Water is a salmon's home. It has oxygen to breath and food to eat. Salmon live in both fresh water and salt water.
Water is the most obvious and also the most important part of a stream.
Although fish are always under they are able to extract air from the water using their gills. The water is also home to many insects and larvae which salmon eat to survive. Salmon live in fresh water such as creeks and rivers when they are first born. They will swim down stream to live in the saltwater of the open ocean for much of their life once they reach their smolting age. After their ocean voyage and adulthood has been reached, they will return to their fresh water streams of origin to spawn and lay eggs, completing their life cycle.