Post-release and pre-spawning behaviour of simulated escaped adult rainbow trout Oncorhynhus mykiss in Lake ovre Fryken, Sweden

Abstract

Using radio telemetry, the present study simulated the escape of 48 adult rainbow trout Oncorhynchus mykiss from a net-cage fish farm in the Lake ovre Fryken, Sweden. The post-release dispersal of O. mykiss was fast, showed long-range dispersal behaviour, low winter survival and lacked the ability to find suitable spawning habitats. Thus, the present study suggested that reproducing for the first time may be an obstacle to the establishment of escaped farmed O. mykiss.

Keywords

escape; fish farm; movement behaviour; non-native; radio telemetry; spawning habitat

Published in

Journal of Fish Biology
2009, Volume: 74, number: 3, pages: 691-698 Publisher: WILEY-BLACKWELL PUBLISHING, INC

SLU Authors

• Lindberg, Magnus

  • Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
    

• Rivinoja, Peter

  • Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
    

• Eriksson, Lars-Ove

  • Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
    

• Alanärä, Anders

  • Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Fish and Aquacultural Science
Environmental Sciences related to Agriculture and Land-use


Publication identifier

DOI: https://doi.org/10.1111/j.1095-8649.2008.02149.x

Permanent link to this page (URI)

https://res.slu.se/id/publ/50136