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How do changes in water temperature around a dam affect the ecosystem in the area?
The ecosystems in an area surrounding a dam tend to be healthier. Plants grow faster and other organisms tend to grow larger.
Warming or cooling the natural river affects the amount of dissolved oxygen in it. Altering natural seasonal changes in temperature can also disrupt the lifecycles of aquatic creatures.
Changes in water temperature can affect the migration of fish and water fowl.
Changes in water temperature can kill plants that live at the water's edge and cause genetic mutations in amphibians that lay their eggs there.
Changes in water temperature can attract predators to a river ecosystem. This can lead to significant decreases in prey populations.