Tuna & Mackerel
Bigeye Tuna
Thunnus obesus
SaltwaterScombridaeVulnerable
About
Bigeye tuna are a large, pelagic species known for their exceptionally large eyes, which are adapted for hunting in deep, darker waters. They are highly migratory and can tolerate a wide range of temperatures, allowing them to inhabit diverse oceanic environments.
- Average size
- 55-79 inches, 220-400 lbs
- Colors
- Metallic dark blue dorsally, fading to silvery white on the belly. They may have iridescent sides and yellow finlets.
- Diet
- Squid, fish (including smaller tuna), crustaceans
- Region
- Found in all tropical and temperate oceans, including the Atlantic, Pacific, and Indian Oceans. In US waters, they are found in the Atlantic and Pacific.