Aerial low-frequency hearing in captive and free-ranging harbour seals (Phoca vitulina) measured using auditory brainstem responses

K. Lucke*, Gordon D. Hastie, Kerstin Ternes, Bernie McConnell, Simon Moss, Deborah J.F. Russell, Heike Weber, Vincent M. Janik

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

The hearing sensitivity of 18 free-ranging and 10 captive harbour seals (Phoca vitulina) to aerial sounds was measured in the presence of typical environmental noise through auditory brainstem response measurements. A focus was put on the comparative hearing sensitivity at low frequencies. Low- and mid-frequency thresholds appeared to be elevated in both captive and free-ranging seals, but this is likely due to masking effects and limitations of the methodology used. The data also showed individual variability in hearing sensitivity with probable age-related hearing loss found in two old harbour seals. These results suggest that the acoustic sensitivity of free-ranging animals was not negatively affected by the soundscape they experienced in the wild.

Original languageEnglish
Pages (from-to)859-868
JournalJournal of Comparative Physiology A-Sensory Neural and Behavioral Physiology
Volume202
Issue number12
DOIs
Publication statusPublished - 2016

Keywords

  • ABR
  • Harbour seal
  • Hearing
  • Low frequency
  • Phoca vitulina

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