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Toothed whale auditory brainstem responses measured with a non-invasive, on-animal tag

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Adam B. Smith, Peter T. Madsen, Mark Johnson, Peter Tyack, Magnus Wahlberg

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Empirical measurements of odontocete hearing are limited to captive individuals, constituting a fraction of species across the suborder. Data from more species could be available if such measurements were collected from unrestrained animals in the wild. This study investigated whether electrophysiological hearing data could be recorded from a trained harbor porpoise (Phocoena phocoena) using a non-invasive, animal-attached tag. The results demonstrate that auditory brainstem responses to external and self-generated stimuli can be measured from a stationary odontocete using an animal-attached recorder. With additional development, tag-based electrophysiological platforms may facilitate the collection of hearing data from freely swimming odontocetes in the wild.


Original languageEnglish
Article number091201
Number of pages8
JournalJASA Express Letters
Issue number9
Early online date28 Sep 2021
Publication statusPublished - Sep 2021

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