Green macroalga caulerpa prolifera (VIDEO) Florida Atlantic University This video is under embargo. Please login to access this video. Caption The green macroalga Caulerpa prolifera has replaced seagrass in parts of Florida's Indian River Lagoon. Credit FAU Harbor Branch Usage Restrictions Credit: FAU Harbor Branch License Original 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.