Scuba Season
Least Concern· population trend unknown· assessed 2023

Dogtooth Tuna

Gymnosarda unicolor

Sighting evidence at Late Island Wall, Vava'u, Tonga

Dogtooth Tuna

Photo: Harry Rosenthal · CC BY-NC

Dogtooth tuna are apex pelagic predators that use the Late Island wall as an ambush point, stationing themselves in the blue water off the drop-off and accelerating into baitfish schools with explosive bursts of speed. Their mass — regularly exceeding 60 kg — and the frequency of encounters at Late make this one of the most reliable sites for this species in the Tongan archipelago.

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