High Marsh (IMAGE) Virginia Institute of Marine Science Caption High-elevation marshes are more vulnerable to sea-level rise, but grow more resilient as they succumb to rising waters and are replaced by low marsh. Credit © M. Kirwan/VIMS. Usage Restrictions One-time use 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.