Data Deficient· population decreasing· assessed 2018

Giant Grouper

Epinephelus lanceolatus

Sighting evidence at Lima Rock, Musandam Peninsula

Photo: Ian Banks · CC BY-NC

Among the largest bony fish in the ocean, individuals exceeding 200 kg shelter in the cave systems and overhangs of Lima Rock's deeper walls. As apex predators they regulate mid-water fish populations, keeping reef communities structurally complex. Divers frequently encounter solitary animals resting motionless against the limestone, apparently unperturbed by close approach.

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.

Giant Grouper

Evidence at this site

Also seen at other sites