Blar i forfatter "Carrier, Vincent"

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    • The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment 

      Carrier, Vincent; Svenning, Mette Marianne; Gründger, Friederike; Niemann, Helge; Dessandier, Pierre-Antoine; Panieri, Giuliana; Kalenitchenko, Dimitri (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-24)
      Cold seeps are characterized by high biomass, which is supported by the microbial oxidation of the available methane by capable microorganisms. The carbon is subsequently transferred to higher trophic levels. South of Svalbard, five geological mounds shaped by the formation of methane gas hydrates, have been recently located. Methane gas seeping activity has been observed on four of them, ...

    • Methane-fuelled biofilms predominantly composed of methanotrophic ANME-1 in Arctic gas hydrate-related sediments 

      Gründger, Friederike; Carrier, Vincent; Svenning, Mette Marianne; Panieri, Giuliana; Vonnahme, Tobias R.; Klasek, Scott; Niemann, Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-05)
      Sedimentary biofilms comprising microbial communities mediating the anaerobic oxidation of methane are rare. Here, we describe two biofilm communities discovered in sediment cores recovered from Arctic cold seep sites (gas hydrate pingos) in the north-western Barents Sea, characterized by steady methane fluxes. We found macroscopically visible biofilms in pockets in the sediment matrix at the depth ...

    • Microbial community structure associated to Arctic cold seeps 

      Carrier, Vincent (Doctoral thesis; Doktorgradsavhandling, 2021-11-29)
      Cold seeps are locations on the seafloor where CH<sub>4</sub> migrates from reservoirs below sediments towards the atmosphere, sustaining thereby a high microbial and macrofaunal biomass and a diversity contrasting from the surrounding seafloor. The oxidation of methane and sulphide are typically the main sources of primary productivity of these ecosystems and have therefore gained a particular ...

    • Seasonal shifts of microbial methane oxidation in Arctic shelf waters above gas seeps 

      Gründger, Friederike; Probandt, David; Knittel, Katrin; Carrier, Vincent; Kalenitchenko, Dimitri; Silyakova, Anna; Serov, Pavel; Ferré, Benedicte; Svenning, Mette Marianne; Niemann, Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-07)
      The Arctic Ocean subseabed holds vast reservoirs of the potent greenhouse gas methane (CH<sub>4</sub>), often seeping into the ocean water column. In a continuously warming ocean as a result of climate change an increase of CH<sub>4</sub> seepage from the seabed is hypothesized. Today, CH<sub>4</sub> is largely retained in the water column due to the activity of methane-oxidizing bacteria (MOB) that ...