Hello All,
On behalf of my co-authors I would like to announce the following JASA article
publication:
“50 to 30-Hz triplet and singlet down sweep vocalizations produced by sei
whales (Balaenoptera borealis) in the western North Atlantic Ocean”
available at: https://doi.org/10.1121/1.5110713
Abstract:
The life history, distribution, and acoustic ecology of the sei whale
(Balaenoptera borealis) in the western North Atlantic Ocean remains poorly
understood. In this study an array of bottom-mounted recorders captured
previously undocumented low frequency 50 to 30-Hz triplet and singlet down
sweep vocalizations in close association with signature 82 to 34-Hz sei whale
down sweep vocalizations. Spatiotemporal correlations of acoustically tracked
sei whales confirm the original vocalizations are produced by sei whales. The
50 to 34-Hz down sweep call types were characterized with a suite of five
spectral and temporal measurements. The pattern and repetition of the full
acoustic suite is suggestive of song structure and warrants further
investigation. The discovery of vocalizations attributed specifically to sei
whales enables historic acoustic records to be re-evaluated for the presence of
this species throughout its range.
All the best,
Christopher J Tremblay
University of Maine
School of Marine Sciences
5741 Libby Hall Room 207
Orono, ME 04469
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