ICMGP2017) - Rohde Island, Providence, USA
Varighed: 16 jul. 201821 jul. 2018
Konferencens nummer: 13


Konference13th International Conference on Mercury as a Global Pollutant (ICMGP2017)
LokationRohde Island

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