JoshuaInNippon writes: Japanese scientists at the National Research Institute of Aquaculture, Fisheries Research Agency have reported that they successfully completed an artificial cultivation cycle for unagi, or eel, a world first. Unagi is a traditional delicacy in Japan, and can commonly be found in baked-form at sushi restaurants. The fish has long been caught either matured, or still young and then fattened on farms. Sadly as a result, natural stocks of unagi have plummeted in recent years. However, the research news has indicated a future method to completely farm breed the tasty creature in mass quantity. Good news for sushi-lovers, Japanese businesses, and wild eel alike.