[MARMAM] New publication: Characterization and comparison of echolocation clicks of white-beaked dolphins (Lagenorhynchus albirostris) off the Northumberland coast, UK.

Liangliang YANG yllxmu at gmail.com
Tue Mar 9 05:17:34 PST 2021


Dear Marmamers,



We are pleased to share our recent publication:



Yang L, Sharpe M, Temple AJ, Berggren P (2021) Characterization and
comparison of echolocation clicks of white-beaked dolphins (*Lagenorhynchus
albirostris*) off the Northumberland coast, UK. J Acoust Soc Am
149:1498-1506.



The paper is available at: https://doi.org/10.1121/10.0003560 and
https://www.researchgate.net/publication/349826918_Characterization_and_comparison_of_echolocation_clicks_of_white-beaked_dolphins_Lagenorhynchus_albirostris_off_the_Northumberland_coast_UK



*Abstract*: Odontocetes produce ultrasonic clicks for navigation and
foraging. These are commonly categorized as regular or buzz clicks based on
the inter-click interval. Buzz clicks are linked to foraging behaviors and
may be subdivided into slow buzz clicks for prey chase, and regular buzz
clicks for prey capture. This study recorded these three click types
produced by white-beaked dolphins (*Lagenorhynchus albirostris*) off the
Northumberland coast, UK. Acoustic parameters (including duration, centroid
frequency, and root-mean-squared bandwidth) were calculated and compared
across the three click types. The results showed that the regular clicks
had shorter durations and higher frequencies than both the buzz click
types. The regular buzz clicks had longer durations, lower frequencies, and
narrower bandwidths than the slow buzz clicks. Additionally, regardless of
click type, about 30% of the clicks had high-frequency (200–250 kHz)
secondary peaks and >90% of the clicks displayed spectral peak and notch
patterns between 20 and 80 kHz. These findings are useful for future
quantitative assessment of the echolocation performance of white-beaked
dolphins in the wild. The patterns of spectral peaks and notches identified
may facilitate for acoustic identification of this species.



If you have any questions, please feel free to email: yllxmu at gmail.com or
per.berggren at newcastle.ac.uk.



Best regards,



Dr Liangliang Yang (on behalf of all authors)



School of Natural and Environmental Sciences

Newcastle University, UK
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.uvic.ca/pipermail/marmam/attachments/20210309/a7a3fb57/attachment.html>


More information about the MARMAM mailing list