Streams and rivers

The next biome i would like to talk about is the the Streams and rivers biome. First of all streams and lakes can be found most places. The may start from headwaters, spring water in other words. Another way is the ocean where the lakes and rivers get there water from. When water is traveling from the ocean or natural spring waters on the journey the water would be more cleaner then what it is Before and the water would be much cooler also. When water is this clean, Fish and other living organisms are required less oxygen in water.