Chinook Salmon, Oncorhynchus tshawytscha are supported by California streams. Chinook salmon ("Oncorhynchus tshawytscha") continue to survive in Putah Creek. Chinook salmon ("Oncorhynchus tshawytscha") express one of two fixed alternative reproductive tactics. Chinook salmon ("Oncorhynchus tshawytscha") were introduced from California in the 1900s and persist today. Chinook salmon ("Oncorhynchus tshawytscha") were introduced from California in the 1900s for game fishing. The Chinook salmon ("Oncorhynchus tshawytscha") is the largest species in the Pacific salmon genus "Oncorhynchus". Chinook salmon ("Oncorhynchus tshawytscha"), and coho salmon ("Oncorhynchus kisutch").