A company affiliated with the city of Kamaishi, Iwate Prefecture, is preparing to breed sturgeon in a local facility and sell homegrown caviar.

Officials of the company, Sunrock, said their operation marks the first time a consistent mechanism from the rearing of the fish -- a large ganoid freshwater and marine fish with edible flesh -- to the sale of its roe will be employed in Japan.

The sturgeon will be bred in an idle Nippon Steel Corp. water tank 20 meters long and 10 meters wide which was originally intended to clean waste water.