Testing the odontocete acoustic prey debilitation hypothesis: No stunning results Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/ng451k14r

Copyright 2006 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in J. Acoust. Soc. Am., 120(2): 1118-1123, 2006, DOI: 10.1121/1. 2211508, and and may be found at  http://link.aip.org/link/?JAS/120/1118. Permalink at  http://dx.doi.org/10.1121/1.2211508.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • The hypothesis that sounds produced by odontocetes can debilitate fish was examined. The effects of simulated odontocete pulsed signals on three species of fish commonly preyed on by odontocetes were examined, exposing three individuals of each species as well as groups of four fish to a high-frequency click of a bottlenose dolphin [peak frequency (PF) 120 kHz, 213-dB peak-to-peak exposure level (EL)], a midfrequency click modeled after a killer whale’s signal (PF 55 kHz, 208-dB EL), and a low-frequency click (PF 18 kHz, 193-dB EL). Fish were held in a 50-cm diameter net enclosure immediately in front of a transducer where their swimming behavior, orientation, and balance were observed with two video cameras. Clicks were presented at constant rates and in graded sweeps simulating a foraging dolphin’s “terminal buzz.” No measurable change in behavior was observed in any of the fish for any signal type or pulse modulation rate, despite the fact that clicks were at or near the maximum source levels recorded for odontocetes. Based on the results, the hypothesis that acoustic signals of odontocetes alone can disorient or “stun” prey cannot be supported.
Resource Type
Date Available
Date Issued
Citation
  • J. Acoust. Soc. Am. 120 (2), 1118-1123, DOI: 10.1121/1.2211508
Keyword
Table of Contents
  • I. Introduction II. Methods A. Study area B. Subjects C. Experimental setup D. Stimuli E. Behavioral parameters F. Statistics III. Results IV. Discussion V. Acknowledgements
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Kelly Benoit-Bird(kbenoit@coas.oregonstate.edu) on 2009-09-24T17:23:17Z (GMT) No. of bitstreams: 1 JAcoustSociety2006_NoStunningResults.pdf: 136886 bytes, checksum: 73dac4eafd38d5de006ba564d0036c67 (MD5)
  • description.provenance : Submitted by Linda Lamb (llamb@coas.oregonstate.edu) on 2009-09-24T17:19:10Z No. of bitstreams: 1 JAcoustSociety2006_NoStunningResults.pdf: 136886 bytes, checksum: 73dac4eafd38d5de006ba564d0036c67 (MD5)
  • description.provenance : Made available in DSpace on 2009-09-24T17:23:17Z (GMT). No. of bitstreams: 1 JAcoustSociety2006_NoStunningResults.pdf: 136886 bytes, checksum: 73dac4eafd38d5de006ba564d0036c67 (MD5) Previous issue date: 2006-08
ISSN
  • 0001-4966

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items