Chinook Salmon (Oncorhynchus tshawytscha) are the largest Pacific salmon species, prized for their size, rich flavour, and high omega-3 content. They are native to the North Pacific, inhabiting coastal rivers and estuaries during spawning and migrating to the ocean for growth. Known as "king salmon," they are a vital resource for fisheries and ecosystems. Commonly farmed in countries like New Zealand, their diet includes small fish, crustaceans, and plankton​