全球浮动藻类的开花正在扩大
Lin Qi1,2, Menghua Wang1, Brian B Barnes3
1NOAA Center for Satellite Applications and Research, College Park, MD, USA.
Nature communications
|December 7, 2025
概括
全球海洋显示,宏藻和微藻繁殖的数量显著增加. 卫星数据显示了前所未有的扩张速度,这可能是由于海洋变暖和环保变化造成的.
科学领域:
- 海洋生物学 海洋生物学
- 海洋学 海洋学 海洋学
- 遥感是一种远程传感.
背景情况:
- 在过去的二十年中,藻类繁殖,包括微观藻类 (浮游生物) 和更大的宏观藻类,在各种海洋地区增加了.
- 缺乏对这些藻类增加的全面全球评估.
研究的目的:
- 通过使用卫星图像量化宏藻和微藻渣的全球分布和趋势.
- 分析 2003 年至 2022 年藻类繁殖区的变化.
主要方法:
- 使用人工智能 (AI) 分析了120万张卫星图像.
- 在全球海洋中量化宏藻和微藻渣.
- 统计分析20年期间的扩张率.
主要成果:
- 宏观藻类的开花覆盖了4380万平方公里的累计面积.
- 观察到显著的扩张速度:大藻类每年13.4% (自2003年以来) 在热带大西洋和西太平洋,微藻类每年1.0% (自2003年以来).
- 自2010年代以来,宏的扩张速度显著加快.
结论:
- 海洋变暖和环氧化是观察到的藻类繁殖趋势的可能驱动因素.
- 建议推行有利于大藻和特定微藻物种的潜在制度转变.
- 这些发现对海洋生态,碳捕获和海洋经济有重大影响.
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