Fishery wholesalers voiced concern about the future of the Tsukiji market, saying Tokyo Gov. Yuriko Koike's plan announced Tuesday is unclear about redevelopment efforts at the current site after the fish market's operations are relocated to the nearby Toyosu site.

"Only a broad plan has been revealed without specifics," Hiroyasu Ito, head of the association of fisheries wholesalers in Tokyo, told a news conference. "I am worried because I can't grasp what the governor thinks about the future of the Tsukiji market."

He also said it is difficult to grasp the governor's idea of having market operations take place at both sites, noting that "two markets cannot work in parallel."