Least Concern· population trend unknown· assessed 2018

Potato grouper

Epinephelus tukula

Sighting evidence at Cathedral Caves Mauritius, Mauritius

One of the largest groupers in the Indian Ocean, the potato grouper can exceed 2 metres and 100 kilograms. It is a solitary apex predator that holds a home territory around a specific cave or outcrop, often for years. Slow and curious, it will approach divers closely. Despite its size, it hunts with explosive speed, engulfing prey in a single strike. Listed as vulnerable due to overfishing across much of its range.

Evidence at this site

No confirmed records on file at this site

Potato grouper 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.