Dear all,
We are pleased to announce the publication of the following article in the
Journal of the Acoustical Society of America.
de Freitas, M., Smith, J. N., Jensen, F. H., Beedholm, K., and Madsen, P. T.
(2018). “Echolocation click source parameters of Australian snubfin dolphins
(Orcaella heinsohni),” J. Acoust. Soc. Am., 143, 2564–2569.
doi:10.1121/1.5034174
ABSTRACT:
The Australian snubfin dolphin (Orcaella heinsohni) is endemic to Australian
waters, yet little is known about its abundance and habitat use. To investigate
the feasibility of Passive Acoustic Monitoring for snubfin dolphins, biosonar
clicks were recorded in Cygnet Bay, Australia, using a four-element hydrophone
array. Clicks had a mean source level of 200 ± 5 dB re 1 μPa pp, transmission
directivity index of 24 dB, mean centroid frequency of 98 ± 9 kHz, and a
root-mean-square bandwidth of 31 ± 3 kHz. Such properties lend themselves to
passive acoustic monitoring, but are comparable to similarly-sized delphinids,
thus requiring additional cues to discriminate between snubfins and sympatric
species.
The article can be downloaded from the JASA site:
https://asa.scitation.org/doi/abs/10.1121/1.5034174
<https://asa.scitation.org/doi/abs/10.1121/1.5034174>
Alternatively, feel free to contact me directly for a PDF copy:
[email protected] <mailto:[email protected]>
Best,
Mafalda de Freitas
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