Iceland's volcanic eruption and the ensuing flight chaos have impacted Japan's sushi industry, with seafood traders looking as far as New Zealand to make up a shortfall in imports of Norwegian salmon.
Japan usually sources 90 percent of the prized Atlantic salmon from the Scandinavian country, much of it by air cargo, but stocks have run low since flights have been grounded because of the massive volcanic ash cloud.
"Absolutely nothing is coming our way. I'm praying that the disruption ends soon," said a trader in Tokyo's Tsukiji fish market, the world's largest.
Only three small salmon fillets were in the chilled display case of his tiny store, which usually sells about 20 kilograms (44 pounds) of the fish every day, according to the seller who asked not to be named.
The Tsukiji seller said that from Friday he would start receiving shipments from New Zealand of the popular fish, which is served raw as sashimi slices or grilled, while its roe is commonly used as a topping.
A major importer, Saihoku Fisheries Corp, which buys 2,000 tonnes of Norwegian salmon a year, said it had lost 30 million yen (324,000 dollars), or roughly a third of its monthly revenue, in a matter of days.
The company usually receives boxes of fresh salmon, rather than the more common snap-frozen shipments, via air cargo four times a week, said Mitsunori Ota, who manages the company's overseas operations.