音响驯化对许氏平鲉有效作用范围的研究

Study on the effective range of sound domestication for Sebastes schlegelii

音响驯化型海洋牧场的建设对于渔业资源的增殖、海洋环境保护、渔业可持续发展意义重大。研究音响驯化有效作用范围,可以为海洋牧场人工鱼礁的投放选址提供科学合理的参考依据。本研究参照T/SCSF 0009—2021《海洋牧场鱼类音响驯化技术规程》设置许氏平鲉(Sebastes schlegelii)音响驯化放声参数,在海洋牧场示范区通过水下播放300 Hz正弦波模拟野外音响驯化,通过测算建立水下噪声衰减模型。结果显示:水下1 m、5 m、10 m的水平衰减公式分别为TTL=1.73×10 log(r)、TTL=1.58×10 log(r)、TTL=1.70×10 log(r),水下噪声衰减为球面衰减。在海洋牧场示范区内对许氏平鲉选用参数为300 Hz、155 dB的正弦波进行音响驯化的有效半径为500 m,音响驯化的最佳半径为250 m。

The construction of acoustic-tamed marine ranching is of great significance to the proliferation of fishery resources,the protection of the marine environment,and the sustainable development of fishery.The study of the effective range of acoustic taming can provide a scientific and reasonable reference for the site selection of artificial reefs in marine ranching.In this study,the sound playing parameters for acoustic taming of Sebastes schlegelii were set concerning the T/SCSF 0009—2021 technical regulations of fish acoustic taming in marine ranching.In the marine ranching demonstration area,300 Hz sine waves were played underwater to simulate the field acoustic taming.The underwater noise attenuation model was established through calculation.The results show that the horizontal attenuation formulas of 1 m,5 m,and 10 m underwater are:TTL=1.73×10 logs(r);TTL=1.58×10 log(r);TTL=1.70×10 log(r),and the underwater noise attenuation is spherical attenuation.In the marine ranching demonstration area,the effective radius of acoustic taming of the sine wave with the parameter of 300 Hz,155 dB for Sebastes schlegelii is 500 m,and the optimal radius of acoustic taming is 250 m.