scubaseason

Easter Island Chromis (endemic)

Chromis randalli

Sighting evidence at Motu Nui Pinnacle, Easter Island

Randall's chromis is an Easter Island endemic found nowhere else in the world, forming dense schools around the upper pinnacle and reef structure in water as shallow as 5 m. It is a planktivore that feeds in the water column above the reef and retreats to shelter among coral branches when threatened. Its presence is a biological signal of Easter Island's remarkable isolation — the island has the highest proportion of endemic marine fish species of any location in the Pacific.

Evidence at this site

No confirmed records on file at this site

Easter Island Chromis (endemic) 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.