Passive Acoustic Measurement of Dive Vocal Behavior and Group Size of Blainville's Beaked Whale (Mesoplodon densirostris) in the Tongue of the Ocean (TOTO)

Abstract

The vocal behavior of Blainville's beaked whale (Mesoplodon densirostris) was measured using the bottom-mounted hydrophones of the Atlantic Undersea Test and Evaluation Center (AUTEC) in the Bahamas. The statistics for the vocal durations and gaps within these vocal periods were measured over multiple deep foraging dives. The sizes of foraging groups of M. densirostris were estimated from the dive vocalization durations by applying click rate and detection ratio statistics derived from Woods Hole Oceanographic Institution (WHOI) Digital recording Tags (DTags) to visually verified data collected on the AUTEC range.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2008
Accession Number
ADA519080

Entities

People

  • Amanda Hansen
  • Anna M. Izzi
  • David J. Moretti
  • Jessica Ward
  • Mark A. Johnson
  • Nancy Dimarzio
  • Peter Tyack
  • Ronald Morrissey
  • Susan Jarvis

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Human Systems
  • Sensors

DTIC Thesaurus Topics

  • Abstracts
  • Acoustic Detection
  • Acoustic Measurement
  • Acoustics
  • Animals
  • Data Analysis
  • Detection
  • Detectors
  • Hydrophones
  • Mammals
  • Marine Mammals
  • Observers
  • Oceans
  • Odontocetes
  • Statistics
  • Test And Evaluation
  • Vocalization

Readers

  • Marine Mammal Biology