Tests showed them to be healthy that despite a severe bleaching event that hit Heron Island in March, bleaching occurs when hot or water destroys the algae, which corals feed on, causing them to turn white A recent study from James Cook University found that the reef had lost more than half of its coral in the past three decades on raised concern that it's less able to recover from mass bleaching events.
測試表明他們是健康的儘管3月份發生了嚴重的漂白事件,襲擊了鷺島,漂白髮生時,熱或水破壞了珊瑚為食的藻類,導致它們變成白色詹姆斯庫克大學最近的一項研究發現,珊瑚礁在過去三十年中失去了一半以上的珊瑚在引起了人們的關注,它不太能從大規模漂白事件中恢復。