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Marine mammal audibility of selected shallow-water survey sources.

Authors
  • MacGillivray, Alexander O
  • Racca, Roberto
  • Li, Zizheng
Type
Published Article
Journal
The Journal of the Acoustical Society of America
Publication Date
Jan 01, 2014
Volume
135
Issue
1
Identifiers
DOI: 10.1121/1.4838296
PMID: 24437854
Source
Medline
License
Unknown

Abstract

Most attention about the acoustic effects of marine survey sound sources on marine mammals has focused on airgun arrays, with other common sources receiving less scrutiny. Sound levels above hearing threshold (sensation levels) were modeled for six marine mammal species and seven different survey sources in shallow water. The model indicated that odontocetes were most likely to hear sounds from mid-frequency sources (fishery, communication, and hydrographic systems), mysticetes from low-frequency sources (sub-bottom profiler and airguns), and pinnipeds from both mid- and low-frequency sources. High-frequency sources (side-scan and multibeam) generated the lowest estimated sensation levels for all marine mammal species groups.

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