Density-dependent refuge use among over-wintering wild Atlantic salmon juveniles

Armstrong, J. D. and Griffiths, Sian Wyn ORCID: https://orcid.org/0000-0001-6348-7352 2001. Density-dependent refuge use among over-wintering wild Atlantic salmon juveniles. Journal of Fish Biology 58 (6) , pp. 1524-1530. 10.1006/jfbi.2001.1554

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Abstract

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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Biosciences
Subjects:	Q Science > Q Science (General)
Uncontrolled Keywords:	Salmo salar; sheltering behaviour; density dependence; winter refugia; nocturnal behaviour; competition.
Publisher:	Wiley
ISSN:	0022-1112
Last Modified:	27 Oct 2022 08:33
URI:	https://orca.cardiff.ac.uk/id/eprint/62629

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