Steelhead salmon are a type of fish belonging to the Salmonidae family. They are known for their distinctive silver skin and pinkish stripe along their sides. Steelhead are unique because they can live both in freshwater and saltwater, migrating between the two environments. These fish are native to the Pacific Ocean and its tributaries, primarily found along the coasts of North America and Asia. Steelhead are popular among anglers due to their fighting ability and are often sought after for sport fishing. They are also an important species in their ecosystems, contributing to nutrient cycling.