Distribution, abundance and behavior of endangered whales in the Alaskan Chukchi and Western Beaufort Seas, 1991: With a review 1982-91. Final report, September-November 1991

Technical Report · Tue Sep 01 00:00:00 EDT 1992

OSTI ID:6827538

Moore, S E; Clarke, J T

The report summarizes the 1991 investigations of the distribution, abundance, migration timing and route, behavior, and habitat relationships of endangered whales in the Alaskan Chukchi and western Beaufort seas (hereafter, study area); 1991 was the third year of a three year (1989-91) study. Data were collected during transect and search surveys flown in a specially modified Grumman Goose (model G21G) aircraft over the study area from 20 September through 7 November. The Bering Sea stock of bowhead whales (Balaena mysticetus) was the principal species studied. Gray whales (Eschrichtius robustus) were also studied, with incidental sightings of all other marine mammals routinely recorded. Data collected during the 1991 study were subsequently integrated with the results of surveys conducted from 1982-1990. In 1991, there were 27 sightings of 32 bowhead whales and 20 sightings of 26 gray whales in the study area from 20 September through October.

• Research Organization: Science Applications International Corp., San Diego, CA (United States). Maritime Services Div.
• OSTI ID: 6827538
• Report Number(s): PB-93-135895/XAB; CNN: DI-14-35-0001-30468
• Resource Relation: Other Information: See also PB--91-105494
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
BEAUFORT SEA
ENDANGERED SPECIES
ABUNDANCE
AIRCRAFT
ALASKA
ANIMALS
AQUATIC ECOSYSTEMS
BERING SEA
CHUKCHI SEA
COMPILED DATA
DISTRIBUTION
HABITAT
INVESTIGATIONS
LEADING ABSTRACT
MAMMALS
MAPS
MIGRATION
SEAS
SURVEYS
ABSTRACTS
ADMINISTRATIVE PROCEDURES
ARCTIC OCEAN
DATA
DEVELOPED COUNTRIES
DOCUMENT TYPES
ECOSYSTEMS
INFORMATION
NORTH AMERICA
NUMERICAL DATA
PACIFIC OCEAN
SURFACE WATERS
USA
VERTEBRATES
540310* - Environment
Aquatic- Basic Studies- (1990-)