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Methods for characterizing fin whale song notes for comparative studies of geographic variation in song
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2018
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[PDF-2.13 MB]
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Description:The identification and delineation of 'stocks' (management units of a species ranging from independent populations to subspecies) is important for understanding and mitigating potential sources of human-caused mortality. This is especially critical for endangered and protected species, such as the large whales. Stock identification for whales has typically been based on ecology, life history, morphology, and genetics. However, for many species, acoustic differences in whale call types may indicate the presence of unidentified populations or subspecies. The potential role of acoustics in identifying structure at various levels of divergence in cetaceans has been recognized in numerous publications; however, this potential has yet to be implemented for large whales. In an effort to include acoustic data in this process, we are contributing to current efforts to update the status of endangered fin whales (Balaenoptera physalus) in the North Pacific. An analysis of North Pacific fin whale populations based on identification of 'song' provides hypotheses that can be tested with other lines of evidence such as genetics. Standardized methods for processing recordings from autonomous recorders will be presented in detail with a summary of the data to be processed and published on peer-reviewed contributions.
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Content Notes:Shannon Rankin, Manuel Castellote, Julien Delarue, Kate Stafford, Frederick Archer, Barbara Koot, Michael Richlen, Jessica Thompson, John Ford, Rob Williams, and Janelle L. Morano.
"January 2018."
Includes bibliographical references (pages 16-20).
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Rights Information:Public Domain
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