Dam Useless: Barriers Prevent a Migratory Fish from Reproducing

Inside Climate News · By Lauren Dalban · last updated April 15, 2026 – 1:02 AM

The Bronx River is home to obsolete dams. Plans to remove them could boost efforts to restore dwindling river herring populations.

By Lauren Dalban

The Bronx River was once a curvy waterway that ran through vast forests and flowed into networks of tidal marshland. For centuries, river herring have swum up the waterway from the East River and the Long Island Sound to lay their eggs.

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