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Gray whale migration patterns through the Southern California Bight from multi-year visual and acoustic monitoring
Sightings and acoustic recordings from eastern North Pacific gray whales in the Southern California Bight were analyzed for interannual changes and compared with concurrent environmental measurements during 7 migration seasons (2008−2009 to 2014−2015). Acoustic call counts recorded on an offshore hy...
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Published in: | Marine ecology. Progress series (Halstenbek) 2019-08, Vol.625, p.181-203 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Sightings and acoustic recordings from eastern North Pacific gray whales in the Southern California Bight were analyzed for interannual changes and compared with concurrent environmental measurements during 7 migration seasons (2008−2009 to 2014−2015). Acoustic call counts recorded on an offshore hydrophone were highly variable from year to year. Assuming an average calling rate of 7.5 calls whale–1 d–1, the estimated number of whales migrating by this hydrophone would be |
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ISSN: | 0171-8630 1616-1599 |
DOI: | 10.3354/meps12989 |