• A review of acoustic telemetry in Europe and the need for a regional aquatic telemetry network 

      Abecasis, David; Steckenreuter, Andre; Reubens, Jan; Aarestrup, Kim; Alós, Josep; Badalamenti, Fabio; Bajona, Lenore; Boylan, Patrick; Deneudt, Klaas; Greenberg, Larry; Brevé, Niels; Hernández, Francisco; Humphries, Nick; Meyer, Carl; Sims, David; Thorstad, Eva Bonsak; Walker, Alan M.; Whoriskey, Fred; Afonso, Pedro (Journal article; Peer reviewed, 2018)
      Background: Globally, there are a large and growing number of researchers using biotelemetry as a tool to study aquatic animals. In Europe, this community lacks a formal network structure. The aim of this study is to review ...
    • 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 ...
    • In situ measurement of salinity during seaward migration of Atlantic salmon post‑smolts using acoustic transmitters with data‑storage capabilities and conventional acoustic transmitters 

      Mitamura, Hiromichi; Thorstad, Eva Bonsak; Uglem, Ingebrigt; Økland, Finn (Journal article; Peer reviewed, 2017)
      Background: Development of miniature acoustic transmitters and data-storage tags has provided new insights into ecology of free-ranging aquatic animals. In this study, we used a data-storage-type and a conventional acoustic ...
    • Long‑term PIT tag retention rates in Atlantic salmon (Salmo salar) 

      Foldvik, Anders; Kvingedal, Eli (Journal article; Peer reviewed, 2018)
      Background: Passive integrated transponder (PIT) tags are widely used in studies of various aspects of fish survival, movement and behaviour. Quality of such studies depends on the fish retaining the tags over the study ...
    • Movement and heart rate in the Scandinavian brown bear (Ursus arctos) 

      Blanchet, Leslie; Fuchs, Boris; Støen, Ole-Gunnar; Ordiz, Andre; Laske, Timothy G.; Arnemo, Jon Martin; Evans, Alina (Journal article, 2019)
      Background: Understanding animal movement facilitates better management and conservation. The link between movement and physiology holds clues to the basic drivers of animal behaviours. In bears, heart rate increases with ...
    • 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 ...
    • Revealing the full ocean migration of individual Atlantic salmon 

      Strøm, John Fredrik; Thorstad, Eva Bonsak; Hedger, Richard David; Rikardsen, Audun H. (Journal article; Peer reviewed, 2018)
      Knowledge of the complete horizontal migration and vertical movements of Atlantic salmon (Salmo salar L.) during the marine phase is important for understanding the link between individual processes and population recruitment. ...
    • The use of external electronic tags on fish: an evaluation of tag retention and tagging effects 

      Jepsen, Niels; Thorstad, Eva Bonsak; Havn, Torgeir Børresen; Lucas, Martyn C. (Peer reviewed; Journal article, 2015)
      External tagging of fish with electronic tags has been used for decades for a wide range of marine and freshwater species. In the early years of fish telemetry research, it was the most commonly used attachment method, ...
    • Tracking animals in freshwater with electronic tags: past, present and future 

      Cooke, Steven J.; Midwood, Jonathan D.; Thiem, Jason D.; Klimley, Peter; Lucas, Martyn C.; Thorstad, Eva Bonsak; Eiler, John H.; Holbrook, Chris; Ebner, Brendan C (Peer reviewed; Journal article, 2013)
      Considerable technical developments over the past half century have enabled widespread application of electronic tags to the study of animals in the wild, including in freshwater environments. We review the constraints ...