Acknowledgements
This study was financed by the Innovation Fund Denmark through the
project “DNA-based species identification in bulk tissue samples for
environmental monitoring” (grant number 1355-00144B) and Amphi Consult
ApS. The authors wish to thank biologist Per Gørtz (Laboratory of Fish
Ecology; Fiskeøkologisk Laboratorium, Helsingør, Denmark) for his help
with sampling and analysing the water stream samples.