It is reported on the Internet that due to the conflict between Russia and Ukraine,  sweet shrimp is seriously out of stock

A local Japanese food restaurant boss told reporter the the most severe shortage of supply in Hangzhou's mid-to-high-end Japanese food stores is Russian sweet shrimp. Many people think that the Sea of Japan is the main producing area of sweet shrimp. In fact, the sweet shrimp produced in Russia, because of their large size (which can reach LLLL level) and full of meat, has become a popular sashimi ingredient in the market at present.