Amron Amron, Hidayat Rizqi Rizaldi, Nur Meinita Maria Dyah, Trenggono Mukti
Department of Marine Science, Jenderal Soedirman University, Purwokerto, 53123, Indonesia.
Centre for Maritime Bioscience, Jenderal Soedirman University, Purwokerto, 53123, Indonesia.
Heliyon. 2021 Nov 11;7(11):e08364. doi: 10.1016/j.heliyon.2021.e08364. eCollection 2021 Nov.
The characteristics of traditional fishing boats based on distance are very important to be studied as the main contributor to noise pollution in Cilacap waters. Therefore, this study aimed to determine noise intensity and frequency based on the distance for each traditional fishing boat (3, 5, and 10 Gross Tonage/GT). The results showed that these boats emitted noise with broadband frequency and peak receive levels of 137.6 dB re 1 μPa (3 GT fishing boat at 42.6 m). Furthermore, the noise characteristics were different for each type of ship due to differences in size, engine type, and operational speed. The receive level had the same decreased pattern based on the distance for each noise frequency but with a different intensity. Meanwhile, the noise frequency increased linearly based on the distance and was directly proportional to the pattern of change. Therefore, the higher the frequency, the faster the disappearance of the intensity with increasing distance.
基于距离的传统渔船特性作为芝拉扎水域噪声污染的主要来源，对其进行研究非常重要。因此，本研究旨在确定每艘传统渔船（3总吨、5总吨和10总吨）基于距离的噪声强度和频率。结果表明，这些船只发出宽带频率噪声，峰值接收水平为137.6 dB re 1 μPa（42.6米处的3总吨渔船）。此外，由于尺寸、发动机类型和运行速度的差异，每种类型的船舶噪声特性不同。每种噪声频率的接收水平基于距离具有相同的下降模式，但强度不同。同时，噪声频率基于距离呈线性增加，且与变化模式成正比。因此，频率越高，强度随距离增加而消失得越快。
