East Antarctic food webs support a diverse array of predators such as penguins and whales feeding on mesozooplankton, krill, and fish. We introduce the structure and evaluation process of an end-to-end Atlantis ecosystem model for East Antarctica (East Antarctic Atlantis Model, EAAM), the first whole-of-ecosystem model within the Southern Ocean. The EAAM is intended as a simulation tool to support decision-making for marine ecosystem management. A wide range of information ranging from literatur