Corals in tank (IMAGE) Penn State Caption The researchers studied measured skeletal growth, total mass increase and calcification rates — or the rate at which corals produce calcium carbonate, which is a measure of their growth — in controlled tank environments under different temperature regimes. Credit Matthew Aschaffenburg Usage Restrictions Educational use only License Original 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.