scubaseason

Japanese Wobbegong

Orectolobus japonicus

Sighting evidence at Izu Oceanic Park, Izu Peninsula

Elaborately fringed wobbegongs lie motionless along IOP's rocky ledges, their flattened bodies and dermal lobes matching encrusted substrate so precisely that divers often nearly touch them before realising. As ambush predators, they lunge at passing fish and crustaceans with explosive speed, playing a key role in controlling benthic fish densities on temperate Japanese reefs.

Evidence at this site

No confirmed records on file at this site

Japanese Wobbegong 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.