Distribution, Abundance, Behavior, and Bioacoustics of Endangered Whales in the Western Beaufort and Northeastern Chukchi Seas, 1979-87

Aerial surveys of bowhead whales and, secondarily, other marine mammals were made from 1 Sep - 23 Oct 1987 in the western Beaufort and northeastern Chukchi Seas. A shore-based acoustic monitoring station was maintained at Barrow, Alaska from 9 Sept 21 Oct 1987 to record the calls of migrating bowhea...

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Bibliographic Details
Main Authors: Ljungblad, Donald K., Moore, Sue E., Clarke, Janet T., Bennett, John C.
Other Authors: NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA
Format: Text
Language:English
Published: 1988
Subjects:
Biology
Biological Oceanography
*WHALES
*MARINE BIOLOGICAL NOISE
*BIOACOUSTICS
MAMMALS
MONITORING
ALASKA
TRACKING
POPULATION
SURVEYS
SOUND
PATTERNS
BEHAVIOR
HABITATS
ENDANGERED SPECIES
GEOGRAPHIC DISTRIBUTION
SHORES
GRAY(COLOR)
AQUATIC ANIMALS
BEAUFORT SEA
CHUKCHI SEA
ANIMAL MIGRATION
PRODUCTION
AUTUMN
STATIONS
DENSITY
MARINE MAMMALS
BALAENA MYSTICETUS
ESCHRICHTIUS ROBUSTUS
POPULATION DENSITY
WUDN988579
Chukchi Sea
Balaena mysticetus
Barrow
Beaufort Sea
bowhead whale
Chukchi
Alaska
walrus*
Online Access:http://www.dtic.mil/docs/citations/ADA198681
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA198681
Description
Summary:Aerial surveys of bowhead whales and, secondarily, other marine mammals were made from 1 Sep - 23 Oct 1987 in the western Beaufort and northeastern Chukchi Seas. A shore-based acoustic monitoring station was maintained at Barrow, Alaska from 9 Sept 21 Oct 1987 to record the calls of migrating bowhead whales as they passed into the northeastern Chukchi Sea. Survey results and observations on bowhead whale distribution, relative abundance and density, migration patterns, general behavior, and sound production are presented. Presented also are survey results and observations on gray whale distribution, relative abundance, and general behavior on belukha and walrus distribution, and relative abundance. Incidental sightings of all marine mammals are reported. This report also summarizes the study efforts made between 1979 and 1987. Keywords: Balaena mysticetus, Eschrichtius robustus, Geographical distribution, Autumn, Marine biological noise, Tracking, Alaska, Chukchi Sea, Beaufort Sea, Animal migration, Whale population, Habitat, Whale behavior, Population density. Prepared in collaboration with SEACO.

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