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Estimates of survival of stream-dwelling brown trout using
Authors:E. M. Olsen   L. A. Vollestad
Affiliation:Division of Zoology, Department of Biology, University of Oslo, P.O. Box 1050 Blindern, N-0316 Oslo, Norway
Abstract:
Estimated monthly apparent survival of stream-dwelling brown trout Salmo trutta in south-east Norway was higher in winter than in summer, and lower in Alpine bullhead Cottus poecilopus sites than in allopatric sites. Apparent survival denotes true survival x local site fidelity. Emigration may also explain differences in apparent survival. All brown trout included in this Study were at least 1 year old.
Keywords:brown trout    mark-recapture    Alpine bullhead    survival    summer    winter
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