Bioacoustic Absorption Spectroscopy (ASIAEX)

Abstract

The long-term goal is to demonstrate the potential of bioacoustic absorption spectroscopy for tomographic mapping of the bioacoustic parameters of fish with swim bladders in shallow water in the context of the ONR ASIAEX Program. The objective is to develop a propagation model that accounts for the effects of bioacoustic absorptivity on transmission loss in shallow water at frequencies between 0.2 and 10.0 kHz. Develop a bioacoustic model that accounts for the resonance frequencies of absorption lines, which are due to dispersed pelagic fish, and schools of pelagic fish with swim bladders. Demonstrate consistency between absorptivity and echo sounder based estimates of number densities.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2000
Accession Number
ADA610200

Entities

People

  • Orest Diachok

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Autonomy

DTIC Thesaurus Topics

  • Absorption
  • Acoustics
  • Detection
  • East China Sea
  • Fish
  • Frequency
  • Measurement
  • Military Research
  • Oceanography
  • Oceans
  • Scattering
  • Shallow Water
  • Sonar
  • Spectroscopy
  • Swim Bladders
  • Transmission Loss
  • Yellow Sea

Fields of Study

  • Physics

Readers

  • Marine Mammal Biology
  • Optical Physics and Photonics.
  • Wave Propagation and Nonlinear Chaotic Dynamics.