There are thousands of Hydroelectric power plants. Hydroelectric power plants are cheapest source of renewable energy, and murderer of small fish, like salmon. Electricity is our need, but fish are suffering because of our selfishness. Price of fish in fish market is increasing. Engineers and scientists have come up with many solution, like fish sensor and salmon transport. Fish migration route should be modified and updated. Engineers should built an artificial migration route which would maintain water pressure and make migration easier and safer. For more information read my research paper.

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