金枪鱼 (jīn qiāng yú) Thunnus, Tuna is not an important fish in China. Both Thunnus albacares, Yellowfin Tuna and Thunnus obesus, Bigeye tuna were available a few years ago when there was a craze for “Japanese” sushi restaurants (all Chinese owned and operated) but that has faded.
I’m not even sure if there are any remaining in town. There used to be four in my local shopping mall alone. One supermarket did sell fresh sashimi grade tuna, but hasn’t for a long time. Now I can only buy it online at crazy prices.
Most tuna that is caught, is exported to Japan.
Salmon and Tuna Sashimi
In any case, bigeye tuna is considered to be an endangered species and should be avoided.
Thai Tuna in Olive Oil
Canned tuna in varous oils or water, mainly from Thailand or Korea, is available in speciality stores and online, but is expensive compared to the domestic canned fish I mentioned before.