How can dam removal help endangered salmon populations?

Dam removal is a critical conservation strategy used to restore salmon populations by eliminating physical barriers that impede their natural migration cycles. While technologies like fish ladders and locks were designed to help fish navigate dams, they have often proven insufficient to sustain healthy populations as more dams are constructed along river systems.1

Removing dams provides several ecological benefits for endangered salmon:

• Restoration of Spawning Grounds: Dams often block access to essential upstream spawning habitats. Removing them reconnects these areas, allowing salmon to reach historical breeding grounds.1
• Safe Passage: Dams can cause significant mortality for both adult salmon migrating upstream and young salmon traveling downstream to the ocean. By removing these structures, the risk of injury or death from turbines and other dam infrastructure is eliminated.1
• Revitalization of Ecosystems: The removal of dams, such as the Edwards Dam on the Kennebec River, has been shown to help revitalize fish populations that were previously threatened by the destruction of their natural habitats.1

Prioritizing the removal of dams is an essential ethical commitment to preserving biodiversity and ensuring the survival of native species that have been pushed toward extinction by human-made obstructions.1