Browsing NTNU Open by Author "Knutsen, Øyvind"

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    • Coming soon to a fjord near you: future jellyfish scenarios in a changing climate 

      Tiller, Rachel Gjelsvik; Borgersen, Åshild Løvås; Knutsen, Øyvind; Bailey, Jennifer L.; Bjelland, Hans Vanhauwaert; Mork, Jarle; Eisenhauer, Lionel; Liu, Yajie (Journal article; Peer reviewed, 2016)
      Over the last decades, a dense population of the deep-sea/oceanic scyphozoan jellyfish Periphylla periphylla has established itself as top predator in the Trondheimsfjord in Norway, which has caused the traditional fisheries ...

    • Extent and ecological importance of escape through spawning in sea-cages for Atlantic cod 

      Uglem, Ingebrigt; Knutsen, Øyvind; Kjesbu, Olav Sigurd; Hansen, Øyvind J; Mork, Jarle; Bjørn, Pål Arne; Varne, Rebekka; Nilsen, Rune; Ellingsen, Ingrid H.; Dempster, Timothy David (Journal article; Peer reviewed, 2012)
      The culture of certain fish species to sizes at which they can reproduce has led to the escape of fertilised eggs or ‘escape through spawning’. To investigate the extent and ecological importance of spawning in sea-cages ...

    • Modellering av strøm og vannslektskap i Sør-Troms (Malangen-Sør. 

      Slagstad, Dag; Knutsen, Øyvind (Research report, 2012)
      Prosjektet "Strømmodellering av området Malangen Sør" har som hovedmålsetning å etablere en høyoppløst hydrodynamisk modell for Sør-Troms, simulere et utvalgt år for å få en forståelse av strømningsforholdene i området. I ...

    • Tracking jellyfish swarm origins using a combined oceanographic-genetic-citizen science approach 

      Edelist, Dor; Knutsen, Øyvind; Ellingsen, Ingrid H.; Majaneva, Sanna; Aberle-Malzahn, Nicole; Dror, Hila; Angel, Dror L. (Peer reviewed; Journal article, 2022)
      Biological invasions of jellyfish may critically affect ecosystems and ecosystem services, yet their complex life cycle makes tracking their origins and dispersal vectors a challenging task. Here we combine citizen science ...