确定全球鱼船碰撞管理的优先地点
Freya C Womersley1, Christoph A Rohner2, Kátya Abrantes3
1Marine Biological Association, The Laboratory, Citadel Hill, Plymouth, UK; Marine Research and Conservation Foundation, Somerset, UK; Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK.
The Science of the total environment
|May 2, 2024
概括
大型船只的碰撞威胁着临灭绝的鱼 (Rhincodon typus) 在食地点. 在阿拉伯海和墨西哥湾等高风险地区,缓解策略至关重要,以保护这些脆弱的海洋动物.
科学领域:
- 海洋生物学 海洋生物学
- 保护科学 保护科学
- 海洋学 海洋学 海洋学
背景情况:
- 全球航运流量的扩张增加了与海洋巨型动物相撞的风险.
- 临灭绝的鱼 (Rhincodon typus) 面临着大型船只碰撞的重大威胁,特别是在它们的迁徙路线上.
- 在被称为"星座"的鱼聚集地内发生船只撞击的风险仍然在很大程度上未得到量化.
研究的目的:
- 评估鱼 (Rhincodon typus) 在它们的全球聚集地内的航运运输造成的碰撞风险.
- 根据大型船只碰撞的潜在危险,识别和排名"星座"地点.
- 评估潜在的缓解策略,以减少在鱼息地中发生的船舶撞击事件.
主要方法:
- 通过专家诱导,从全球50多个鱼聚集地收集数据,涉及超过13,000个个体.
- 进行了空间分析,以确定聚合点的边界及其与航道的重叠.
- 网站根据它们相对碰撞威胁水平排名,考虑到航运密度和鱼的存在.
主要成果:
- 阿拉伯海,墨西哥湾,加利福尼亚湾和东南亚的鱼聚集地呈现出最高的碰撞威胁.
- 确定了39个高风险地区,其中鱼季节性峰值与航运活动峰值相吻合,有时持续数月.
- 模拟表明,缓解措施可能对工业产生最小的影响,因为核心鱼息地通常在空间上受到限制.
结论:
- 由于缺乏直接证据,在鱼聚集地发生大型船只碰撞的威胁可能被低估.
- 为了在优先鱼息地实施有效的碰撞减缓措施,必须采取协调的跨国方法.
- 保护鱼"星座"地点免受船只袭击对于保护这个危物种至关重要.
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