Xu Ruijie, Yang Shouguo, Li Yiyu, Zhang Xuguang, Tang Xianming
Engineering Technology Research Center of Marine Ranching, College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China.
Hainan Provincial Key Laboratory of Tropical Maricultural Technology, Hainan Academy of Ocean and Fisheries Sciences, Haikou 571126, China.
Animals (Basel). 2025 Mar 2;15(5):714. doi: 10.3390/ani15050714.
Anthropogenic noise pollution is increasingly acknowledged as a major threat to marine ecosystems, especially for sound-sensitive species, such as the large yellow croaker (). While the effects of underwater noise on fish behavior and physiology have been well-documented, its influence on oxygen metabolism across varying temperatures remains poorly understood. This study examines the impact of boat noise on the oxygen consumption rate (OCR) of juvenile large yellow croakers at different temperatures, a key factor in their metabolic activity. The underwater noise generated by a fishing boat spans a broad frequency range, with a peak spectrum level of 130 dB re 1 µPa at low frequencies between 100 and 200 Hz. Our findings reveal that boat noise significantly elevates the OCR of juvenile fish, with mass-specific OCR increasing by 65.0%, 35.3%, and 28.9% at 18 °C, 25 °C, and 30 °C, respectively. Similarly, individual OCR rose by 60.7%, 35.3%, and 17.1% at these temperatures. These results demonstrate that boat noise triggers a stress response in fish, resulting in heightened metabolic demands across different seasonal conditions. Notably, the impact of boat noise on respiratory metabolism is most significant at lower temperatures. In aquatic environments with stable oxygen levels, the noise-induced rise in oxygen consumption could lead to hypoxia and provoke maladaptive behavioral changes in fish.
人为噪声污染日益被认为是对海洋生态系统的重大威胁，尤其是对声音敏感的物种，如大黄鱼。虽然水下噪声对鱼类行为和生理的影响已有充分记录，但其在不同温度下对氧代谢的影响仍知之甚少。本研究考察了船只噪声对不同温度下大黄鱼幼鱼耗氧率（OCR）的影响，耗氧率是其代谢活动的一个关键因素。一艘渔船产生的水下噪声频率范围很广，在100至200赫兹的低频段，峰值频谱级为130分贝（相对于1微帕）。我们的研究结果表明，船只噪声显著提高了幼鱼的耗氧率，在18℃、25℃和30℃时，单位体重耗氧率分别增加了65.0%、35.3%和28.9%。同样，在这些温度下，个体耗氧率分别上升了60.7%、35.3%和17.1%。这些结果表明，船只噪声引发了鱼类的应激反应，导致在不同季节条件下代谢需求增加。值得注意的是，船只噪声对呼吸代谢的影响在较低温度下最为显著。在氧水平稳定的水生环境中，噪声引起的耗氧量增加可能导致缺氧，并引发鱼类的适应不良行为变化。
