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在三种鱼物种中比较声学粒子加速检测能力
Carolin Nieder1, Brendan J Gibbs2, Jimmy Rapson1
1Institute of Marine Science, University of Auckland, Leigh Marine Research Laboratory, 160 Goat Island Road, Leigh, Auckland 0985, New Zealand.
The Journal of experimental biology
|September 4, 2023
概括
鱼可以检测声音的方向,但听觉灵敏度因物种而异. 这项研究使用听觉唤起的潜能 (AEP) 揭示了地毯,钻机和学校鱼如何处理声音加速的差异.
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.
- 感官生理学 感官生理学
背景情况:
- 行为研究证实了鱼对方向声音定位的能力.
- 关于鱼定向听觉的生理机制的研究有限.
- 了解鱼的听觉处理对于海洋保护和声学威至关重要.
研究的目的:
- 为了研究三种鱼种类的广泛定向听力能力:新西兰地毯,钻机和学校.
- 为了确定鱼是否对垂直 (z轴) 与头到尾 (x轴) 加速有不同的敏感性.
- 为了确定听觉检测带宽和灵敏度的潜在物种间变异.
主要方法:
- 使用定向摇摆表来呈现受控的声学刺激.
- 采用听觉唤起潜力 (AEP) 技术来测量神经对声音的反应.
- 经过测试的新西兰地毯 (Cephaloscyllium isabellum),钻井 (Mustelus lenticulatus) 和学校 (Galeorhinus galeus).
主要成果:
- 鱼的听觉系统可以从各个方向接收声音,这与之前的发现相一致.
- 加速检测带宽不同:地毯中最窄 (40-200 Hz),钻机和学校中更宽 (40-800 Hz).
- 最大的灵敏度波段是40-80 Hz (地毯),100-200 Hz (架) 和80-100 Hz (学校).
- 生活在地底的地毯对垂直和从头到尾的加速具有同等的敏感性.
- 类鱼和学校鱼对高达200赫兹的垂直加速度更敏感.
结论:
- 这项研究提供了第一个生理学证据,证明了鱼定向听力和声音定位的物种间差异.
- 息地和生活方式可能会影响听觉灵敏度,类类物种对垂直加速具有更大的灵敏度.
- 需要对各种弹性枝条物种进行进一步的研究,以了解各种听觉处理的进化驱动因素.
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