Description of sounds recorded from Longman's beaked whale, Indopacetus pacificus

TitleDescription of sounds recorded from Longman's beaked whale, Indopacetus pacificus
Publication TypeJournal Article
Year of Publication2011
AuthorsRankin, Shannon, Baumann-Pickering Simone, Yack Tina, and Barlow Jay
JournalThe Journal of the Acoustical Society of America
Volume130
PaginationEL339-EL344
EndNote Rec Number9637
Abstract

Sounds from Longman’s beaked whale, Indopacetus pacificus, were recorded during shipboard surveys of cetaceans surrounding the Hawaiian Islands archipelago; this represents the first known recording of this species. Sounds included echolocation clicks and burst pulses. Echolocation clicks were grouped into three categories, a 15 kHz click (n = 106), a 25 kHz click (n = 136), and a 25 kHz pulse with a frequency-modulated upsweep (n = 70). The 15 and 25 kHz clicks were relatively short (181 and 144 ms, respectively); the longer 25 kHz upswept pulse was 288 ms. Burst pulses were long (0.5 s) click trains with approximately 240 clicks/s.