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首页> 外文期刊>Canadian Journal of Zoology >Vocalizations of eastern Australian Risso's dolphins, Grampus griseus
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Vocalizations of eastern Australian Risso's dolphins, Grampus griseus

机译：澳大利亚东部里索海豚Grampus griseus的发声

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Recordings were made from a group of Risso's dolphins (Grampus griseus) off the coast of Newcastle, Australia, between 30 Hz and 22 kHz. Risso's dolphins exhibited seven separate vocalisation types: broadband clicks, barks, buzzes, grunts, chirps, whistles, and simultaneous whistle + burst-pulse sounds. Broadband clicks were highly variable in duration, with a frequency range of 6 to >22 Id-It. Bark vocalisations consisted of highly variable burst pulses, with durations ranging from 0.2 to 7.4 s and a frequency range of 2-20 kHz. BUZZ vocalisations were clearly stereotyped, consisting of a short burst pulse of around 2 s and a frequency range of 2.1 to >22 kHz. Low frequency narrowband grunt vocalisations (0.4-0.8 kHz) were short in duration. Chirp vocalisations were slightly higher in frequency than the grunt vocalisations, ranging in frequency from 2 to 4 kHz. There were at least five different whistle types, ranging in frequency from 4 to 22 kHz. We recorded a combined tonal and burst-pulse vocalisation. The rising whistles ranged from 6 to 18 kHz, while the burst-pulse sounds ranged between 3 and 21 kHz. This combined whistle + burst pulse sound appears to be unique to Risso's dolphins.
机译：记录是从澳大利亚纽卡斯尔海岸附近的一群里索（Risso）的海豚（Grampus griseus）在30 Hz至22 kHz之间进行的。 Risso的海豚展示了7种不同的发声类型：宽带咔嗒声，吠声，嗡嗡声，咕unt声，chi声，哨声以及同时的哨声和突发脉冲声音。宽带点击的持续时间变化很大，频率范围为6至> 22 Id-It。吠声由高度可变的突发脉冲组成，持续时间为0.2到7.4 s，频率范围为2-20 kHz。 BUZZ声音清晰地定型，包括大约2 s的短脉冲脉冲和2.1到> 22 kHz的频率范围。低频窄带咕unt声（0.4-0.8 kHz）持续时间短。 rp声的频率略高于咕gr声，频率范围为2至4 kHz。至少有五种不同的哨子类型，频率范围从4到22 kHz。我们录制了组合的音调和突发脉冲发声。上升的哨声范围为6至18 kHz，而突发脉冲声音的范围为3至21 kHz。这种组合的汽笛声和突发脉冲声似乎是里索的海豚所独有的。

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