Underwater bioacoustic analysis of bearded seal behavior off Barrow, Alaska

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Show simple item record Ajmi, Amal Romona 2012-11-01T20:57:36Z 2012-11-01T20:57:36Z 1996-12
dc.description Thesis (M.S.) University of Alaska Fairbanks, 1996 en_US
dc.description.abstract Bearded seal vocalizations were collected incidentally during the 1993 bowhead whale census. Analysis of seal locations, calculated by triangulation of the vocalizations, provided information on seal swim velocity, distribution, and movement. Swim speeds fell within previously documented values. Seal positions, when correlated with satellite images, suggested that seal distribution was directly associated with ice topography. Individually tracked seals exhibited different types of movements including: maintenance of position, rapid increase in speed and slower, prolonged directional travel. Swim speeds, distributions, and movements suggest distinct behaviors which may include foraging, territorial or female defense, or display. Movement and behaviors may alter as ice conditions change throughout the breeding season. Bioacoustics, when coupled with other research methods, is a useful tool in the study of the behavior of less accessible animals. en_US
dc.subject bearded seal en_US
dc.subject Arctic Ocean en_US
dc.subject behavior en_US
dc.subject seals en_US
dc.subject animal sounds en_US
dc.title Underwater bioacoustic analysis of bearded seal behavior off Barrow, Alaska en_US
dc.type Thesis en_US ms
dc.identifier.department Program in Marine Science and Limnology
dc.contributor.chair Castellini, Michael
dc.contributor.committee Kelley, John
dc.contributor.committee Murphy, Edward

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