Sweden's 2026 Red List Reveals Sharp Rise in Threatened Fish Species Amid Conservation Gains

The Swedish University of Agricultural Sciences (SLU) ArtDatabanken released the 2026 red list on March 24, revealing a concerning increase in Sweden's threatened species, particularly fish. Of the 23,103 species assessed, 5,217 are now red-listed, with 2,373 classified as threatened—marking about 23% of all species evaluated. This represents a rise from previous years, largely due to habitat loss driven by land development, forestry, and marine pressures such as bottom trawling and nutrient pollution.

Among fish, herring, salmon, and trout have been newly designated as Near Threatened, while cod has been escalated to Endangered. These changes highlight escalating threats in aquatic environments linked to human activity and climate change. However, the report also highlights conservation successes: the sea eagle (havsörnen), which once faced a precarious decline in the 1970s, has rebounded to roughly 1,400 breeding pairs and is no longer red-listed. Improved food availability, thanks to flourishing goose populations, has helped this recovery, alongside the recovery of otters, long-legged frogs, and asp fish which have been downgraded to Least Concern.

Biologist Mikael Svensson from SLU's ArtDatabank emphasized the sea eagle's slow maturity yet long lifespan as key factors in its population growth. However, the resurgence of some predators, including the sea eagle, has had unintended negative effects on species such as eiders and terns due to increased predation.

The red list also notes that climate change impacts are increasingly felt in mountainous areas, and invasive species continue to pose challenges. The overall rise in red-listed species partly reflects improved assessment coverage and reevaluation of species previously considered secure.

SLU announced a press conference and open webinar on the publication day to provide further insight into the findings. This comprehensive red list, updated every five years, underscores the dynamic conservation landscape in Sweden as it balances gains with emerging threats in both terrestrial and marine ecosystems.