Disadvantages of water energy
5. Destroys aquatic life:
The fish’s habitat is shaped by the flow of water, water velocity access to food and shelter. The amount of water in the river is also a factor for the growth of fish in their life cycle. Completely draining the water from rivers may obviously kill the fishes. The construction of dams actually blocks or delays the migration of fishes from freshwater to seawater and the reverse. This may lead to the decline or extinction of the species. Many fishes which live in fresh water migrate to sea for reproduction and the reverse happens in many cases. This cycle gets completely disturbed by the construction of dams. The anadromous or catadromous stocks gets heavily affected due to the habitat loss, alteration, change in water temperature, increased pressure in water which are caused by the construction of dams.