Rankin Shannon, Barlow Jay
Southwest Fisheries Science Center, La Jolla, California 92037, USA.
J Acoust Soc Am. 2007 Jul;122(1):42-5. doi: 10.1121/1.2743159.
During a combined visual and acoustic cetacean survey of the Hawaiian Islands in 2002, four midfrequency sounds were recorded in close proximity to a group of Blainville's beaked whales, Mesoplodon densirostris. These sounds included one frequency-modulated whistle, and three frequency- and amplitude-modulated pulsed sounds, with energy between 6 and 16 kHz. Until recently, little was known of the acoustic behavior of beaked whales, and early descriptions of audible sounds made by beaked whales are incomplete [Caldwell and Caldwell, Cetology 4, 1-5 (1971); Lynn and Reiss, Marine Mammal Sci. 8(3), 229-305 (1992); T. C. Poulter, "Marine mammals," in Animal Communication; Techniques of Study and Results of Research, edited by T. A. Sebeok (Indiana University Press, Bloomington, 1968)]. Recent recordings of high-frequency clicks (>20 kHz, [Johnson et al., Proc. R. Soc. London, Ser. B (Suppl.) 271, 5383-5386 (2004); Zimmer et al., J. Acoust. Soc. Am. 117(6), 3919-3927.]) were above the frequency response of our equipment, and therefore not detected. Sound production within the midfrequency range of sounds described here suggests that the hearing of M. densirostris is sensitive at frequencies used in some types of active sonars.
2002年，在对夏威夷群岛进行的一项视觉与声学相结合的鲸类调查中，在一群布兰氏喙鲸（Mesoplodon densirostris）附近记录到了四种中频声音。这些声音包括一个调频哨声和三个调频调幅脉冲声，能量在6至16千赫兹之间。直到最近，人们对喙鲸的声学行为知之甚少，早期对喙鲸可听声音的描述并不完整[考德威尔和考德威尔，《鲸类学》4，1 - 5（1971年）；林恩和赖斯，《海洋哺乳动物科学》8(3)，229 - 305（1992年）；T. C. 波尔特，“海洋哺乳动物”，载于T. A. 西比奥克编辑的《动物交流：研究技术与研究成果》（印第安纳大学出版社，布卢明顿，1968年）]。最近记录到的高频咔哒声（>20千赫兹，[约翰逊等人，《伦敦皇家学会学报》，B辑（增刊）271，5383 - 5386（2004年）；齐默等人，《美国声学学会杂志》117(6)，3919 - 3927。]）超出了我们设备的频率响应范围，因此未被检测到。此处所描述声音的中频范围内的发声表明，布兰氏喙鲸的听觉在某些类型主动声纳所使用的频率上较为敏感。
