Over recent years we have received increased reports of salmon and sea trout showing Saprolegnia infections. This fungal-like condition is naturally occurring and low level infections are completely normal to observe. Heavier infections can, however, appear unsightly and have been linked to significant fish losses on some rivers.
We continue to monitor the status of Saprolegenia in our rivers, and are working with Cardiff University on a partnership project to help improve understanding of these infections and the factors linked to increased disease levels. If you see signs of fish in distress please report it to the EA incident hotline: 0800 80 70 60.