Passive acoustic monitoring of the temporal variability of odontocete tonal sounds from a long-term marine observatory.

ABSTRACT: The developments of marine observatories and automatic sound detection algorithms have facilitated the long-term monitoring of multiple species of odontocetes. Although classification remains difficult, information on tonal sound in odontocetes (i.e., toothed whales, including dolphins and porpoises) can provide insights into the species composition and group behavior of these species. However, the approach to measure whistle contour parameters for detecting the variability of odontocete vocal behavior may be biased when the signal-to-noise ratio is low. Thus, methods for analyzing the whistle usage of an entire group are necessary. In this study, a local-max detector was used to detect burst pulses and representative frequencies of whistles within 4.5-48 kHz. Whistle contours were extract

SUBMITTER: Lin TH 

PROVIDER: S-EPMC4414466 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature