Surveying the reef (IMAGE) University of Hawaii at Manoa Caption 3D photogrammetry techniques were used to assess ecology of the reef system. Credit Todd Glaser Usage Restrictions Image may only be used with appropriate caption and credit. 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.