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Introduction How Rivers Run Stories Value Of A River What We Can Do
Quality of a River - Water Quality
Temperature (pg 2 of 5)

Temperature governs other basic properties of water, such as surface tension and density. Thus, temperature influences the rate of evaporation, infiltration, and percolation through sediments. Temperature also governs the type and rates of chemical reactions in water.

Temperature influences stream life. It triggers periods of migration, growth, and dormancy. It governs the rate of metabolism, chemical processes, and determines when habitats are suitable for specific life stages of species.

Water temperature affects the type and abundance of algae. At the same nutrient level, green algae tend to dominate at higher temperatures while diatoms decline. At the highest temperatures, blue-green algae thrive and often develop into heavy outbreaks or "blooms" (Dunne and Leopold, 1978). Artificially higher water temperature usually results in less desirable types of algae in water.


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Introduction
Flow
Shape
Connections
Quality
Description
Temperature
Oxygen
Alkalinity
Nutrients
Sediment
Contaminants
Status
Life
Summary
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