使用声景代码 (codea) 对水下声景进行多维比较.
Dylan C Wilford1,2,3, Jennifer L Miksis-Olds1, S Bruce Martin4
1Center for Acoustics Research and Education, University of New Hampshire, Durham, New Hampshire 03824, USA.
The Journal of the Acoustical Society of America
|November 28, 2023
概括
海洋音景揭示了息地差异. 浅浅的珊瑚礁在声学上与深海环境不同,为美国提供了基线数据. 外部大陆架. 外部大陆架.
科学领域:
- 海洋生物声学 海洋生物声学
- 深海生态 深海生态
- 息地特征表征 息地特征表征
背景情况:
- 声音景观为生态系统过程,息地质量和生物多样性提供了洞察力.
- 浅浅的珊瑚礁具有生物多样性,而深海珊瑚环境仍然不太了解.
- 声学数据可以根据物理和生物特征区分息地.
研究的目的:
- 从声学上量化和比较来自不同海洋息地的声景.
- 探索息地,深度和基板如何影响音景特性.
- 建立美国深海环境的基线声学数据. 外部大陆架. 外部大陆架.
主要方法:
- 从四个美国的声音景观的量化. 一个来自外大陆架,一个来自大堡礁.
- 应用音景编码来分析声学指标和日常趋势.
- 集群分析用于比较不同息地类型 (浅与深,珊瑚与沙底) 的音景特性.
主要成果:
- 浅处的热带珊瑚礁声景与深海声景相比,在振幅和冲动性方面显示出明显的差异.
- 深海的声音景观是多样化的,与非珊瑚深海景观相比,冷水珊瑚遗址表现出独特的声学特性.
- 声学指标成功地区分了浅海和深海息地,以及珊瑚和沙子基板之间的区别.
结论:
- 音景分析提供了一种有价值的工具,用于描述和区分海洋息地.
- 深海的声音景观,特别是来自冷水珊瑚的声音景观,具有独特的声学特征.
- 这项研究为美国建立了关键的基线声学数据. 外部大陆架,对于监测未来的环境变化至关重要.
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