DIssolved+Oxygen


 * Dissolved oxygen** is important because every living organism breathes the oxygen that is in the water. Without dissolved oxygen the fish,mammals,and organisms would not be able to eat other animals because they will die then those animals will die. Therefore the food chain will be broken. Isaac S. Remy


 * Dissolved oxygen**, or **DO**, is important in any aquatic ecosystem because almost all living organisms, including algae and macrophytes survive on oxygen just like us. Also, oxygen is key in many chemical reactions crucial to body of water's functioning. -Choji (AwesomeBeast)

All aquatic animals require **dissolved oxygen** in the water they live in. Dissolved oxygen levels are affected by water temperature, turbidity, dying plants and animals in the water, and aquatic plant growth. High water temperature causes the oxygen level to go down. An example of this is the Kettle River. Last summer we were swimming in a big pool in the river and I found a 20" dead trout and some smaller ones. The water temperature was very warm - around 70 degrees - and that is why the fish died. - Casey McHugh