Experimentally Demonstrated Echolocation in the Amazon River Porpoise, Inia Geoffrensis (Blainville)

Abstract

Echolocation and related behavior in the Amazon River porpoise Inia geoffrensis was investigated to demonstrate biological sonar within the context of operant conditioning. It was found that the Inia's click train ranged from 25 to 200 kHz; major energy was centered approximately at 100 kHz. The longest periods of silence for the Inia were 8 sec. Corollary behavior exhibited during the performance of the conditioned task indicated a two-step sonic appraisal of the stimulus condition.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1970
Accession Number
AD0719897

Entities

People

  • A. E. Murchison
  • R. H. Penner

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustics
  • Amazon River
  • Analyzers
  • Animals
  • Biosonar
  • Control Panels
  • Detection
  • Fish
  • Frequency
  • Fresh Water
  • Materials
  • New York
  • Porpoises
  • Respiratory Physiological Processes
  • Spectrum Analyzers
  • Target Detection

Fields of Study

  • Biology
  • Psychology

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Marine Mammal Biology
  • Neuroscience