Mike
McMahon
Most aquatic organisms operate within an optimum range of temperature. Temperature affects dissolved oxygen, photosynthesis and the sensitivity of many organisms to toxins, parasites or disease. In Hawai‘i, concrete channelization, flow, and total suspended solids play an important part in raising stream temperature.
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Temperature 
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;Aquatic Life
Water Quality
Temperature of water is a very important factor for aquatic life. It controls the rate of metabolic and reproductive activities, and determines which fish species can survive. Temperature also affects the concentration of dissolved oxygen and can influence the activity of bacteria and toxic chemicals in water.