Dogtooth tuna
Gymnosarda unicolor
Sighting evidence at North Atoll Wall, Tubbataha Reefs
Photo: Luis P. B. · CC BY-NC
Among the fastest and most powerful predators on Indo-Pacific walls, dogtooth tuna cruise the blue water column off drop-offs at Tubbataha hunting schooling fish. Unlike most tunas they are solitary or in small groups, and their torpedo shape and striking white-tipped dorsal make them instantly recognisable. They appear most reliably when strong currents channel baitfish against the wall, often triggering brief, explosive predation events that cascade through the water column. A thrilling, unpredictable encounter on every North Atoll Wall dive.
Evidence at this site
No confirmed records on file at this site
Dogtooth tuna is listed as a curated species here based on historical reports.