Triggerfish (IMAGE) Wildlife Conservation Society Caption Orange-lined triggerfish. A recent study by marine scientists from WCS found that triggerfish may play a vital role in helping corals grow, specifically by keeping sea urchins in check. Credit T. McClanahan/WCS. Usage Restrictions One-time usage only. 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.