More than 18,000 immature fish have been expelled over a past dual weeks to inspire angling.
The Environment Agency pronounced releasing a fish would revive rivers and lift income by a sale of rod licences.
Breeds including barbel, bream and roach have been expelled opposite Teesside, County Durham and Northumberland.
The fish were reared during a agency’s inhabitant plantation nearby Calverton, Nottinghamshire.
In Darlington, some-more than 1,600 barbel were expelled into a River Tees during Broken Scar and some-more than 2,300 roach into a River Skerne during South Park.
The group also put roughly 2,000 bream and 1,300 rudd into Lockwood Beck, nearby Guisborough.
A serve 11,000 roach, bream, tench, crucian canopy and rudd were expelled opposite Greencoft Pond nearby Annfield Plain, Wellfield Lake nearby Wingate, Hebron Lakes nearby Morpeth, Dissington Pond nearby Ponteland, Wydon Water during Hexham and Whittle Dene fountainhead during Harlow Hill.
Fisheries officer Paul Frear said: “Restocking is one of many things we do together with a partners to rise fisheries, including shortening a impact of pollution, improving habitats and stealing barriers to fish migration.
“We wish it will inspire some-more people to get out and suffer fishing on a North East’s pleasing rivers.
“We aim a work to rivers that might have suffered from prior wickedness incidents or where there are barriers for fish passage.”