About the Authors

Elvira Mächler

Affiliations Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland, Department of Biology, ETH Zurich, CHN, Zürich, Switzerland

Florian Altermatt

florian.altermatt@eawag.ch

Affiliation Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EM FA. Performed the experiments: EM FA. Analyzed the data: EM FA. Contributed reagents/materials/analysis tools: EM FA. Wrote the paper: EM FA.