Nassau grouper spawning aggregation (IMAGE) University of California - San Diego Caption Nassau grouper spawning aggregation off Little Cayman, Cayman Islands. Males release sperm around a female in a spawning burst up from the reef. Credit: Jason Belport (Grouper Moon Project) Credit Jason Belport (Grouper Moon Project) Usage Restrictions Must use credit information 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.