在两个亚南极岛屿周围的鱼声学生态
1Fisheries Management Branch, Department of Forestry, Fisheries and the Environment, Foreshore, Cape Town, 8001, South Africa; Mammal Research Institute Whale Unit, Faculty of Natural and Agricultural Sciences, University of Pretoria, Private Bag X20, Hatfield, Pretoria, 0028, South Africa.
Marine environmental research
|December 20, 2025
概括
精在爱德华王子群岛周围全年都有声学活动,活动高峰期为2月至8月. 风速和高频噪声对它们的存在产生重大影响,突显了保护计划的必要性.
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.
- 海洋学 海洋学 海洋学
背景情况:
- 在亚南极地区,精卵的分布知之甚少.
- 爱德华王子群岛 (PEI) 是调查的一个关键领域.
研究的目的:
- 为了研究与环境因素和水下噪声相对的鱼声学事件.
- 评估PEI作为一个潜在的鱼息地.
主要方法:
- 从2021年初到2023年初收集的被动声学监测 (PAM) 数据.
- 使用随机森林和通用添加模型进行分析,以确定发生预测因素.
主要成果:
- 在整个研究期间,对精油的持续声学检测.
- 从2月到8月观察到的高峰发声,与雄性迁徙和潜在的猎物可用性相关.
- 风速被确定为主要预测因素,其次是高频噪声 (25001-48000 Hz) 对检测产生负面影响.
结论:
- 这些PEI代表了白全年生存的重要息地.
- 风引起的噪音和高频噪音显著影响鱼的声学发生.
- 生物声学对于研究难以捉摸的海洋哺乳动物是有效的;在PEI的保护计划中需要考虑鱼.
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