According to the 2025 Atlantic Salmon Stock Assessment, published by the Environment Agency, Cefas and Natural Resources Wales, salmon numbers in England have fallen to their lowest point since records began. The assessment says 95% of principal salmon rivers are now below the level needed to sustain their populations, up from 88% in the previous year. That matters because principal salmon rivers are the main catchments used to judge whether stocks can replace themselves over time. Environment Agency chief executive Philip Duffy described the figures as stark, and the published data shows the position moving further away from recovery rather than closer to it.
The assessment also sets out how sharply marine survival has weakened. In earlier periods, around 15 to 20 young salmon out of every 100 leaving rivers for the sea would return as adults. The latest position is closer to one or two. The agencies stress that this is not an England-only problem. Similar falls are being recorded across the North Atlantic, which means part of the pressure sits at sea and outside the control of any single regulator or government. The Environment Agency’s statement says it will continue pressing for international action on marine threats, while also taking domestic action because poor water quantity, poor water quality and damaged habitat are all linked to weaker stocks in England.
For policy readers, the key point is not only the diagnosis but the formal response. As part of reporting to the North Atlantic Salmon Conservation Organisation, the Environment Agency says it has set new commitments to address those three river pressures by 2032. In plain English, that puts salmon recovery inside a defined regulatory timetable. Water management, pollution enforcement and habitat works are no longer presented as separate conservation schemes; they are framed as measurable actions tied to an international reporting commitment.
On water quantity, the agency says it will restore 2,282 hectares of peatland and improve river flows below reservoirs so that salmon rivers retain enough water during dry periods. It also says it will monitor water companies and other abstractors more closely to check that removals do not exceed what rivers can support. That is an important signal for utilities, reservoir operators and catchment managers. Salmon recovery is being linked directly to how much water remains in the river system, not only to fish-specific projects. Where summer low flows, over-abstraction or altered reservoir releases reduce usable habitat, the assessment indicates that stock recovery is less likely.
On water quality, the Environment Agency says it will continue increasing inspections of farms and wastewater treatment works, while funding more than 800 projects intended to reduce pollution from wastewater. The wording in the announcement is notable because it combines restoration spending with a clearer enforcement message on pollution and illegal water abstraction. For regulated sectors, that points to tighter scrutiny rather than a purely voluntary approach. Water companies, agricultural operators and other licence holders are being put on notice that salmon policy will be judged partly through compliance activity, not only through long-term environmental programmes.
Habitat and river access form the other major strand of the plan. By 2032, the agency says it will clear or improve 105 barriers that prevent salmon reaching spawning grounds, restore habitat at 252 sites and plant trees along 648 hectares of riverbank to help keep water cooler and cleaner. The reason for that focus is straightforward. Even if more fish survive at sea, populations cannot rebuild where adults cannot reach spawning areas or where juvenile habitat is degraded. Tree planting, barrier removal and river restoration are therefore being treated as part of stock management, rather than as separate amenity work.
The announcement also includes evidence that restoration can produce results. The Environment Agency says salmon have returned to the River Trent and the River Ouse after work to improve water quality and remove migration barriers. In Yorkshire, the Great Yorkshire Rivers Partnership is reconnecting river stretches, and the recent return of salmon to parts of the River Don is presented as further proof that access and habitat repair can change outcomes. The next policy test sits with River Basin Management Plans. The agency said the next round, due later in 2025, would show a faster approach to removing unnecessary weirs and other barriers that obstruct fish movement. For local authorities, water firms, land managers and fisheries groups, that indicates where implementation will be tracked next: through catchment planning, regulatory follow-through and whether the 2032 commitments begin to alter the current trend.