• Changes in swimming depths of Atlantic salmon Salmo salar post-smolts relative to light intensity 

      Davidsen, Jan Grimsrud; Plantalech Manel-la, Nuria; Thorstad, E.B; Rikardsen, Audun H.; Økland, F.; Sivertsgård, Rolf; Finstad, B; McKinley, R.S; Diserud, O. H. (Journal article; Tidsskriftartikkel; Peer reviewed, 2008-06-22)
      Eight hatchery-reared Atlantic salmon Salmo salar post-smolts, implanted with acoustic depth sensing transmitters and manually tracked for 5-12 h in the Hardangerfjord (Norway), spent most of their time (49-99%) at 1-3 m depth during the day, whereas four of seven fish tracked were found close (<0.5 m) to the surface at night, with a strong negative cross-correlation between general swimming depth ...