After Maryland removed Bloede Dam in 2018, herring DNA appeared upstream; biologists recorded two adult herring there in 2021, after over a century
After Maryland removed Bloede Dam in 2018, herring DNA and two adult fish turned up upstream on the Patapsco River, an early but hopeful sign of recovery.
We haven't written up this one. Hindustan Times - World News has the full story — the link below goes straight to it.