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dc.contributor.authorPanieri, Giuliana
dc.contributor.authorArgentino, Claudio
dc.contributor.authorRamalho, Sofia P.
dc.contributor.authorVulcano, Francesca
dc.contributor.authorSavini, Alessandra
dc.contributor.authorFallati, Luca
dc.contributor.authorBrekke, Trond
dc.contributor.authorGalimberti, Giulia
dc.contributor.authorRiva, Federica
dc.contributor.authorBalsa, João
dc.contributor.authorEilertsen, Mari Heggernes
dc.contributor.authorStokke, Runar
dc.contributor.authorSteen, Ida Helene
dc.contributor.authorSahy, Diana
dc.contributor.authorKalenitchenko, Dimitri Stanislas Desire
dc.contributor.authorBünz, Stefan
dc.contributor.authorMattingsdal, Rune
dc.description.abstractDue to climate change, decreasing ice cover and increasing industrial activities, Arctic marine ecosystems are expected to face higher levels of anthropogenic stress. To sustain healthy and productive ocean ecosystems, it is imperative to build baseline data to assess future changes. Herein, a natural oil seep site offshore western Svalbard (Prins Karls Forland, PKF, 80–100 m water depth), discovered using satellite radar images, was investigated using an extensive multiscale and multisource geospatial dataset collected by satellite, aerial, floating, and underwater platforms. The PKF seep covers roughly a seafloor area of 30,000 m2 and discharges oil from Tertiary or younger source rocks. Biomarker analyses confirm that the oil in the slicks on the sea surface and from the seep on the seafloor have the same origin. Uranium/Thorium dating of authigenic carbonate crusts indicated that the seep had emanated since the Late Pleistocene when ice sheet melting unlocked the hydrocarbons trapped beneath the ice. The faunal communities at the PKF seep are a mix of typical high latitude fauna and taxa adapted to reducing environments. Remarkably, the inhospitable oil-impregnated sediments were also colonized by abundant infaunal organisms. Altogether, in situ observations obtained at the site provide essential insights into the characteristics of high–latitude oil seeps and can be used as a natural laboratory for understanding the potential impacts of human oil discharge into the oceanen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleAn Arctic natural oil seep investigated from space to the seaflooren_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.source.journalScience of the Total Environmenten_US
dc.relation.projectNorges forskningsråd: 315427en_US
dc.relation.projectNorges forskningsråd: 287869en_US
dc.relation.projectNorges forskningsråd: 223259en_US
dc.relation.projectArtsdatabanken: 3-20-70184243en_US
dc.identifier.citationScience of the Total Environment. 2023, 970, 167788.en_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal