Eugene John Murphy, British Antarctic Survey, Cambridge, United Kingdom, Nadine Johnston, NERC British Antarctic Survey, Ecosystems, Cambridge, United Kingdom, Stuart Paul Corney, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, Keith Reid, Commission for the Conservation of Antarctic Marine Living Resources, Hobart, TAS, Australia and Rachel ~D Cavanagh, NERC British Antarctic Survey, Cambridge, United Kingdom