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  1. The heated water released into the water bodies has less oxygen.
  2. Thus, thermal pollution leads to de-oxygenation of the water bodies which kill the aquatic organisms.
  3. High temperature of water results in a decrease in the enzymatic activity. Hence, the primary productivity of the water body decreases.
  4. Thermal pollution affects fish population by disturbing reproduction.
  5. Fluctuations in the amount of dissolved oxygen (DO).
  6. Metabolic activity of aquatic organisms is affected.
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