对于精油来说,距离很重要:响应声纳接收水平和源距离的行为障碍
Paul J Wensveen1, Saana Isojunno2, Petter H Kvadsheim3
1Westman Islands Research Centre, Institute of Research Centres, University of Iceland, Ægisgata 2, 900 Vestmannaeyjar, Iceland; Faculty of Life and Environmental Sciences, School of Engineering and Natural Sciences, University of Iceland, Sturlugata 7, 102 Reykjavík, Iceland.
Marine pollution bulletin
|March 2, 2025
概括
海洋声纳噪声会扰乱鱼的食行为,更近的距离和更高的声音水平会造成更大的影响. 短期的习惯性或敏感性也会影响它们对重复暴露的反应.
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.
- 动物行为 动物行为
背景情况:
- 来自海军声纳等活动的人类噪音对海洋哺乳动物构成风险.
- 了解行为反应对于预测噪音污染对人口水平的影响至关重要.
研究的目的:
- 调查接收的声音水平和源距离如何影响 (Physeter macrocephalus) 的行为.
- 评估反复的声纳暴露对食和活动模式的影响.
主要方法:
- 在挪威北部,14只精油被多传感器数据记录器标记.
- 剂量升级实验涉及控制的船舶通过声纳.
- 行为数据 (状态序列,活动,食) 用通用添加混合模型进行分析.
主要成果:
- 随着接收的声音水平的提高和源距离的缩短,精卵的食力度下降.
- 增加的接收水平和接近性减少了猎物捕获尝试.
- 行为反应受到会话顺序的影响,这表明短期的敏感性.
结论:
- 接收的声音水平和源距离是鱼行为障碍的关键驱动因素.
- 与其他一些鱼不同的是,在这个高度的食地带,精油对源距离表现出敏感性.
- 这些发现有助于预测和减轻人类对潜水深度鱼的噪音影响.
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