Whistle source levels of free-ranging beluga whales in Saguenay-St. Lawrence marine park.

J Acoust Soc Am

Chaire CHORUS, Foundation of Grenoble INP, 46 Avenue Félix Viallet, 38031 Grenoble cedex 1, France

Published: July 2016

Wild beluga whistle source levels (SLs) are estimated from 52 three-dimensional (3D) localized calls using a 4-hydrophone array. The probability distribution functions of the root-mean-square (rms) SL in the time domain, and the peak, the strongest 3-dB, and 10-dB SLs from the spectrogram, were non-Gaussian. The average rms SL was 143.8 ± 6.7 dB re 1 μPa at 1 m. SL spectral metrics were, respectively, 145.8 ± 8 dB, 143.2 ± 7.1 dB, and 138.5 ± 6.9 dB re 1 μPa(2)·Hz(-1) at 1 m.

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http://dx.doi.org/10.1121/1.4955115DOI Listing

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