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Updated: Jun 28, 2025

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海洋风暴中的生物地质化学动态表明了自然和人为影响之间的差异

Justin Tiano^1,2, Rob Witbaard³, Theo Gerkema³

¹Wageningen Marine Research, Wageningen University & Research, IJmuiden, The Netherlands. justin.tiano@wur.nl.

Scientific reports

|April 16, 2024

概括

海洋风暴会导致沉积物大幅重新悬浮,并改变生物地质化学,其影响在某些方面超过了底部拖网捕捞. 风暴会影响更广的地区,而拖网捕捞则具有更局部,潜在的严重的生物地球化学影响.

科学领域:

海洋科学海洋科学
海洋学海洋学海洋学
环境科学环境科学

背景情况:

了解海洋干扰对于生态系统管理至关重要.
暴风雨等自然事件和底层拖网捕捞等人为活动对海洋环境产生影响.
通过比较这些干扰,可以了解它们对沉积物和生物地质化学的不同影响.

研究的目的:

研究风暴对沉积物再悬浮和海洋生物地球化学动态的影响.
为了比较自然风暴事件的影响与底层拖网捕捞的影响.
分析水柱特性和海底侵蚀的变化.

主要方法:

监测风暴引起的度变化,水柱化学 (酸盐,酸盐,盐度,光) 和海底侵蚀.
将风暴数据与同一地区的底层拖网捕捞探险的现有数据进行比较.
分析与度和侵蚀有关的氧气水平.

主要成果:

风暴造成的度比最近的拖网事件更高.
风暴导致酸盐减少,酸盐增加,盐度降低,光度提高.
在度高峰期间,海底侵蚀平均为0.3厘米,而拖网捕捞造成的侵蚀深度是这个深度的两倍,并减少了氧气.
风暴引起的度与由于波浪混合而增加的氧气相关.

结论:

风暴对海洋生物地质化学有更大的区域影响.
底部拖网可以产生更显著的局部影响,包括氧气耗尽.
自然风暴和底捕鱼对海洋环境产生不同的影响,特别是在减少物质的氧化方面.

关键词:

生物地质化学生物地质化学渔业的影响渔业影响暴风雨影响的影响.水柱是指水柱中的水.

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