漂白和健康的泡沫珊瑚色彩对比，安达曼海

coral (Plerogyra sinuosa) in active coral bleaching shows a stark colour contrast on this Andaman Sea reef, bleached white vesicles on the right colony set against the healthy pink-toned colony to the left. The colour difference marks the point at which zooxanthellae algae expulsion has progressed far enough to threaten colony survival if thermal stress continues. Threespot dascyllus (Dascyllus trimaculatus) move through the frame. 4K, vertical, medium to overhead, scuba diver POV. Ko Haa, Andaman Sea, Krabi Province, Thailand.