The main goal of expedition PS133/2 "Island Impact" on board Polarstern was to understand the sources and transport pathways of iron (Fe), other nutrients (both macronutrients and trace elements/metals) and carbon compounds into the shelf waters of South Georgia and further downstream in the Southern Antarctic Circumpolar Current (ACC). Gravity core PS133/2_23-13 was taken in the innermost King Haakon Bay.