Orange roughy is a type of deep-sea fish that is highly prized for its delicate flavor and flaky texture. It is also known by a variety of other names, including red roughy, deep-sea perch, and slimehead. In some markets, it is marketed under the name of sea perch or ocean perch. These synonyms are often used interchangeably, depending on the region and the type of cuisine. However, regardless of the name, orange roughy is a versatile fish that can be prepared in a variety of ways, including grilling, baking, and poaching, making it a popular choice for seafood lovers around the world.