Chen Jessica, Pack Adam A, Au Whitlow W L, Stimpert Alison K
Hawaii Institute of Marine Biology, University of Hawaii at Manoa, 46-007 Lilipuna Road, Kaneohe, Hawaii 96744, USA.
Departments of Psychology and Biology and LOHE Bioacoustics Laboratory, University of Hawaii at Hilo, 200 West Kawili Street, Hilo, Hawaii 96720, USA.
J Acoust Soc Am. 2016 Nov;140(5):4010. doi: 10.1121/1.4967444.
Male humpback whales produce loud "songs" on the wintering grounds and some sing while escorting mother-calf pairs, exposing them to near-continuous sounds at close proximity. An Acousonde acoustic and movement recording tag deployed on a calf off Maui, Hawaii captured sounds produced by a singing male escort. Root-mean-square received levels ranged from 126 to 158 dB re 1 μPa. These levels represent rare direct measurements of sound to which a newly born humpback calf may be naturally exposed by a conspecific, and may provide a basis for informed decisions regarding anthropogenic sound levels projected near calves.
雄性座头鲸在越冬地会发出响亮的“歌声”，有些在护送母婴对时歌唱，使它们在近距离接触到几乎持续不断的声音。一个部署在夏威夷毛伊岛附近一头幼鲸身上的声学和运动记录标签，捕捉到了一头歌唱的雄性护送者发出的声音。均方根接收声级范围为相对于1微帕为126至158分贝。这些声级代表了新生座头鲸幼崽可能自然接触到的同种声音的罕见直接测量结果，并可能为就幼鲸附近预计的人为声级做出明智决策提供依据。
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