Why warm water holds less oxygen? How water temperature affects growth of aquatic organism.

Hello everyone:
      Today we will see about some of the intresting views about dissolved oxygen in water. 
Are you heard about that? 
    Warm water holds less oxygen than cold water. Did you thinked why? 

Here is the answer for that... 
   Yes, it is correct, warm water holds less oxygen than cold water. The temperature of water greatly varies from season to season. Water temperature is greatly influenced by solar radiation. 
   During higher temperature, the biochemical reactions occurs faster in water. The activity of organism, metabolism, respiration are getting increased. They also cause increase in water temperature through respiration. 

     In higher the temperature of water, the movement of particles and matters in water gets react very fastly and pulls the oxygen molecules into atmosphere. This is why the warm water holds less DO than cold water. 

  The growth of animals will be higher at certain increased temperature but it will be not a constant growth.
    If the temperature of water increases further then it completely affects the growth and leads to death of organism. 
     The working of immune system depends on optimum water temperature.
     If water temperature varies, certain pathogens which may virulent at that temperature affects the aquatic organism. 
     The increasing in water temperature may forms stratification layer in water.. Maintenance of depth below 2 meters is important to regulate aeration and prevents stratification layer in water. 

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Thanks and regards, 
P. Dhivagar BFSc, 
+91 9384346193

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