Steelhead Trout and Similar Species
Oncorhynchus mykiss irideus
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Open the appSeveral fish can be confused with Steelhead Trout. Here are the key differences.
Species often confused with {name}
Resident Rainbow Trout
Oncorhynchus mykiss
Key differences: Resident Rainbow Trout typically do not migrate to the ocean, are generally smaller, and often retain a more pronounced red or pink lateral stripe and darker overall coloration throughout their life, lacking the bright silvery sheen of ocean-phase Steelhead.
Cutthroat Trout
Oncorhynchus clarkii
Key differences: Cutthroat Trout possess a distinctive red or orange slash mark in the fold of the lower jaw, which Steelhead lack. Their spotting pattern can also differ, often being more concentrated towards the tail.
Coho Salmon
Oncorhynchus kisutch
Key differences: Coho Salmon typically have a white gum line where the teeth meet the jaw, which Steelhead lack. Coho also have spots primarily on the upper lobe of the caudal fin, whereas Steelhead spots are more evenly distributed on the caudal fin.
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