1. Department of Ecology, Evolution & Marine Biology, University of California Santa Barbara, Santa Barbara, California, USA
2. Section for Freshwater Fisheries and Ecology, National Institute of Aquatic Resources, Technical University of Denmark, Silkeborg, Denmark
3. Fisheries and Oceans Canada, Cooperative Resource Management Institute, School of Resource and Environmental Management, Simon Fraser University, Burnaby, British Columbia, Canada
4. Department of Biology, Carleton University, Ottawa, Ontario, Canada
5. Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada