Surgeonfish in Tropical Coral Reef (IMAGE) University of Hawaii at Manoa Caption A large shoal of herbivorous surgeonfish (Acanthurus triostegus) swims amongst tropical reef corals. Credit Elizabeth Madin, University of Hawai'i Usage Restrictions Image may only be used with appropriate caption and credit. 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.