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OAS accession Detail for 0133937
| accessions_id: |
0133937 | archive
|
| Title: |
Bowhead whale aerial abundance survey conducted by Alaska Fisheries Science Center, National Marine Mammal Laboratory from 2011-04-19 to 2011-06-11 (NCEI 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: |
-164.42379 |
| East boundary: |
-148.41013 |
| North boundary: |
71.974838 |
| South boundary: |
68.987009 |
| Observation types: |
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| Instrument types: |
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| Datatypes: |
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| Submitter: |
Waite, Janice |
| Submitting institution: |
US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory |
| Collecting institutions: |
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| Contributing projects: |
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| Platforms: |
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| Number of observations: |
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| Supplementary information: |
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| Availability date: |
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| Metadata version: |
5 |
| Keydate: |
2015-10-05 18:20:04+00 |
| Editdate: |
2024-09-09 19:54:07+00 |