Fish and eels now have access to an extra 5,000 metres of the River Wensum thanks to a new fish pass
The fish pass, which has been installed at Hellesdon Mill in Norwich, will help all fish species migrate upstream of the mill.
Manufactured structures like mills, weirs and sluices can prevent fish from moving freely around the river so if it is not possible to remove an obstruction, a fish pass is a favourable option.
Jez Wood, a fisheries specialist at the Environment Agency in East Anglia, said:
The European eel is a critically endangered species. There are many reasons for this but there is evidence to show that barriers preventing migration has an impact on the species.
Numbers have fallen 95% over the last 30 years but by adding fish passes the Environment Agency helps this protected species to continue its fascinating life cycle.