Marine Mammals Monitoring for Northwest Fisheries: 2005 Field Year

A field program to monitor marine mammals during winter months in the coastal waters of Washington State has been established using Passive Aquatic Listeners (PALs). Upgrades to existing instruments and new operating software were utilized during the field year 2005. Two offshore moorings at Cape Fl...

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Bibliographic Details
Main Author: Nystuen, Jeffrey A.
Other Authors: WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
Format: Text
Language:English
Published: 2007
Subjects:
Biology
Anatomy and Physiology
Physical and Dynamic Oceanography
Optics
*MAMMALS
*MONITORING
*OCEAN ENVIRONMENTS
*VISUAL PERCEPTION
*AQUATIC ANIMALS
*WHALES
*ACOUSTIC FIELDS
COMPUTER PROGRAMS
TRANSIENTS
PASSIVE SYSTEMS
BITES AND STINGS
MOORING
OFFSHORE
SOUND
CLASSIFICATION
RELIABILITY
WATER
COASTAL REGIONS
DETECTION
*KILL WHALES
Bain
Haro
Killer Whale
Killer whale
Online Access:http://www.dtic.mil/docs/citations/ADA469811
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA469811
Description
Summary:A field program to monitor marine mammals during winter months in the coastal waters of Washington State has been established using Passive Aquatic Listeners (PALs). Upgrades to existing instruments and new operating software were utilized during the field year 2005. Two offshore moorings at Cape Flattery and one mooring in Haro Strait, deployed synergistically with a visual observation program, were successful. Data demonstrate quantitative acoustic classification of the marine environment. The new software feature, recorded sound bites, assists in the interpretation of the sound field. Specific sound bites containing whale vocalizations were collected and then identified by outside experts. Transient killer whale and Southern Resident (SR) killer whale vocalizations were detected at Cape Flattery. Co-detection of SR killer whales with the visual observation program (D. Bain) confirm the potential for reliable detection of sound-producing marine mammals, in particular, SR killer whales, using passive acoustic monitoring with PALs. The original document contains color images.

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