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

Armstrong, J. D. and Griffiths, Sian Wyn 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: 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: 04 Jun 2017 06:36
URI: http://orca-mwe.cf.ac.uk/id/eprint/62629

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