Maak, JM, Elvert, M, Grotheer, H, Lin, YS, Mollenhauer, G, Lin, IT, Bühring, SI and Schefuß, E (2026) Physicochemical controls on ancient carbon assimilation into ecosystem biomass in shallow-water hydrothermal systems. Communications Earth & Environment, 7(1). doi:10.1038/s43247-026-03254-z