scubaseason

Nassau grouper

Epinephelus striatus

Sighting evidence at Dog Island, Anguilla

Nassau grouper

Photo: Bernat Garrigós · © all rights reserved

Nassau grouper are among the most iconic and critically endangered fish of the Caribbean. Once numbering in the millions, targeted spearfishing of their spawning aggregations — where thousands gather predictably at specific reef sites — devastated populations across the region. Remaining populations at unprotected sites like Dog Island represent some of the last sizable aggregations. Solitary ambush predators by nature, they are intelligent fish capable of changing sex from female to male. Their recovery is ecologically critical as keystone reef predators controlling populations of herbivore competitors.

Evidence at this site

No confirmed records on file at this site

Nassau 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.

Also seen at other sites