Japanese "unagi" eel raised entirely in captivity, from egg to full maturity, is available commercially after years of development. Falling catches in the wild have put the delicacy on a slippery ...

Eel is far from the most common variety of fish to pop up on the menu at the majority of U.S. seafood restaurants, but it is a mainstay at sushi joints. Unagi — the Japanese word for eel — is a common ...