Bigeye Jack
Caranx sexfasciatus
Sighting evidence at Dakar Artificial Reef, Senegal
Photo: Mark Rosenstein · CC BY-NC
Bigeye jacks form spectacular spiraling schools around the reef modules, hunting cooperatively to herd baitfish against the artificial structure before charging through the panicked shoal. Their large eyes are an adaptation to crepuscular and night-time feeding, and dawn and dusk dives at the Dakar reef produce the most intense schooling activity. Populations here are thriving, benefiting from the artificial structure's role as a fish aggregation device.
Evidence at this site
No confirmed records on file at this site
Bigeye Jack is listed as a curated species here based on historical reports.