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Beaked whale auditory evoked potential hearing measurements

Authors
Publisher
Springer-Verlag.
Publication Date
Keywords
  • Beaked Whales
  • Sonar
  • Auditory Perception --Physiology
  • Marine Animals --Vocalization
  • Echolocation (Physiology)

Abstract

Several mass strandings of beaked whales have recently been correlated with military exercises involving mid-frequency sonar highlighting unknowns regarding hearing sensitivity in these species. We report the hearing abilities of a stranded juvenile beaked whale (Mesoplodon europaeus) measured with auditory evoked potentials. The beaked whale’s modulation rate transfer function (MRTF) measured with a 40-kHz carrier showed responses up to an 1,800 Hz amplitude modulation (AM) rate.

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