In this issue, we introduce recent peer-reviewed scientific research that provides important insight into the continuing decline of Atlantic salmon at sea. While much attention has focused on rivers, the evidence increasingly shows that the greatest losses are occurring in the marine environment — particularly in the critical early weeks after young salmon enter the ocean.

Three recent studies point to a major ecosystem shift in the Northeast Atlantic around 2005, with long-term declines in plankton productivity and marine energy availability. The findings suggest that reduced food availability — rather than simple temperature “shock” — is now a key driver of lower growth and survival.

The implications are significant. If marine productivity remains depressed, recovery to historic salmon abundance will be extremely difficult without addressing every avoidable human pressure, both at sea and in coastal waters.

This newsletter summarises the headline findings and provides links to the three scientific papers.

We hope you find it informative and, as always, we welcome your feedback and continued support.

Newsletter Number 31 - 10 Feb 2026