Investigating the threat of non-native North American signal crayfish (Pacifastacus leniusculus) to salmon redds

Gladman, Z.F., Adams, C.E. , Bean, C.W., Long, J. and Yeomans, W.E. (2011) Investigating the threat of non-native North American signal crayfish (Pacifastacus leniusculus) to salmon redds. Aquatic Conservation: Marine and Freshwater Ecosystems, 22(1), pp. 134-137. (doi:10.1002/aqc.1238)

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Publisher's URL: http://dx.doi.org/10.1002/aqc.1238

Abstract

<b>1.</b> To test their ability to detect and excavate Atlantic salmon eggs (Salmo salar) in an artificial redd, North American signal crayfish (Pacifastacus leniusculus) were exposed to three successive experimental treatments.<p></p> <b>2.</b> Crayfish successfully detected and excavated buried fish but were unable to detect buried salmon eggs, despite significant opportunity.<p></p> <b>3.</b> The results strongly suggest that signal crayfish do not present a threat to Atlantic salmon via egg predation. In the wild, however, the vulnerability of redds may vary according to a range of biotic and abiotic factors.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gladman, Dr Zara and Adams, Professor Colin and Yeomans, Dr William
Authors: Gladman, Z.F., Adams, C.E., Bean, C.W., Long, J., and Yeomans, W.E.
College/School:College of Medical Veterinary and Life Sciences > Institute of Biodiversity Animal Health and Comparative Medicine
College of Medical Veterinary and Life Sciences > School of Life Sciences
Journal Name:Aquatic Conservation: Marine and Freshwater Ecosystems
Publisher:John Wiley & Sons Ltd.
ISSN:1052-7613
ISSN (Online):1099-0755
Published Online:24 November 2011

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