Blar i Published in cooperation with others på forfatter "Johnsen, Geir Helge"
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Increased growth rate in Atlantic salmon parr by using a two-colour diet
Holm, Jens Christian; Jakobsen, Per J.; Johnsen, Geir Helge (ICES CM Documents;1985/F:17, Working paper, 1985)Fishes hunting by sight are known to pay a cost of confusion when faced with high densities of uniform food particles. In such instances, awareness of other stimuli reduces feeding efficiency such that the fishes prefer ...