About the Authors

Alexander Kotrschal

alexander.kotrschal@ebc.uu.se

Affiliation Department of Animal Ecology, Evolutionary Biology Centre, University of Uppsala, Uppsala, Sweden

Katja Räsänen

Affiliation Department of Aquatic Ecology, Eawag and Institute of Integrative Biology, ETH Zürich, Zürich, Switzerland

Bjarni K. Kristjánsson

Affiliation Department of Aquaculture and Fish Biology, Hólar University College, Hólar, Iceland

Mike Senn

Affiliation Department of Aquatic Ecology, Eawag and Institute of Integrative Biology, ETH Zürich, Zürich, Switzerland

Niclas Kolm

Affiliation Department of Animal Ecology, Evolutionary Biology Centre, University of Uppsala, Uppsala, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AK MS BKK KR NK. Performed the experiments: AK MS. Analyzed the data: AK. Contributed reagents/materials/analysis tools: NK KR BKK. Wrote the paper: AK NK.