From Nippon.com:
New Coronavirus Affecting Fish Trade in Japan
Tokyo, Feb. 29 (Jiji Press)--The spread of the COVID-19 novel coronavirus has been affecting fish trade in Japan, with, for example, prices of natural tuna and other high-quality fish at Tokyo's Toyosu wholesale market plunging amid falling demand from restaurants and hotels reflecting a decrease in the number of tourists.....MORE
The volume of cultured fish handled at the market in Koto Ward in the Japanese capital has also been dropping as many events have been canceled to reduce the risk of infection.
The moves by restaurants to curb purchases have led to a tumble in the prices of highest-quality domestic natural bluefin tuna. At Toyosu, wholesale prices of bluefin tuna caught off Shizuoka Prefecture, central Japan, and Nagasaki Prefecture, southwestern Japan, stood around 3,500 yen per kilogram in late February, down 30 to 40 pct from a year before....