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The Southern Ocean Network of Acoustics (SONA) represents a group of scientific institutes and industrial partners who have united to measure an under-sampled component of the ecosystem – the mid-trophic level – , to agree common standards and protocols for data collection and processing and with a view to provide that data on an open access basis.

Sustained observations are key to our understanding of the natural causes and consequences of Southern Ocean change.

Southern ocean processes are intimately linked to some of the most pressing challenges faced by society today: climate change, ocean acidification and the sustainable management of marine resources.