• Assessment of risk and risk-reducing measures related to the introduction and dispersal of the invasive alien carpet tunicate Didemnum vexillum in Norway 

      Järnegren, Johanna; Gulliksen, Bjørn; Husa, Vivian; Malmstrøm, Martin; Oug, Eivind; Berg, Paul Ragnar; Bryn, Anders; Geange, Sonya Rita; Hindar, Kjetil; Hole, Lars Robert; Kausrud, Kyrre Linné; Kirkendall, Lawrence Richard; Nielsen, Anders; Sandercock, Brett Kevin; Thorstad, Eva Bonsak; Velle, Gaute (Peer reviewed; Journal article, 2023)
      Didemnum vexillum is colonial sea squirt, a marine species which originates from the northwest Pacific; it was first recorded in Norway in November 2020. Didemnum vexillum is an alien species, meaning that it is a species ...
    • Kartlegging av fremmede marine arter i Hordaland 

      Husa, Vivian; Heggøy, Erling; Sjøtun, Kjersti; Agnalt, Ann-Lisbeth; Johansen, Per-Otto; Glenner, Henrik; Hatlen, Kristin (DN-utredning;2-2012, Research report, 2012-03)
      The method Rapid Coastal Survey was applied in a pilot project in the county of Hordaland in autumn 2010. The abundance of 21 introduced target species was investigated in 32 marinas in the area. No new species to ...
    • Kartlegging av fremmede marine arter i Rogaland 

      Husa, Vivian; Heggøy, Erling; Agnalt, Ann-Lisbeth; Svensen, Rudolf; Rokkan-Iversen, Kriss; Alvestad, Tom (DN-utredning;3-2012, Research report, 2012-03)
      The method Rapid Coastal Survey was applied in 36 marinas in the county of Rogaland during five days in august 2010. 27 introduced species were targeted in this investigation. No new species to Norway was found, but ...