Pickled fish is a traditional dish made by preserving fish in a solution of vinegar, salt, and spices. This method not only extends the fish's shelf life but also enhances its flavor. Common types of fish used include herring, salmon, and mackerel. Pickled fish is popular in various cuisines around the world, often served as an appetizer or part of a meal. The process of pickling fish involves cleaning and filleting the fish, then immersing it in the pickling solution for a specified period. This technique is especially prevalent in regions with abundant fish, such as Scandinavia and Eastern Europe. Pickled fish can be enjoyed on its own or paired with bread, crackers, or salads.