Aerial Surveys of Endangered Whales in the Beaufort Sea, Chukchi Sea, and Northern Bering Sea.
Aerial surveys and acoustic recordings of bowhead whales and other marine mammals were made from 17 April to 4 November 1980 in the Beaufort, Chukchi, and Bering Seas. The spring and fall migrations past the lease areas were monitored closely to determine whale distribution. Ice conditions, which ar...
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ftdtic:ADA103406 2023-05-15T15:35:58+02:00 Aerial Surveys of Endangered Whales in the Beaufort Sea, Chukchi Sea, and Northern Bering Sea. Ljungblad,D K NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA 1981-06 text/html http://www.dtic.mil/docs/citations/ADA103406 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA103406 en eng http://www.dtic.mil/docs/citations/ADA103406 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Biological Oceanography *WHALES *ANIMAL MIGRATION AERIAL RECONNAISSANCE DENSITY COASTAL REGIONS ALASKA POPULATION SEASONAL VARIATIONS SURVEYS BEHAVIOR NORTH(DIRECTION) ENDANGERED SPECIES LEASING GEOGRAPHIC DISTRIBUTION SEA ICE PETROLEUM INDUSTRY MARINE BIOLOGICAL NOISE SEALS(MAMMALS) ACOUSTIC RECORDING SYSTEMS BEAUFORT SEA CHUKCHI SEA BERING SEA North slope(Alaska) Whaling *Balaena mysticetus Eschrichtius robustus LPN-BLM-00L80AA-851-IAO-1 Text 1981 ftdtic 2016-02-20T20:24:45Z Aerial surveys and acoustic recordings of bowhead whales and other marine mammals were made from 17 April to 4 November 1980 in the Beaufort, Chukchi, and Bering Seas. The spring and fall migrations past the lease areas were monitored closely to determine whale distribution. Ice conditions, which are fully discussed, radically changed the migration pattern from that of the 1979 season. Unusual and distinctively marked whales were noted during the spring and fall migrations, and a stranding was investigated. The 1979 acoustic recordings have been analyzed and are provided in an appendix. (Author) Text Balaena mysticetus Beaufort Sea Bering Sea Chukchi Chukchi Sea north slope Sea ice Alaska Defense Technical Information Center: DTIC Technical Reports database Bering Sea Chukchi Sea |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Biological Oceanography *WHALES *ANIMAL MIGRATION AERIAL RECONNAISSANCE DENSITY COASTAL REGIONS ALASKA POPULATION SEASONAL VARIATIONS SURVEYS BEHAVIOR NORTH(DIRECTION) ENDANGERED SPECIES LEASING GEOGRAPHIC DISTRIBUTION SEA ICE PETROLEUM INDUSTRY MARINE BIOLOGICAL NOISE SEALS(MAMMALS) ACOUSTIC RECORDING SYSTEMS BEAUFORT SEA CHUKCHI SEA BERING SEA North slope(Alaska) Whaling *Balaena mysticetus Eschrichtius robustus LPN-BLM-00L80AA-851-IAO-1 |
spellingShingle |
Biological Oceanography *WHALES *ANIMAL MIGRATION AERIAL RECONNAISSANCE DENSITY COASTAL REGIONS ALASKA POPULATION SEASONAL VARIATIONS SURVEYS BEHAVIOR NORTH(DIRECTION) ENDANGERED SPECIES LEASING GEOGRAPHIC DISTRIBUTION SEA ICE PETROLEUM INDUSTRY MARINE BIOLOGICAL NOISE SEALS(MAMMALS) ACOUSTIC RECORDING SYSTEMS BEAUFORT SEA CHUKCHI SEA BERING SEA North slope(Alaska) Whaling *Balaena mysticetus Eschrichtius robustus LPN-BLM-00L80AA-851-IAO-1 Ljungblad,D K Aerial Surveys of Endangered Whales in the Beaufort Sea, Chukchi Sea, and Northern Bering Sea. |
topic_facet |
Biological Oceanography *WHALES *ANIMAL MIGRATION AERIAL RECONNAISSANCE DENSITY COASTAL REGIONS ALASKA POPULATION SEASONAL VARIATIONS SURVEYS BEHAVIOR NORTH(DIRECTION) ENDANGERED SPECIES LEASING GEOGRAPHIC DISTRIBUTION SEA ICE PETROLEUM INDUSTRY MARINE BIOLOGICAL NOISE SEALS(MAMMALS) ACOUSTIC RECORDING SYSTEMS BEAUFORT SEA CHUKCHI SEA BERING SEA North slope(Alaska) Whaling *Balaena mysticetus Eschrichtius robustus LPN-BLM-00L80AA-851-IAO-1 |
description |
Aerial surveys and acoustic recordings of bowhead whales and other marine mammals were made from 17 April to 4 November 1980 in the Beaufort, Chukchi, and Bering Seas. The spring and fall migrations past the lease areas were monitored closely to determine whale distribution. Ice conditions, which are fully discussed, radically changed the migration pattern from that of the 1979 season. Unusual and distinctively marked whales were noted during the spring and fall migrations, and a stranding was investigated. The 1979 acoustic recordings have been analyzed and are provided in an appendix. (Author) |
author2 |
NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA |
format |
Text |
author |
Ljungblad,D K |
author_facet |
Ljungblad,D K |
author_sort |
Ljungblad,D K |
title |
Aerial Surveys of Endangered Whales in the Beaufort Sea, Chukchi Sea, and Northern Bering Sea. |
title_short |
Aerial Surveys of Endangered Whales in the Beaufort Sea, Chukchi Sea, and Northern Bering Sea. |
title_full |
Aerial Surveys of Endangered Whales in the Beaufort Sea, Chukchi Sea, and Northern Bering Sea. |
title_fullStr |
Aerial Surveys of Endangered Whales in the Beaufort Sea, Chukchi Sea, and Northern Bering Sea. |
title_full_unstemmed |
Aerial Surveys of Endangered Whales in the Beaufort Sea, Chukchi Sea, and Northern Bering Sea. |
title_sort |
aerial surveys of endangered whales in the beaufort sea, chukchi sea, and northern bering sea. |
publishDate |
1981 |
url |
http://www.dtic.mil/docs/citations/ADA103406 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA103406 |
geographic |
Bering Sea Chukchi Sea |
geographic_facet |
Bering Sea Chukchi Sea |
genre |
Balaena mysticetus Beaufort Sea Bering Sea Chukchi Chukchi Sea north slope Sea ice Alaska |
genre_facet |
Balaena mysticetus Beaufort Sea Bering Sea Chukchi Chukchi Sea north slope Sea ice Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA103406 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766366314261118976 |