Ruthsatz, Katharina
Dausmann, Kathrin H.
Reinhardt, Steffen
Robinson, Tom
Sabatino, Nikita M.
Peck, Myron A.
Glos, Julian
Article History
Received: 24 August 2019
Revised: 3 February 2020
Accepted: 15 February 2020
First Online: 6 March 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: The authors have no ethical conflicts to disclose. The experiments were conducted under permission from the <i>Amt für Verbraucherschutz, Lebensmittelsicherheit, und Veterinärwesen</i> in Hamburg, Germany (Billstraße 80, D- 20539 Hamburg; Gz. V1305/591-00.33, Nr. 03/16). The permission for extraction of spawn of the Common frog (<i>Rana temporaria</i>) was granted by the <i>Amt für Naturschutz, Grünplanung und Energie</i> (Neuenfelder Straße 19, D- 21109 Hamburg; Gz. NGE3102/897.20-90).