影响大黄鱼的水中声指标

发布时间：2018-02-05 04:11

  本文关键词： 工程爆破 水中声波 大黄鱼 声暴露级 指标　出处：《爆炸与冲击》2017年04期 　论文类型：期刊论文

【摘要】：为了明确有效地评价声波对大黄鱼影响的指标,以水下爆破和滨海山体爆破两种作业方式产生的水中声波数据为基础,进行声波信号的声压峰值和声暴露级分析,并结合现场大黄鱼的行为响应进行研究。结果表明:水下爆破产生的水中声波瞬态声压幅值较高,能量在瞬间累积到最大值并影响大黄鱼的行为和安全;而滨海山体爆破水中声波的声压幅值小,声暴露时间长,能量的连续累积造成了大黄鱼行为的改变。由于两种爆破方式作用下的水中声波在不同的声暴露时间内的声暴露级较接近,且超过150dB会造成大黄鱼的行为异常,因此认为声暴露级是评价水中声波对大黄鱼影响的一个重要指标。
[Abstract]:In order to evaluate the effect of acoustic wave on large yellow croaker, the acoustic wave data produced by underwater blasting and coastal mountain blasting are taken as the basis. The peak sound pressure and exposure level of acoustic wave signal were analyzed, and the behavior response of Pseudosciaena Crocea was studied. The results show that the amplitude of acoustic wave transient sound pressure produced by underwater blasting is high. The energy accumulates to the maximum in an instant and affects the behavior and safety of large yellow croaker (Pseudosciaena Crocea). However, the amplitude of sound pressure in coastal mountain blasting water is small and the exposure time is long. The continuous accumulation of energy resulted in the change of the behavior of large yellow croaker. The sound exposure level of acoustic waves in water under the two blasting modes was similar in different exposure time. It is considered that the acoustic exposure level is an important index to evaluate the influence of acoustic waves on large yellow croaker (Pseudosciaena Crocea).
【作者单位】： 国家海洋局第三海洋研究所海洋声学与遥感实验室;
【基金】：国家海洋局第三海洋研究所基本科研业务费专项项目(海三科2013020;2012022)
【分类号】：TB41
【正文快照】： 工程爆破为人类获取资源、向海洋拓展空间创造了可能,但由此产生的水下噪声对水生环境和水生生物的影响,尤其是对听觉敏感的珍稀海洋哺乳动物和珍贵鱼类的潜在不良影响引起了广泛关注[1-4]。大黄鱼隶属鲈形目石首科,在我国近海渔业中占有重要地位[5]。大黄鱼具有明显的行为声，

本文编号：1492082