Scuba Season
Least Concern· population trend unknown· assessed 2018

Common Octopus

Octopus vulgaris

Sighting evidence at Wreck of the Ulysses, Djerba

Common Octopus

Photo: Lorenzo Formoso · © all rights reserved

Octopuses den prolifically in the wreck's corroded cavities, using the sheltered metalwork as ideal ambush territory. They are apex invertebrate predators on the reef, controlling crab and bivalve populations across the surrounding sandy rubble. Juveniles are frequently spotted on night dives emerging to hunt under cover of darkness.

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