McDonald Mark A, Hildebrand John A, Wiggins Sean M, Johnston David W, Polovina Jeffrey J
WhaleAcoustics, Bellvue, Colorado 80512, USA.
J Acoust Soc Am. 2009 Feb;125(2):624-7. doi: 10.1121/1.3050317.
An acoustic record from Cross Seamount, southwest of Hawaii, revealed sounds characteristic of beaked whale echolocation at the same relative abundance year-around (270 of 356 days), occurring almost entirely at night. The most common sound had a linear frequency upsweep from 35 to 100 kHz (the bandwidth of recording), an interpulse interval of 0.11 s, and duration of at least 932 mus. A less common upsweep sound with shorter interpulse interval and slower sweep rate was also present. Sounds matching Cuvier's beaked whale were not detected, and Blainville's beaked whale sounds were detected on only one occasion.
来自夏威夷西南部克罗斯海山的声学记录显示，在全年相对丰度相同的情况下（356天中的270天），出现了喙鲸回声定位的特征声音，几乎全部发生在夜间。最常见的声音具有从35千赫到100千赫（记录带宽）的线性频率上扫，脉冲间隔为0.11秒，持续时间至少为932微秒。还存在一种不太常见的上扫声音，其脉冲间隔较短，扫频速率较慢。未检测到与柯氏喙鲸匹配的声音，仅在一次情况下检测到了布兰氏喙鲸的声音。
