Some angling groups argue that the progress of migratory fish is delayed below the barrier as fish have difficulty finding the very narrow entrance to the fish pass and that excessive numbers of foraging seals are taking advantage of this delay and are predating these fish and thus damaging the recovery of salmonids on the Tees.
River Tees | Stockton-on-Tees | Tyne Tees Television | Croft-on-Tees | Thornaby-on-Tees | Tees | Stockton-on-Tees (borough) | Marina Barrage | Yorkshire-Tyne Tees Television | Tidal barrage | Sukkur Barrage | Stockton-on-Tees (south of the river) | Philadelphia Barrage | Barrage balloon | tees | Preston Hall, Preston-on-Tees | Northern Barrage | Hurworth-on-Tees | Dalton-on-Tees | Cardiff Bay Barrage | Borough of Stockton-on-Tees | BBC Tees | barrage balloon | barrage |