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- W2324157400 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 423:279-289 (2011) - DOI: https://doi.org/10.3354/meps08891 Tidal influences on humpback whale habitat selection near headlands Ellen M. Chenoweth1,*, Christine M. Gabriele1, David F. Hill2 1Glacier Bay National Park, 1 Park Road, Gustavus, Alaska 99826, USA 2Oregon State University, 207 Owen Hall, Corvallis, Oregon 97330, USA *Email: ellen.chenoweth04@gmail.com ABSTRACT: In order to design marine protected areas that are ecologically meaningful, it would be useful to improve our understanding of headland wake foraging systems, which are commonly exploited by baleen whales and other mobile marine predators. We used humpback whale Megaptera novaeangliae sighting data from 1997 to 2008 in combination with tidal prediction software to investigate the effects of current direction (ebb vs. flood) and tidal amplitude on the distribution and abundance of humpback whales around 3 headlands and 5 non-headlands in Glacier Bay and Icy Strait in southeastern Alaska, USA. Headlands were defined as points of land that disrupt tidal flow creating distinct tideward and leeward conditions. We used an advanced tidal circulation model (ADCIRC) to identify these conditions. Current direction and tidal amplitude each significantly affected whale distribution at only one non-headland (χ2 = 6.1, p < 0.01; χ2 = 13, p = 0.002, respectively). At all 3 headlands, current direction significantly affected whale distribution (p < 0.0001). Whale abundance was greater in the leeward areas. Tidal amplitude significantly affected distribution at the 3 headlands (χ2 = 97, p < 0.0001; χ2 = 75, p < 0.0001; χ2 = 6.1, p = 0.05) such that whales selected habitat that moderated, rather than maximized, the effect of tidal amplitude, suggesting that headlands also have the potential to be important features in areas with less extreme tidal exchange. KEY WORDS: Habitat selection · Headland wake · Humpback whale · Foraging · Tidal currents · Hydrodynamic modeling Full text in pdf format PreviousNextCite this article as: Chenoweth EM, Gabriele CM, Hill DF (2011) Tidal influences on humpback whale habitat selection near headlands. Mar Ecol Prog Ser 423:279-289. https://doi.org/10.3354/meps08891 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 423. Online publication date: February 10, 2011 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2011 Inter-Research." @default.
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- W2324157400 title "Tidal influences on humpback whale habitat selection near headlands" @default.
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