![Kiyomura Co\'s President Kiyoshi Kimura (C), who runs a chain of sushi restaurants Sushi Zanmai, poses with a 278kg bluefin tuna, priced with a 333,600,000 yen ($3.1 million) bid at the Toyosu fish market\'s first tuna auction this year at his sushi restaurant in Tokyo, Japan, Jan. 5, 2019. (Photo/Agencies)](http://www.ecns.cn/hd/2019/01/07/550e35a801b444af8fa3008650d6e1c6.jpg)
Kiyomura Co's President Kiyoshi Kimura (C), who runs a chain of sushi restaurants Sushi Zanmai, poses with a 278kg bluefin tuna, priced with a 333,600,000 yen ($3.1 million) bid at the Toyosu fish market's first tuna auction this year at his sushi restaurant in Tokyo, Japan, Jan. 5, 2019. (Photo/Agencies)
![Wholesalers check the quality of frozen tuna displayed during at the Toyosu fish market\'s first tuna auction in this year in Tokyo, Japan, Jan. 5, 2019. (Photo/Agencies)](http://www.ecns.cn/hd/2019/01/07/41a0511b18354a2e8351290ce7823e60.jpg)
Wholesalers check the quality of frozen tuna displayed during at the Toyosu fish market's first tuna auction in this year in Tokyo, Japan, Jan. 5, 2019. (Photo/Agencies)
![A wholesaler checks the quality of frozen tuna displayed during the Toyosu fish market\'s first tuna auction in this year in Tokyo, Japan, Jan. 5, 2019. (Photo/Agencies)](http://www.ecns.cn/hd/2019/01/07/70f4a42d70a64955be4fecebd5c5c490.jpg)
A wholesaler checks the quality of frozen tuna displayed during the Toyosu fish market's first tuna auction in this year in Tokyo, Japan, Jan. 5, 2019. (Photo/Agencies)
![Wholesalers check the quality of frozen tuna displayed during at the Toyosu fish market\'s first tuna auction in this year in Tokyo, Japan, Jan. 5, 2019. (Photo/Agencies)](http://www.ecns.cn/hd/2019/01/07/64563a0e4f304ed38fa7881560f3ab5c.jpg)
Wholesalers check the quality of frozen tuna displayed during at the Toyosu fish market's first tuna auction in this year in Tokyo, Japan, Jan. 5, 2019. (Photo/Agencies)