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Columbia River Steelhead | Life Cycle, Conservation & Facts
Columbia River steelhead (Oncorhynchus mykiss) are one of the most remarkable fish in North America — a migratory form of rainbow trout that travels between freshwater and the Pacific Ocean, and uniquely, can survive spawning and return to the ocean to spawn again. This guide covers their complete life cycle (spawning, juvenile development, smoltification, oceanic stage, return migration), the threats they face (dams, habitat loss, climate change), conservation efforts, and their nutritional profile as a premium seafood.