1. Sea Mammal Research Company (SEAMARCO) 1 , Julianalaan 46, 3843 CC Harderwijk, The Netherlands
2. Department of Biological Sciences, University of New Brunswick 2 , PO Box 5050, Saint John, New Brunswick, E2L 4L5, Canada
3. Cluster of Excellence “Hearing4all” and Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg 3 , 26111 Oldenburg, Germany