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While coral bleaching is a well‐known consequence of marine heatwaves, rapid coral mortality via tissue disintegration is an understudied threat; one that precludes any chance of recovery. We show that tissue disintegration can occur within hours to days of acute heat stress, marking a critical survival threshold. Micro‐scale oxygen measurements indicate rapid deoxygenation of coral tissue immediately preceding tissue disinteg...
Oxygen Supersaturation Could Protect Reef‐Building Corals Against Acute Thermal StressNARA Subscribed
Ongoing climate change is constraining the availability of molecular oxygen (O 2 ) on coral reefs. The field has recently invested considerable resources to quantify the effects of hypoxia on corals. However, drivers of reef oxygen decline will not only expose corals to more frequent episodes of hypoxia but also limit peak daytime oxygen levels. Here, we test the theory of oxygen‐mediated thermal performance on three reef‐buil...
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