High-frequency clicks associated with low-frequency minke whale pulse trains recorded at three separate locations in the western North Atlantic
Authors: Risch, D., S. Baumann-Pickering, L.W. Hodge, T. Norris, A. Read, J. Stanistreet, J., and S. Van Parijs
Year published: 2015
File size: 92.10 KB
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Recent analysis of passive acoustic data collected from autonomous recorders deployed in the Western North Atlantic have resulted in characterization of three main types of low-frequency minke whale pulse trains ('speed-up', 'slow-down' and 'constant' type) in the Western North Atlantic. These pulse train types show varying interpulse interval structure and appear to exhibit some geographic variation in signal structure as well as relative occurrence at different sites. Most past data were collected at low sampling rates, equal to or below 2000 Hz, so only lower frequencies components of these signals, showing peak frequencies between 50 and 130 Hz, have been described to date.
