Some organisms, particularly aquatic plants flourish in warmer temperatures, while some fishes such as trout or salmon prefer colder streams 8. As such, it influences the chosen habitats of a variety of aquatic life 8. Water Temperature and Aquatic Life The metabolic rates of aquatic organisms increase as the water temperature increases.Ĭonsidered alone, water temperature can affect the metabolic rates and biological activity of aquatic organisms 14. – Dissolved oxygen and other dissolved gas concentrations – Metabolic rates and photosynthesis production In this regard, water temperature should be accounted for when determining 7: In addition to its own effects, temperature influences several other parameters and can alter the physical and chemical properties of water. Temperature is an important factor to consider when assessing water quality. Why the Temperature of Water is Important Water temperature affects nearly every other water quality parameter. What does that mean for lakes, rivers and oceans? Water temperature has been defined as the “abiotic master factor” by JR Brett due to its effect on aquatic organisms 15. Heat flow and the fluctuation of temperature determine what species will live and thrive in a body of water. Water temperature plays a major role in the quality of aquatic life and habitats. Heat transfer, whether from the air, sunlight, another water source or thermal pollution can change the temperature of water. This energy can be transferred between substances as the flow of heat. Thermal energy is the kinetic energy of atoms and molecules, so temperature in turn measures the average kinetic energy of the atoms and molecules 5. As hot and cold are both arbitrary terms, temperature can further be defined as a measurement of the average thermal energy of a substance 5. The less-dense hot water floats on the more dense room temperature water.Water temperature is a physical property expressing how hot or cold water is.
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