Density-dependent refuge use among over-wintering wild Atlantic salmon juveniles
Sheltering behaviour of wild juvenile Atlantic salmon in an indoor stream was found to be density dependent; the proportion of fish sheltering decreased significantly with increasing population density. The mean number of fish occupying refugia was ≤1.5 fish per refuge even at very high densities (p...
Published in: | Journal of Fish Biology |
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Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Wiley
2001
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Subjects: | |
Online Access: | https://orca.cardiff.ac.uk/id/eprint/62629/ https://doi.org/10.1006/jfbi.2001.1554 |
Summary: | Sheltering behaviour of wild juvenile Atlantic salmon in an indoor stream was found to be density dependent; the proportion of fish sheltering decreased significantly with increasing population density. The mean number of fish occupying refugia was ≤1.5 fish per refuge even at very high densities (potentially 5 fish per shelter). These results suggest that shelter availability has potentially important consequences for the carrying capacity for natural populations of salmon in streams. |
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