Warm water acts as a barrier disrupting fish migration patterns and it is also harmful to fish because of lower oxygen concentration of water.
Step-by-step explanation:
- Releasing warm water into lakes or rivers is equivalent to thermal pollution. It is very harmful for not only fish, but all living organisms that make use of water.
- When water becomes more and more warm, it disrupts the migration patterns of fish. They will be forced to move to different places which have cooler water.
- The most harmful thing about warm water for fish is that it lowers the oxygen concentration in water. When water becomes warm, fish get more active and this requires them to get more energy and more oxygen. But the major problem with warm water is that it carries less dissolved oxygen than cool water. This is malevolent to fish.