These are raw and processed fisheries acoustics data of observations of a super-swarm of Antarctic krill collected in the East Antarctic (63°S, 79.7°E). There are also whale sightings data and coordinates of the super-swarm boundary. Recently (18 August 2026), at the request of the journal Limnology and Oceanography (L&O), a static copy the analysis scripts have been added. Scripts are also available in the following public repo: https://github.com/AustralianAntarcticDivision/Krill_super_swarm