scubaseason

Lionfish

Pterois volitans

Sighting evidence at Sanko Maru, Rabaul

Lionfish

Photo: 808_Diver · CC BY-NC

Lionfish are apex ambush predators on the Sanko Maru, hovering motionless in the shadowed doorways of cargo holds where glassfish swarm. Their venomous spines make them virtually immune to predation on the wreck, allowing individuals to hold the same territory for years. At dawn and dusk they drift out over the deck to hunt, spreading their pectoral fins wide to corral small fish against the rusted steel.

Evidence at this site

No confirmed records on file at this site

Lionfish 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