Brown grouper

Epinephelus marginatus

Sighting evidence at Grotta delle Rondinelle, Tremiti Islands

Photo: erythro07 · CC BY-NC

The most iconic large predator of the Tremiti reserve, brown grouper (dusky grouper) are protected here and have grown to impressive sizes — individuals exceeding 50 kg have been documented in the archipelago. They are solitary and strongly territorial, favouring the deeper outer wall sections of the cave and the large boulders below, where they hunt fish and cephalopods. Their presence in high numbers is a direct indicator of the reserve's effectiveness.

Evidence at this site

0 records within 25 km

Confidence: low

No date on file

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

Lisca Bianca→