ABSTRACT
A pilot study with Atlantic salmon, Salmo salar, in a submergible cage has been carried out. The purpose of the study was to investigate the effects of submersion on swimming behaviour and mortality. A total of 100 salmon were kept submerged in a 600 m3 closed cage at a depth of 20–26 meter for 42 days. During this period swimming behaviour appeared normal and all the fish survived. The results indicate that salmon may survive well for a prolonged period in a submerged cage system, and the results are discussed in view of previous works.
