Ocean deoxygenation threat to coral reefs (IMAGE) University of Technology Sydney Caption A unique stress experiment aligned deoxygenation stress to the natural night-day cycle of common reef-building corals from The Great Barrier Reef. Credit Morgan Bennett-Smith Usage Restrictions Use image only with this story and credit image. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.