Pacific bluefin tuna (Thunnus orientalis) is a saltwater, brackish species recorded in Taiwan, United States. It is found at depths of 1–550 m. The main season in Taiwan, United States runs spring, summer.
Scientific name: Thunnus orientalis · Water: Saltwater, Brackish · Season: Spring, Summer
Size: up to 300 cm
The Pacific bluefin tuna is a scombrid and an epipelagic species, usually oceanic but seasonally coming close to shore, and it tolerates a wide range of temperatures. It schools by size, sometimes with other scombrids, and is a voracious predator that feeds on a wide variety of small schooling fishes and squid as well as crabs. Between June and September it migrates northward along the coasts of Baja California and California. In season in summer, it ranges from the surface to about 550 m, and reaches about 300 cm fork length, commonly 200 cm, and up to about 450 kg, living about fifteen years. It is a highly commercial species with commercial aquaculture and is also a game fish, selling in the highest price band. IUCN lists it as near threatened. Trophic level is 4.5, fishing vulnerability very high at 76 of 100, climate vulnerability moderate at 38, and resilience medium.
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