Faculty of Mathematics and Natural Sciences, Kiel University, 24118 Kiel, Germany; GEOMAR Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany; Whale Wise, Swansea SA3 1LB, UK.
Whale Wise, Swansea SA3 1LB, UK.
Mar Pollut Bull. 2024 Dec;209(Pt A):117072. doi: 10.1016/j.marpolbul.2024.117072. Epub 2024 Oct 10.
Finnafjörður is a small fjord in northeast Iceland, where the planned construction of a large port has the potential to meaningfully change the marine soundscape and ecosystem. In this study, we used one year (2021/22) of passive acoustic recordings to characterize the pre-construction soundscape, including broadband and decidecade sound pressure levels (SPL), frequency-weighted sound exposure levels, seasonal and diel variability and identified regular types of sound. Finnafjörður is relatively quiet with median decidecade levels centered between 25 Hz and 50 kHz of 74.5 to 86.3 dB re 1 μPa. Wind and rain dominate ambient SPL, while anthropogenic sources only occasionally contributed to the soundscape. Regular biological sound sources include humpback whales, toothed whales, and fish. This baseline soundscape description can be used for noise management during port construction, to monitor future changes in the region, and to act as a framework for comprehensive impact assessments as ports are developed globally.
芬纳菲厄泽是冰岛东北部的一个小峡湾，计划在这里建设一个大型港口，这有可能会显著改变海洋的声景和生态系统。在这项研究中，我们使用了一年（2021/22 年）的被动声学记录来描述建设前的声景，包括宽带和 10 倍频程声压级（SPL）、频率加权声暴露级、季节性和昼夜变化以及识别常见类型的声音。芬纳菲厄泽相对安静，25 Hz 至 50 kHz 之间的 10 倍频程中心水平在 74.5 至 86.3 dB re 1 μPa 之间。风和雨主导着环境 SPL，而人为声源偶尔才会对声景产生影响。常见的生物声源包括座头鲸、齿鲸和鱼类。本底声景描述可用于港口建设期间的噪声管理，以监测该地区未来的变化，并作为全球港口开发时进行全面影响评估的框架。
