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有证据表明鱼有活跃的声音产生

Carolin Nieder¹, Eric Parmentier², Andrew G Jeffs³

¹Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, MA, USA.

Royal Society open science

|March 27, 2025

概括

这项研究记录了钻井 (Mustelus lenticulatus) 在处理时产生水下点击. 这是鱼有意发出声音的第一个证据,挑战了以前关于弹性鱼的假设.

科学领域:

海洋生物学海洋生物学
生物声学是一种生物声学.
鱼类学鱼类学鱼类学

背景情况:

拉斯莫布朗克斯 (Elasmobranchs) 是一种古老的软骨鱼类,它们可以在水下听到声音,但通常不被认为是声音的产生者.
最近对产生点击的光线的观察促使人们进一步研究弹性枝状动物的声音产生.

研究的目的:

为了记录鱼 (Mustelus lenticulatus) 的声音产生.
描述产生的声音的声学特性.
调查声音制作的潜在机制和行为意义.

主要方法:

记录钻井鱼在处理时产生的水下点击声.
分析声学参数,包括声压水平 (SPLrms),带宽,峰值频率和持续时间.
检查牙形态,寻找潜在的声音生产机制.

主要成果:

钻机鱼产生了宽带点击 (平均带宽 = 23 kHz) 的峰值能量在2.4和18.5 kHz之间 (平均峰值频率 = 9.6 kHz).
点击的平均声压水平 (SPLrms) 为156.3dBre. 在30厘米处1μPa,平均持续时间为48.42 ms.
产生的声音具有低能量,低于1kHz,在钻机鱼的听力范围内.

结论:

这项研究提供了第一个证据证明鱼故意产生声音的证据.
强行敲破平面牙被提出为声音产生机制,得到牙形态和点击特征的支持.
需要进一步的行为研究来确定点击是偶然的还是显著的声学反应.

关键词:

这种类动物叫做Mustelus lenticulatus.点击点击点击点击点击点击应急声音应急声音弹性分支弹性分支一个叫做Rig Rig的公司.启动响应的开始反应.

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