Spawning Aggregations (SPAGs) monitoring for Nassau Grouper (Epinephelus striatus) is conducted annually from November to February, while monitoring for Snapper species (Cubera, Mutton, and Dog Snapper) takes place from March to June at Gladden Spit and Silk Cayes Marine Reserve (GSSCMR).
These monitoring activities require trained data collectors and advanced open water divers, who conduct two dives per day during the full moon period. During each dive, information on the size, species, abundance, and spawning behavior of aggregating fish is recorded. In addition, environmental parameters such as wind direction, current direction and speed, and water temperature are documented to enhance understanding of spawning activity at the site, located in the pelagic region of the Whale Shark Zone.