scubaseason

Moorish Idol

Zanclus cornutus

Sighting evidence at La India Reef, Huatulco

Moorish Idol

Photo: David R · CC BY-NC

Moorish idols congregate around La India in loose groups of 5 to 30 individuals, grazing on encrusting sponges and bryozoans across the pinnacle's upper surfaces. Their elongated dorsal filament and bold black-and-yellow banding make them one of the most visually striking species on the reef. Spawning aggregations form near the surface in late summer, drawing the fish into unusually dense, photogenic clusters.

Evidence at this site

No confirmed records on file at this site

Moorish Idol 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