FOCE Calcification (IMAGE) Smithsonian Tropical Research Institute Caption A member of the team snorkeling at low tide to sample the seawater in each chamber (there is a carabiner of sampling syringes around his arm) and to temporarily insert guillotine style doors in order to seal the chamber for 2 hours in order to measure the corals rates of calcification/dissolution and photosynthesis/respiration. Credit David Kline Usage Restrictions For use with this release. For higher resolution photos, contact David Kline, klined@si.edu 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.