The volitional travel speed varies with reproductive state in mature female brown trout Salmo trutta

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Abstract:

This study tested the effect of reproduction on the volitional travel speed of mature female brown trout Salmo trutta L. The downstream travel speed in the pre-spawning state was 0·25 m s−1 (95% CI : 0·19, 0·34) while it increased significantly to 0·65 m s−1 (95% CI: 0·49, 0·87) in the post-spawning state. The results suggest state-dependent travel speed in S. trutta.

Keywords: anadromy; behaviour; cost of reproduction; locomotion; locomotor performance; migration cost

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1095-8649.2009.02310.x

Affiliations: 1: Technical University of Denmark, National Institute of Aquatic Resources, Freshwater Fisheries, Vejlsøvej 39, DK-8600 Silkeborg, Denmark 2: University of Aarhus, National Environmental Research Institute, Frederiksborgvej 399, DK-4000 Roskilde, Denmark 3: Technical University of Denmark, DTU Informatics, Section for Statistics, Richard Petersens Plads, Building 321, DK-2800 Lyngby, Denmark

Publication date: September 1, 2009

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