The Ni cycle in the Southern Ocean: insights from Ni concentrations, isotopes and metagenomics. - Lemaitre, Nolwenn; Faure, Emile; Zamora, Ricardo; Archer, Corey; Sieber, Matthias; Ellwood, Michael; Hassler, Christel; Lin, Yajuan; Cassar, Nicolas; Maignien, Lois; Vance, Derek (Biogeosciences, 2026)