Photo 3 (IMAGE) Bigelow Laboratory for Ocean Sciences Caption A Dominican spearfisherman tows his catch, comprised solely of parrotfish. Parrotfish are one of the species that play a key role in keeping reefs well-grazed following disturbances such as hurricanes or coral bleaching events. Credit José Alejandro Alvarez 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.