Scuba Season
Data Deficient· population decreasing· assessed 2018

Giant grouper

Epinephelus lanceolatus

Sighting evidence at King Cruiser Wreck, Phuket

Giant grouper

Photo: Jean-Paul Cassez · 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

0 records within 25 km

Confidence: low

No date on file
How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites