A Technique for Rapidly Assessing the Hearing of the Bottlenosed Porpoise, 'Tursiops truncatus'.

Abstract

Brain-wave activity was used to determine approximate auditory 'threshold' levels for the unanesthetized bottlenosed porpoise (Tursiops truncatus) using a specially designed artifact inhibiting system. This technique can now be applied to rapidly (within 4 to 6 hours) estimate the hearing ability of T. truncatus over a frequency range of 5 kHz to 200 kHz to 200 kHz and could be employed to screen the hearing capabilities of other marine mammals. All equipment is portable and can be used in the field as well as in the laboratory. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1976
Accession Number
ADA029178

Entities

People

  • R. L. Seeley
  • Sam H Ridgway
  • W. F. Flanigan Jr.

Organizations

  • Naval Undersea Warfare Center

Tags

DTIC Thesaurus Topics

  • Anatomy
  • Animals
  • Artifacts
  • Biological Sciences
  • Brain Waves
  • Cells (Biology)
  • Cetaceans
  • Eukaryotes
  • Frequency
  • Laboratory Equipment
  • Mammals
  • Marine Mammals
  • Odontocetes
  • Porpoises

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Marine Mammal Biology
  • Systems Analysis and Design