Great Barrier Reef's bleaching[Photo/China News Service] Hughes said previous observations had shown that bleaching at that extent leads to “high levels of mortality” of corals.
休斯说,先前的观察显示,这种程度的白化会导致珊瑚的“高死亡率”。
The Great Barrier Reef has experienced five mass bleaching events – 1998, 2002, 2016, 2017 and 2020 – all caused by rising ocean temperatures driven by global heating.
1998年、2002年、2016年、2017年和2020年,大堡礁共经历了五次大规模的白化,都是由全球变暖导致的海洋温度上升造成的。
Hughes said there probably would not be the same level of coral death in the north and central regions in 2020 as in previous years, but this was partly because previous bleaching outbreaks had killed off the less heat-tolerant species.
休斯说,今年,大堡礁北部和中部地区的珊瑚死亡水平可能达不到往年的水平,但部分原因是之前的白化暴发已经导致耐热性较差的珊瑚死亡。
The 2020 bleaching was second only to 2016 for severity, Hughes said.
休斯表示,2020年的白化严重程度仅次于2016年。
Great Barrier Reef's bleaching[Photo/China News Service] Corals can recover from mild bleaching, but scientists say those corals are more susceptible to disease. Severe bleaching can kill corals.
珊瑚可以从轻微的白化中恢复,但科学家表示,这些珊瑚更容易生病。严重的白化甚至会杀死珊瑚。
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