More than 50,000 fish have perished in Northern Ireland's rivers and waterways since 2020, a result of 65 distinct pollution incidents that have severely impacted aquatic ecosystems. The alarming figures highlight ongoing challenges in protecting the region's natural environment, with agricultural pollution identified as a significant contributor.
Fisherman and wildlife photographer Plunket Scullion witnessed first-hand the devastating effects of a slurry spill near Clonoe in June 2022. This single incident in the Torrent River, County Tyrone, led to the death of nearly 4,500 fish and resulted in a fine of just over £6,000, one of the largest penalties for such an event. Scullion described finding hundreds of dead fish, an experience that has since deterred him from returning to fish in the river, noting that the waterway has 'never been the same'.
Data reveals that the majority of these fish deaths occurred in counties Armagh, Tyrone, and Fermanagh. Worryingly, in almost half of the reported incidents, authorities took no further action. The Department of Agriculture, Environment and Rural Affairs (Daera) explained that enforcement action could not be pursued when the source of the pollution remained unidentified.
While agriculture accounts for nearly half of the fish-kill incidents, other sources of pollution include industrial activities and Northern Ireland Water. The Ulster Farmers Union (UFU) acknowledged the seriousness of fish kills and water pollution, emphasising that while agriculture is a factor, it is not the sole cause. They stated that the majority of farmers are committed to their environmental responsibilities, managing nutrients, slurry, and farm infrastructure diligently.
NI Water also commented, asserting that pollution incidents from their assets resulting in fish kills are rare. They confirmed that any such occurrences trigger a multi-team review to implement lessons learned. Since 2020, 30 fish-kill cases have led to prosecutions or ongoing legal proceedings, accumulating £44,000 in fines and remedial costs. These localised pollution events also contribute to broader issues, such as the recurring blue-green algae blooms in Lough Neagh, which are partly caused by long-term pollution flowing in from feeder rivers.