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首页> 美国卫生研究院文献>Proceedings of the Royal Society B: Biological Sciences >Blue whales respond to simulated mid-frequency military sonar
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Blue whales respond to simulated mid-frequency military sonar

机译：蓝鲸响应模拟中频军用声纳

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摘要

Mid-frequency military (1–10 kHz) sonars have been associated with lethal mass strandings of deep-diving toothed whales, but the effects on endangered baleen whale species are virtually unknown. Here, we used controlled exposure experiments with simulated military sonar and other mid-frequency sounds to measure behavioural responses of tagged blue whales (Balaenoptera musculus) in feeding areas within the Southern California Bight. Despite using source levels orders of magnitude below some operational military systems, our results demonstrate that mid-frequency sound can significantly affect blue whale behaviour, especially during deep feeding modes. When a response occurred, behavioural changes varied widely from cessation of deep feeding to increased swimming speed and directed travel away from the sound source. The variability of these behavioural responses was largely influenced by a complex interaction of behavioural state, the type of mid-frequency sound and received sound level. Sonar-induced disruption of feeding and displacement from high-quality prey patches could have significant and previously undocumented impacts on baleen whale foraging ecology, individual fitness and population health.
机译：中频军用声纳（1-10 kHz）与深齿齿鲸的致死质量绞合有关，但实际上对濒临灭绝的鲸鱼物种的影响尚不清楚。在这里，我们使用受控的暴露实验以及模拟的军用声纳和其他中频声音，来测量南加州海岸线内觅食区中带标签的蓝鲸的行为响应。尽管使用的声源电平比某些作战军事系统低几个数量级，但我们的结果表明，中频声音会显着影响蓝鲸的行为，尤其是在深饲模式下。当发生反应时，行为改变的范围从停止深喂到游泳速度的增加和定向远离声源的旅行都大不相同。这些行为反应的可变性在很大程度上受到行为状态，中频声音类型和所接收声音水平的复杂相互作用的影响。声纳引起的高质量捕食斑块的觅食和流离失所可能对鲸觅食的生态，个体适应性和人口健康产生重大且以前没有记载的影响。

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