Powan is a freshwater fish belonging to the salmon family, found in Scotland's lochs and lakes. Popular synonyms for powan include Schelly, Vendace, and Coregonus; which are alternative names used in different regions around the world. Vendace is particularly common in northern Europe, while Schelly is used in North America. Several other synonyms such as Pollan, Houting, and Fresh-water Herring are also used in Scotland and Ireland, where these fishes are considered a delicacy. Powans are sought after for their rich flavor and texture, which makes them an essential ingredient in various traditional dishes, especially during festive occasions.