scubaseason

Moray Eel

Gymnothorax javanicus

Sighting evidence at South Reef, Pigeon Island

Moray Eel

Photo: Luis P. B. · CC BY-NC

Giant moray eels occupy crevices throughout South Reef's coral bommie field, reaching lengths of up to 3 metres and living in loose mutualistic association with cleaner shrimps that groom their skin and gills. They are ambush predators of fish and cephalopods, most active at dusk and dawn, but reliably visible during daylight hours with their heads extended from rocky lairs. Their gaping mouth behaviour is a respiratory action, not a threat display, and relaxed divers can observe them at very close quarters.

Evidence at this site

No confirmed records on file at this site

Moray Eel is listed as a curated species here based on historical reports.

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