Holy crap. So coral bleaching in that area is basically guaranteed at this point. And some plankton and algae can’t really survive if those temperatures persist.
Also, as temperature rises, water holds less and less dissolved oxygen. At the same time metabolic rates of fish increase, which makes them require even more oxygen. The scary thing about that is at some point they lose the ability to get enough oxygen to sustain life, and then bam — the whole species dies in a day.