School of Frontalis Saipan (IMAGE) University of Guam Caption Striking a balance between harvesting large herbivores and predators and allowing for their functional roles in the ecosystem is a major challenge facing reefs in Micronesia. Credit UOG Marine Lab Usage Restrictions None 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.