Department of Systems Engineering and Naval Architecture, National Taiwan Ocean University, Keelung, Taiwan.
Underwater Acoustic Laboratory, Department of Engineering Sciences and Ocean Engineering, National Taiwan University, Taipei, Taiwan.
Mar Pollut Bull. 2024 Nov;208:116969. doi: 10.1016/j.marpolbul.2024.116969. Epub 2024 Sep 18.
The rapid increase of offshore projects at Taiwan Strait in recent decade has been debated for elevated noise levels. However, there are no studies on long-term assessment of noise levels and impact of noise on marine organisms. The passive acoustic monitoring was conducted at the foremost wind farm area in Taiwan to assess the sound levels and the impact of noise on fish vocalization behavior. Predominately, in the soundscape around the Taiwan Strait, two chorusing types (Type 1 and Type 2) from the Sciaenid family of fishes exist. Ambient sound levels significantly increased from 2014 to 2019, while the chorusing Types 1 and 2 were observed in a lower percentage of the recordings. Additionally, chorusing peak intensity and duration significantly reduced over the years for both choruses. This is the first field-based evidence to demonstrate the consequences of increasing anthropogenic noise having the potential to alter the vocalization behavior of the fish.
过去十年，台湾海峡近海项目迅速增加，人们对其产生的噪音水平有所争议。然而，目前还没有关于噪音水平的长期评估以及噪音对海洋生物影响的研究。本研究在台湾首要风电场区进行被动声学监测，以评估声级和噪声对鱼类发声行为的影响。在台湾海峡周围的声景中，主要存在两种来自石首鱼科的合唱类型（类型 1 和类型 2）。2014 年至 2019 年期间，环境声级显著增加，而记录中出现的合唱类型 1 和 2的比例较低。此外，多年来两种合唱的合唱峰值强度和持续时间都显著降低。这是首次基于实地的证据，证明人为噪声的增加有可能改变鱼类的发声行为。
