Pacific salmon are a group of fish species found in the northern Pacific Ocean and its tributaries. They belong to the family Salmonidae and include five main species: Chinook, Coho, Sockeye, Pink, and Chum. These fish are known for their remarkable life cycle, which involves migrating from freshwater rivers to the ocean and back to spawn. Pacific salmon are an important part of the ecosystem and have significant cultural and economic value. They serve as a food source for various wildlife, including bears and eagles, and are also a popular catch for commercial and recreational fishing. Their populations are closely monitored due to environmental changes and overfishing.