来自海洋振动器的持续声音会引起自由行,繁殖的大西洋鱼 (Gadus morhua) 的行为反应
Kate McQueen1, Lise Doksæter Sivle1, Tonje Nesse Forland1
1Institute of Marine Research, P.O. Box 1870 Nordnes, 5817, Bergen, Norway.
Environmental pollution (Barking, Essex : 1987)
|January 11, 2024
概括
海洋振动器是一种新的地震调查技术,导致大西洋鱼减少活动并增加游泳深度. 来自振动器的持续声音可能会比空气枪更多地扰乱鱼,这需要进一步研究.
科学领域:
- 海洋生物学 海洋生物学
- 声学海洋学 声学海洋学
- 环境影响评估环境影响评估
背景情况:
- 海上地震调查传统上使用气枪,产生冲动的声音.
- 海洋振动器提供连续的声音,可能减少对环境的影响.
- 了解鱼类对新型声音源的反应对于保护至关重要.
研究的目的:
- 为了评估大西洋鱼 (Gadus morhua) 对海洋振动器声音的行为反应.
- 为了确定海洋振动器是否会将鱼从产卵场移除.
- 为了比较鱼对连续振动器声音的反应与冲动式气枪声音.
主要方法:
- 在四天的时间里,大西洋产的鱼接受了受控的海洋振动器声音处理.
- 使用声学遥测与压力传感器和加速度计来监测鱼的行为.
- 分析了居住地,生存率,游泳深度,活动和家庭范围.
主要成果:
- 没有观察到过早离开产卵场的情况.
- 在暴露期间,鱼活动水平显著降低 (高达50%),游泳深度增加 (高达2.5米).
- 行为反应显示出根据性别和白天的时间存在差异.
结论:
- 海洋振动器并没有导致迁移,但引起了大西洋鱼的显著行为变化.
- 来自振动器的连续声音可能比间歇性气枪声音对鱼更令人不安.
- 需要进一步的研究才能充分了解持续的声音对海洋生物的影响.
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