Blar i forfatter "Blévin, Pierre"

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    • A deep dive into fat: Investigating blubber lipidomic fingerprint of killer whales and humpback whales in northern Norway 

      Bories, Pierre; Rikardsen, Audun H.; Leonards, Pim; Fisk, Aaron T.; Tartu, Sabrina; Vogel, Emma; Bytingsvik, Jenny; Blévin, Pierre (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-01)
      In cetaceans, blubber is the primary and largest lipid body reservoir. Our current understanding about lipid stores and uses in cetaceans is still limited, and most studies only focused on a single narrow snapshot of the lipidome. We documented an extended lipidomic fingerprint in two cetacean species present in northern Norway during wintertime. We were able to detect 817 molecular lipid species ...

    • 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 ...

    • Mass strandings of seven toothed and baleen whale species in Northern Norway in March 2020 call for further investigation 

      Aniceto, Ana Sofia; Tassara, Luca; Rikardsen, Audun; Blévin, Pierre (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-06)
      Monitoring whale strandings are a key aspect of ecosystem management as stranded animals can provide indications on ecosystem health, pollution and adverse efects due to anthropogenic activities. Most mass mortality events are reported for toothed whales and rarely involve baleen whales. In the course of one month in spring 2020, 17 whales belonging to seven diferent species, stranded on the ...

    • Norwegian killer whale movements reflect their different preytypes 

      Vogel, Emma Frances; Rikardsen, AH; Blanchet, Marie-Anne; Blévin, Pierre; Biuw, Martin (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-21)
      Norwegian killer whales (Orcinus orca) are thought to be generalists that feed primarily on fish, but some individuals have been observed targeting pinnipeds. In the study reported here, field observations of foraging behaviours formed the basis of a priori classification as either seal-eaters or fish-eaters. Concurrent collection of photographic identification and biopsies for stable isotope analysis ...

    • 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 ...

    • Pelagic vs coastal - Key drivers of pollutant levels in Barents Sea polar bears with contrasted space-use strategies 

      Blévin, Pierre; Aars, Jon; Andersen, Magnus; Blanchet, Marie-Anne; Hanssen, Linda; Herzke, Dorte; Jeffreys, Rachel M.; Nordøy, Erling Sverre; Pinzone, Marianna; de la Vega, Camille; Routti, Heli Anna Irmeli (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-11)
      In the Barents Sea, pelagic and coastal polar bears are facing various ecological challenges that may explain the difference in their pollutant levels. We measured polychlorinated biphenyls, organochlorine pesticides, polybrominated diphenyl ethers in fat, and perfluoroalkyl substances in plasma in pelagic and coastal adult female polar bears with similar body condition. We studied polar bear feeding ...

    • 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 ...