1.
Hear Res
; 381: 107774, 2019 09 15.
Article
in English
| MEDLINE
| ID: mdl-31408801
ABSTRACT
As of yet there is no literature record of the hearing range of the Eurasian otter (Lutra lutra, L. 1758), a key species for natural conservation efforts in Europe. We recorded in-air pure tone hearing thresholds of anaesthetized otters using auditory brainstem responses (ABR) and report the results of the Eurasian otter. The recorded potentials showed the typical mammalian auditory brainstem response consisting of 5 distinct positive peaks during the first 10â¯ms after stimulus onset. At 80â¯dB SPL the hearing ranged from around 200â¯Hz to 32â¯kHz, with lowest thresholds around 4â¯kHz.