Marcel du Plessis¹, Sarah-Anne Nicholson², Isabelle S Giddy, Pedro M.S. Monteiro⁴, Dr. Channing Prend⁵ and Sebastiaan Swart¹, (1)University of Gothenburg, Department of Marine Sciences, Gothenburg, Sweden, (2)Southern Ocean Carbon-Climate Observatory, CSIR, Cape Town, South Africa, (3)Stellenbosch University, Stellenbosch, South Africa, (4)University of Edinburgh, Edinburgh, United Kingdom