Assessing status and change in Southern Ocean ecosystems

1Australian Antarctic Division, Kingston, Tasmania, Australia 2Antarctic Climate and Ecosystem Cooperative Research Centre, Hobart, Tasmania, Australia 3Ecology & Evolutionary Biology, University of California Santa Cruz, CA, USA 4British Antarctic Survey, Cambridge, UK 5Center for Coastal Physical Oceanography, Old Dominion University, Norfolk, VA, USA 6Coastal Ocean Observation Laboratory, Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ, USA 7Southern Ocean Observing System International Project Office, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia