Dam removals across the northeastern United States are restoring fish populations by eliminating barriers to migration. The article highlights how removing small dams one at a time is helping ecosystems recover, particularly for species like American shad and alewife that rely on river access for spawning.
Background
The northeastern US has over 5,000 abandoned dams that have blocked fish migration for decades, making it one of the most dam-dense regions historically. Dam removal has become a major conservation effort as technology and funding have made it increasingly viable.
- Source
- Hacker News (RSS)
- Published
- Oct 17, 2026 at 07:47 AM
- Score
- 5.0 / 10