Climate Change Reshuffles Life on the Deep Atlantic Seabed

Deep beneath the North Atlantic, crucial ecosystems are facing a climate-driven reorganisation. Researchers have used sophisticated computer models to forecast how the habitats of 55 species of amphipods—tiny crustaceans vital for deep-sea food webs—will change by the end of the century.

The study, which used various climate change scenarios, reveals a complex and species-specific future. Over half the amphipod species are projected to expand their ranges, while others face significant habitat loss. Interestingly, even closely related species can have contrasting fates.

A key trend is a northward shift in habitats, particularly towards the Greenlandic coast, a behaviour theorised to be driven by rising temperatures. In some of these new northern regions, glacial meltwater and increased nutrients could enhance habitat suitability. These dramatic shifts will inevitably alter deep-sea biodiversity and ecosystem stability, underlining the urgent need for focused conservation strategies.