Ecosystem drivers of food webs on the Kerguelen Axis of the Southern Ocean

The Southern Ocean has a disproportionately large role compared to other ocean systems in regulating Earth’s response to climate change (Meredith et al., 2019a, 2019b). Physical changes, combined with changing biogeochemistry, will alter Southern Ocean ecosystems (Constable et al., 2014b, 2016b; 2017; Meredith et al., 2019b). However, most knowledge on the structure, function and projected future changes comes from the subantarctic systems (north of the Antarctic Circumpolar Current Front) or, nearer to Antarctica, from the West Antarctic Peninsula and Scotia Arc (Brasier et al., 2019; Constable et al., 2014b).