White tuna refers to albacore tuna, also called albacore tuna.

Its appearance is spindle-shaped and its skin is relatively smooth. The fins are streamlined, and the two dorsal fins are of different colors. The first dorsal fin is dark yellow, and the second dorsal fin is light yellow. The caudal fin is thin and flat. The pectoral fins on both sides are very long, the back has a dark blue metallic luster, which is relatively bright, and the edges and abdomen of the fish are silvery white.

Survival habits

A migratory fish in the middle and upper layers of the ocean. Mainly active in waters below the thermosphere, the habitat depth can reach 600 meters. The water temperature is often between 17℃ and 21℃ (minimum 9.5℃). Vertical distribution often occurs due to changes in water temperature. It feeds on small migratory fish, such as mackerel, and also preys on crustaceans and cephalopods.

Food includes: saury, anchovies, planktonic crustaceans, squid, Japanese anchovies. Food habits change seasonally depending on the region. Anchovies make up 96% of their diet at any one time, and some studies have found that albacore tuna will attack dispersed schools of anchovies and migrate vertically through the water day and night to chase their prey.

Natural enemies: sharks, rays, manta rays, large tuna, and billfish.