Samuel Watson, Institute for Marine and Antarctic Studies, Taroona, TAS, Australia, Paul Spence, University of Tasmania, Hobart, TAS, Australia, Annie Foppert, Australian Antarctic Program Partnership, Hobart, TAS, Australia, Helen Elizabeth Phillips, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia and Stephen R Rintoul, Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC), Hobart, TAS, Australia