Yellowfin Tuna

Yellowfin tuna (*Thunnus albacares*) is a large, highly migratory tuna species found in tropical and subtropical waters of the Atlantic, Pacific, and Indian Oceans.

Yellowfin tuna (*Thunnus albacares*) is a large, highly migratory tuna species found in tropical and subtropical waters of the Atlantic, Pacific, and Indian Oceans. It is known for its torpedo-shaped body, dark blue back, yellow fins, and importance in commercial and recreational fisheries. The species is also called ahi in some regions, including Hawaii.

Description

Yellowfin tuna are large, streamlined fish with torpedo-shaped bodies built for sustained swimming. Their distinctive coloration includes a dark blue back, metallic sides, and bright yellow dorsal and anal fins. The species is identified by a dark blue back, silver-to-yellow underside, and bright yellow fins and finlets.

Distribution and habitat

Yellowfin tuna are a pelagic species found in tropical and subtropical waters of the Atlantic, Pacific, and Indian Oceans. They inhabit open-ocean, near-surface habitats and are highly migratory, capable of moving across entire ocean basins. The species is absent from the Mediterranean Sea.

Biology and behaviour

Yellowfin tuna are fast-moving pelagic predators that feed on fish, squid, and crustaceans. They often form schools, especially when young, and are able to reproduce at relatively young ages. Their lifespan is about 6–8 years.

Fishery and human use

Yellowfin tuna are one of the most commercially important tuna species. They are widely caught for fresh, frozen, and sashimi markets, and are also targeted by sport fisheries in some regions.