St. John Reef Communities (1 of 3) (image) University at Buffalo Caption These are gorgonian coral-dominated coral reef communities at St. John, US Virgin Islands. Stony corals are present but much of the three-dimensional structure of the reef community is created by the gorgonian corals. Credit Howard Lasker Usage Restrictions This image may only be used in conjunction with news stories covering the associated research. 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.