Electrofishing Surveys The Foundation, along with partners the Environment Agency and Natural Resources Wales, conduct yearly electrofishing surveys throughout the Wye and Usk catchments to record fish densities. This is vital information in helping us assess the health of the catchments. Results of the 2021 Wye & Usk Electrofishing Surveys River Wye Average number of juvenile salmon caught in 5 minute surveys Distribution and number of juvenile salmon Average number of brown trout caught in 5 minute surveys Distribution and number of brown trout River Lugg Average number of juvenile salmon caught in 5 minute surveys Distribution and number of juvenile salmon Average number of brown trout caught in 5 minute surveys Distribution and number of brown trout River Usk Average number of juvenile salmon caught in 5 minute surveys Distribution and number of juvenile salmon Average number of brown trout caught in 5 minute surveys Distribution and number of brown trout Further Reading on Electrofishing: Another Bad Year For Salmon Catches Twentyfold Increase in the Elan’s Salmon Fry since 2016 2019 Electrofishing Surveys Complete