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OAS accession Detail for 0133937, meta_version: 1. Current meta_version is: 5
| accessions_id: |
0133937 | archive
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| Title: |
AFSC/NMML: Bowhead Whale Aerial Abundance Survey off Barrow, Alaska, Spring 2011 (NODC Accession 0133937) |
| Abstract: |
Aerial photographic surveys for bowhead whales were conducted near Point Barrow, Alaska, from 19 April to 6 June in 2011. Approximately 4,594 photographs containing 6,801 bowhead whale images were obtained (not accounting for resightings). The 2011 field season was very successful: we flew 36 out of 49 available days and conducted 49 flights in that time; we were grounded due to weather on 13 days. The longest period of time that we were grounded due to weather (low ceilings/fog) was three days. This occurred after the migration had slowed down, during a time when few whales passed the ice perches according to the ice-based visual survey. The 2011 migration was steady with several peaks (30 April, 4-5 May, 12 May), and then the migration rate slowed down considerably after 14 May. The photographs taken in 2011 are a significant contribution to the bowhead whale photographic catalogue. They will be used to calculate a population estimate that may be used for comparison with the 2011 ice-based estimate and will provide better precision in estimates of bowhead whale life-history parameters. |
| Date received: |
20150930 |
| Start date: |
20110419 |
| End date: |
20110611 |
| Seanames: |
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| West boundary: |
-165 |
| East boundary: |
-148 |
| North boundary: |
72 |
| South boundary: |
68 |
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| Supplementary information: |
Submission Package ID: 5T50YA |
| Availability date: |
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| Metadata version: |
1 |
| Keydate: |
2015-10-05 18:20:04+00 |
| Editdate: |
2015-10-05 18:20:11+00 |