Like sea breams, there are many different emperors. They look a lot like snappers, and are closely related, the difference being that emperors are species from the family lethrinidae and snappers from the family lutjanidae. Just to further confuse, there is a fish called emperor snapper although it is a member of the lutjanidae family. Ranging from 300g to 1kg, varieties of emperor include longnose, snub-nose, spangled (also known as capitaine or blue emperor) and yellowtail. When it comes to cooking, while emperor doesn’t have quite as strong a flavour as snappers, it can be cooked in the same way.