what kind of fish is a steelhead
Steelhead Trout Salmon. Steelhead and Rainbow Trout are the same species of fish. The difference between the two are that the rainbow trout remain in fresh water, while the steelhead are anadromous â living in both fresh water and the ocean for parts of their lives.teelhead trout were recently reclassified as part of the salmon genus Oncorhynchus. Like other salmon, Steelhead return to their birthplace to spawn. Unlike other salmon, Steelhead do not die after spawning. Steelheads have an average size of eight to eleven pounds, and can reach an adult weight of up to forty pounds.