Giant grouper
Epinephelus lanceolatus
Sighting evidence at King Cruiser Wreck, Phuket
Photo: Ian Banks · CC BY-NC
The giant grouper is the largest bony fish in coral reef ecosystems, reaching 2.7 m and 400 kg. The King Cruiser wreck hosts a resident individual near the engine room that local divemasters have documented for over a decade. Grouper are site-faithful and their sustained presence on a wreck signals stable prey populations within the structure.
Evidence at this site
No confirmed records on file at this site
Giant grouper is listed as a curated species here based on historical reports.