About the Authors

Eirill Ager-Wick

Affiliation Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, Oslo, Norway

Ron P. Dirks

Affiliation ZF-screens B.V., Leiden, The Netherlands

Erik Burgerhout

Affiliations ZF-screens B.V., Leiden, The Netherlands, Institute of Biology, Leiden University, Leiden, The Netherlands

Rasoul Nourizadeh-Lillabadi

Affiliation Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, Oslo, Norway

Daniëlle L. de Wijze

Affiliations ZF-screens B.V., Leiden, The Netherlands, Institute of Biology, Leiden University, Leiden, The Netherlands

Herman P. Spaink

Affiliation Institute of Biology, Leiden University, Leiden, The Netherlands

Guido E. E. J. M. van den Thillart

Affiliations ZF-screens B.V., Leiden, The Netherlands, Institute of Biology, Leiden University, Leiden, The Netherlands

Katsumi Tsukamoto

Affiliation Atmosphere and Ocean Research Institute, the University of Tokyo, Kashiwa, Chiba, Tokyo, Japan

Sylvie Dufour

Affiliation Research Unit BOREA, Biology of Aquatic Organisms and Ecosystems, CNRS 7208, Muséum National d´Histoire Naturelle, Paris, France

Finn-Arne Weltzien

Affiliation Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, Oslo, Norway

Christiaan V. Henkel

c.v.henkel@biology.leidenuniv.nl

Affiliations Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, Oslo, Norway, ZF-screens B.V., Leiden, The Netherlands, Institute of Biology, Leiden University, Leiden, The Netherlands

Competing Interests

We have the following interests. HPS and GEEJMvdT are founders and shareholders of ZF-screens B.V. CVH, RPD, and DLdW are (or have been) employees of ZF-screens B.V. ZF-screens B.V. supported this study. Passie voor Vis BV and Nijvis-Holding BV provided farmed eels. There are no patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: EAW RPD EB RNL HPS GEEJMdT KT SD FAW CVH. Performed the experiments: EAW EB RNL DLdW CVH. Analyzed the data: EAW CVH. Wrote the manuscript: EAW RPD EB FAW CVH.