史无前例的2020年珊瑚漂白揭示了红海中部地区不同类型的意外反应
Natalie Dunn1,2, Fabio Marchese2, Catherine S McFadden3
1Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
PloS one
|September 9, 2025
概括
红海气温上升导致2020年珊瑚礁严重漂白. 两年后,近一半的珊瑚群体出现死亡率,而一些物种表现出弹性和恢复,突出显示了监测的必要性.
科学领域:
- 海洋生物学 海洋生物学
- 珊瑚礁生态 珊瑚礁生态
- 气候变化影响气候变化的影响.
背景情况:
- 在过去的30年里,红海的海面温度每十年上升高达0.45°C.
- 珊瑚漂白事件在该地区的频率和严重程度正在增加.
- 2020年10月发生了一次重要的珊瑚礁漂白事件,一些地区经历了超过12°C的周.
研究的目的:
- 评估大规模珊瑚礁漂白事件后珊瑚群体的长期变化.
- 从2020年到2022年,追踪沙特阿拉伯中部红海珊瑚群落的命运.
- 为了确定珊瑚物种的弹性和易受该地区漂白事件的敏感性.
主要方法:
- 结构从运动摄像度被用来调查珊瑚群落.
- 调查于2020年10月在漂白事件期间进行,并于2022年10月再次进行.
- 在2020年活动期间,现场温度在31.9°C至32.7°C之间.
主要成果:
- 65%的珊瑚群体在2020年表现出一些漂白.
- 到2022年,近一半的殖民地显示部分或完全死亡率 (18%的完全死亡率).
- 27%的殖民地没有显示颜色变化,而21%的殖民地在两年内恢复. 波里特,蒙蒂波拉,波西洛波拉和斯蒂洛波拉被确定为"赢家",而阿克罗波拉,戈尼亚斯特雷亚,谢尼科和斯克莱罗菲图姆则是"失败者".
结论:
- 2020年的漂白事件可能是沙特阿拉伯中部红海有史以来最严重的漂白事件.
- 这项研究强调了珊瑚物种之间的不同弹性,有些珊瑚物种表现出恢复,而另一些则屈服于漂白.
- 加强对珊瑚和环境数据的监测对于了解这个数据稀缺地区的珊瑚礁弹性至关重要.
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