Japan marked its annual eel-eating day on Saturday, but market prices for the endangered fish remain high and supermarkets are giving growing prominence to alternatives.The domestic catch of juvenile eels for cultivation fell this season to 3.7 tons, the lowest level since 2003 when comparable data became available, government data showed, while in the period from November to May Japan imported 11.5 tons of young eels, the second-highest amount on record.On what is traditionally referred to as the "day of the ox," many people in Japan eat eel, typically grilled with a teriyaki-like soy-base…READ FULL ARTICLE