Effect of Broadband Nature of Marine Mammal Echolocation Clicks on Click-Based Population Density Estimates

Abstract

The long-term aim of the project is to support passive acoustic monitoring (PAM) of Odontecetes. This project aims to demonstrate how the detection process of broadband clicks can be modeled for different marine mammal species and assess the magnitude of error on the estimated density due to various commonly used simplifying assumptions. Our main purposes are to quantify the bias in the population density estimate for selected species and detector due to use of the narrow band approximation in the computed propagation loss, and to understand the factors affecting the magnitude of this bias to enable extrapolation to other species and detectors.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2014
Accession Number
ADA616082

Entities

People

  • Len Thomas
  • Peter Tyack

Organizations

  • University of St Andrews

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bandwidth
  • Biosonar
  • Broadband
  • Detection
  • Detectors
  • Energy Bands
  • Frequency
  • Mammals
  • Marine Mammals
  • Odontocetes
  • Passive Sonar
  • Sonar
  • Universities

Fields of Study

  • Environmental science

Readers

  • Marine Mammal Biology
  • Regression Analysis.