The section of the river Ouse that stretches past Linton Lock is a popular local fishing location and holds a large variety of fish species with prevalent runs of migratory salmon, sea trout, lamprey, chub, barbel, pike and roach. The weir at Linton Lock currently presents a challenging barrier to fish that undertake upstream migration at spawning time. Although there is an existing fish pass at the weir, it is dilapidated and inefficient for most of the fish species attempting to migrate upstream. This has a negative impact on fish populations in the river Ouse catchment, particularly salmon, sea trout, eels and lamprey.
As well as improving the existing fish pass to bring it in line with best practice standards, new best practice multi species fish passes including lamprey and eels passes will be installed alongside the hydro power turbines, which will allow migratory fish species to continue migrating upstream to reach historic spawning habitat higher up the Ouse catchment.