Age effects on diel activity patterns of juvenile Atlantic salmon: parr are more nocturnal than young‐of‐the‐year |
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| Authors: | I. Imre and D. Boisclair |
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| Affiliation: | Département de Sciences Biologiques, Universitéde Montréal, C.P. 6128, Succursale Centre‐Ville, Montréal, Québec H3C 3J7 Canada |
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| Abstract: | In the summer Atlantic salmon Salmo salar parr were predominantly active at night, while young‐of‐the‐year were equally active during day and at night. These findings are consistent with the prediction that larger animals should be less willing to risk predation for a certain increase in size than smaller animals. |
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| Keywords: | diurnal habitat use nocturnal density population assessment Salmo salar |
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