工业深海采矿试验对宏观动物生物多样性的影响
Eva C D Stewart1,2, Helena Wiklund3,4,5, Lenka Neal3
1Natural History Museum, London, UK. e.stewart@nhm.ac.uk.
Nature ecology & evolution
|December 5, 2025
概括
深海采矿显著减少了采矿轨道的宏观动物密度和物种丰富度. 沉积物羽毛改变了物种的主导地位,影响了深平原的整体生物多样性.
科学领域:
- 海洋生物学 海洋生物学
- 深海生态 深海生态
- 环境科学 环境科学
背景情况:
- 深海采矿是一个发展中的行业,具有潜在的环境影响.
- 了解聚金属结节提取对深海动物群的影响至关重要.
研究的目的:
- 在深海采矿试验后评估宏观动物丰富度和生物多样性的时空变化.
- 为了区分直接的采矿影响与自然环境的变化.
主要方法:
- 对生活在沉积物中的宏观动物的定量物种级别分析.
- 采矿前2年和采矿后2个月的数据比较.
- 直接开采和受沉积物羽毛影响的地区的调查.
主要成果:
- 在采矿轨道内,宏观动物密度下降了37%,物种丰富度下降了32%.
- 社区多变量分散在开采区显著增加.
- 沉积物羽毛改变了物种占主导地位,但没有影响动物丰度.
结论:
- 深海采矿造成了当地生物多样性的重大损失,特别是在采矿轨道上.
- 在评估生物多样性风险时,物种级别的分类学数据至关重要.
- 有效的基线和影响调查对于管理深海采矿至关重要.
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