• An Arctic natural oil seep investigated from space to the seafloor 

      Panieri, Giuliana; Argentino, Claudio; Ramalho, Sofia P.; Vulcano, Francesca; Savini, Alessandra; Fallati, Luca; Brekke, Trond; Galimberti, Giulia; Riva, Federica; Balsa, João; Eilertsen, Mari Heggernes; Stokke, Runar; Steen, Ida Helene; Sahy, Diana; Kalenitchenko, Dimitri Stanislas Desire; Bünz, Stefan; Mattingsdal, Rune (Journal article; Peer reviewed, 2023)
      Due 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 ...
    • A chemosynthetic weed: the tubeworm Sclerolinum contortum is a bipolar, cosmopolitan species 

      Georgieva, Magdalena N.; Wiklund, Helena; Bell, James B; Eilertsen, Mari Heggernes; Mills, Rachel A; Little, Crispin T S; Glover, Adrian G. (Peer reviewed; Journal article, 2015-12-14)
      Background Sclerolinum (Annelida: Siboglinidae) is a genus of small, wiry deep-sea tubeworms that depend on an endosymbiosis with chemosynthetic bacteria for their nutrition, notable for their ability to colonise a multitude ...
    • Diversity, habitat endemicity and trophic ecology of the fauna of Loki’s Castle vent field on the Arctic Mid-Ocean Ridge 

      Eilertsen, Mari Heggernes; Kongsrud, Jon Anders; Tandberg, Anne Helene S.; Alvestad, Tom; Budaeva, Nataliya; Martell, Luis; Ramalho, Sofia P.; Falkenhaug, Tone; Huys, Rony; Oug, Eivind; Bakken, Torkild; Høisæter, Tore; Rauch, Cessa; Carvalho, Francisca Maria Correia de; Savchenko, Alexandra; Ulvatn, Tone; Kongshavn, Katrine; Berntsen, Cassandra Mari; Olsen, Bernt Rydland; Pedersen, Rolf B. (Journal article; Peer reviewed, 2024)
      Loki’s Castle Vent Field (LCVF, 2300 m) was discovered in 2008 and represents the first black-smoker vent field discovered on the Arctic Mid-Ocean Ridge (AMOR). However, a comprehensive faunal inventory of the LCVF has not ...
    • Do ampharetids take sedimented steps between vents and seeps? Phylogeny and habitat-use of Ampharetidae (Annelida, Terebelliformia) in chemosynthesis-based ecosystems 

      Eilertsen, Mari Heggernes; Kongsrud, Jon Anders; Alvestad, Tom; Stiller, Josefin; Rouse, Greg W; Rapp, Hans Tore (Peer reviewed; Journal article, 2017-10-31)
      Background: A range of higher animal taxa are shared across various chemosynthesis-based ecosystems (CBEs), which demonstrates the evolutionary link between these habitats, but on a global scale the number of species ...
    • The emerging picture of a diverse deep Arctic Ocean seafloor: From habitats to ecosystems 

      Ramirez-Llodra, Eva; Meyer, Heidi Kristina; Bluhm, Bodil Annikki Ulla Barbro; Brix, Saskia; Brandt, Angelika; Dannheim, Jennifer; Downey, Rachel V.; Egilsdottir, Hrönn; Eilertsen, Mari Heggernes; Gaudron, Sylvie M.; Gebruk, Anna; Golikov, Alexey V.; Hasemann, Christiane; Hilário, Ana; Jørgensen, Lis Lindal; Kaiser, Stefanie; Korfhage, Severin A.; Kürzel, Karlotta; Lörz, Anne-Nina; Buhl-Mortensen, Pål; Olafsdottir, Steinunn H.; Piepenburg, Dieter; Purser, Autun; Ribeiro, Pedro A; Sen, Arunima; Soltwedel, Thomas; Stratmann, Tanja; Steger, Jan; Svavarsson, Jörundur; Tandberg, Anne Helene S.; Taylor, James; Theising, Franziska I; Uhlir, Carolin; Waller, Rhian G.; Xavier, Joana R.; Zhulay, Irina; Saaedi, Hanieh (Journal article; Peer reviewed, 2024)
      Interest in the deep Arctic Ocean is rapidly increasing from governments, policy makers, industry, researchers, and conservation groups, accentuated by the growing accessibility of this remote region by surface vessel ...
    • Evolutionary history, connectivity and habitat-use of annelids from deep-sea chemosynthesis-based ecosystems, with an emphasis on the Arctic mid-Ocean Ridge and the Nordic Seas 

      Eilertsen, Mari Heggernes (Doctoral thesis, 2018-03-16)
      The enigmatic fauna of chemosynthesis-based ecosystems (CBEs), i.e. hydrothermal vents, cold seeps and organic falls, has been the subject of intensive research over the last decades. However, there are still many aspects ...
    • Genetic connectivity from the Arctic to the Antarctic: Sclerolinum contortum and Nicomache lokii (Annelida) are both widespread in reducing environments 

      Eilertsen, Mari Heggernes; Georgieva, Magdalena N.; Kongsrud, Jon Anders; Linse, Katrin; Wiklund, Helena; Glover, Adrian G.; Rapp, Hans Tore (Peer reviewed; Journal article, 2018-03-19)
      The paradigm of large geographic ranges in the deep sea has been challenged by genetic studies, which often reveal putatively widespread species to be several taxa with more restricted ranges. Recently, a phylogeographic ...
    • Hot Vents Beneath an Icy Ocean: The Aurora Vent Field, Gakkel Ridge, Revealed 

      Ramirez-Llodra, Eva; Argentino, Claudio; Baker, Maria; Boetius, Antje; Costa, Carolina; Dahle, Håkon; Denny, Emily Maria; Dessandier, Pierre-Antoine; Eilertsen, Mari Heggernes; Ferré, Benedicte; German, Cristopher R.; Hand, Kevin; Hilário, Ana; Hislop, Lawrence; Jamieson, John W.; Kalenitchenko, Dimitri; Mall, Achim; Panieri, Giuliana; Purser, Autun; Ramalho, Sofia P.; Reeves, Eoghan; Rolley, Leighton; Pereira, Samuel; de Azevedo Ribeiro, Pedro Miguel; Sert, Muhammed Fatih; Steen, Ida Helene; Stetzler, Marie Helene Paula; Stokke, Runar; Victorero, Lissette; Vulcano, Francesca; Vågenes, Stig; Waghorn, Kate Alyse; Bünz, Stefan (Journal article; Peer reviewed, 2022)
      Evidence of hydrothermal venting on the ultra-slow spreading Gakkel Ridge in the Central Arctic Ocean has been available since 2001, with first visual evidence of black smokers on the Aurora Vent Field obtained in 2014. ...
    • New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field 

      Kongsrud, Jon Anders; Eilertsen, Mari Heggernes; Alvestad, Tom; Kongshavn, Katrine; Rapp, Hans Tore (Peer reviewed; Journal article, 2016-03)
      Ampharetid polychaetes adapted to live in chemosynthetic environments are well known from the deep Pacific and Atlantic Oceans, but to date no such species have been reported from the Arctic Ocean. Here, we describe two ...
    • A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea 

      Eilertsen, Mari Heggernes; Dahlgren, Thomas Gunnar; Rapp, Hans Tore (Journal article; Peer reviewed, 2020)
      Large parcels of organic matter in the deep sea, such as whale carcasses, harbor a very specialized fauna, most famously the bone-eating worms in the genus Osedax (Annelida, Siboglinidae). Although Osedax was first described ...
    • Speciation in the dark: Diversification and biogeography of the deep-sea gastropod genus Scaphander in the Atlantic Ocean 

      Eilertsen, Mari Heggernes; Malaquias, Manuel Antonio E. (Peer reviewed; Journal article, 2015-01-30)
      Aim The aim of this work was to improve understanding about the mode, geography and tempo of diversification in deep-sea organisms, using a time-calibrated molecular phylogeny of the heterobranch gastropod genus Scaphander. ...