• Development and testing of attachment methods for pop-up satellite archival transmitters in European eel 

      Økland, Finn; Thorstad, Eva Bonsak; Westerberg, Håkan; Aarestrup, Kim; Metcalfe, Julian D. (Peer reviewed, 2013)
      Background: Four methods for attaching pop-up satellite transmitters to European eel were tested in the laboratory by recording long-term tag retention, growth and survival; short-term behavioral responses; and physical ...
    • Downstream migration of Atlantic salmon smolts at Unkelmühle power station and Buisdorf dam in 2016 

      Havn, Torgeir B.; Økland, Finn; Heermann, Lisa; Thorstad, Eva B.; Teichert, Maxim A.K.; Sæther, Stein Are; Tambets, Meelis; Borcherding, Jost (NINA Report;1412, Research report, 2018)
      Havn, T.B., Økland, F., Heermann, L., Thorstad, E.B., Teichert, M.A.K., Sæther, S.A., Tam-bets, M. & Borcherding, J. 2018. Downstream migration of Atlantic salmon smolts at Unkelmühle power station and Buisdorf dam in 2016. ...
    • Downstream migration of European eel at three German hydropower stations 

      Økland, Finn; Teichert, Maxim A.K.; Havn, Torgeir B.; Thorstad, Eva B.; Heermann, Lisa; Sæther, Stein Are; Tambets, Meelis; Borcherding, Jost (NINA Report;1355, Research report, 2017)
      Økland, F., Teichert, M.A.K., Havn, T.B., Thorstad, E.B., Heermann, L., Sæther, S.A., Tambets, M. & Borcherding, J. 2017. Downstream migration of European eel at three German hydropower stations. NINA Report 1355: 53 pages, ...
    • Effects of salmon lice infection on the behaviour of sea trout in the marine phase 

      Gjelland, Karl Øystein; Serra-Llinares, Rosa Maria; Hedger, Richard David; Arechavala-Lopez, Pablo; Nilsen, Rune; Finstad, Bengt; Uglem, Ingebrigt; Skilbrei, Ove Tommy; Bjørn, Pål Arne (Peer reviewed, 2014)
      Salmon lice Lepeophtheirus salmonis Krøyer may affect survival and growth of anadromous salmonids through physiological stress and/or behavioural changes. Using acoustic telemetry tracking, we investigated the behaviour ...
    • Movements of dead fish in rivers 

      Havn, Torgeir Børresen; Økland, Finn; Teichert, Maxim A.K.; Heermann, L.; Borcherding, J; Sæther, Stein Are; Tambets, M.; Diserud, Ola Håvard; Thorstad, Eva Bonsak (Journal article; Peer reviewed, 2017)
      Background: The aim of telemetry studies is often to determine the fate and mortality rates of ish. A moving ish is usually regarded as alive and a long-term stationary ish as dead—and the site where it became stationary ...
    • Recommendations on size and position of surgically and gastrically implanted electronic tags in European silver eel 

      Økland, Finn; Thorstad, Eva Bonsak (Peer reviewed; Journal article, 2013)
      Background: Information on European silver eel Anguilla anguilla anatomy was collected to gain information on limitations on size and placement of electronic tags. Findings: To reduce the eel’s ability to bite its own ...