The CCAMLR.AUS dataset available to the Subgroup on Survey Design was derived from a survey of Prydz Bay, Antarctica, in December 1990. Swarm length, depth, thickness, Mean Volume Backscattering Strength (MVBS) and inter-swarm length were calculated for swarms of euphausiids encountered along a 78 km transect over the continental shelf close to the CEMP study site at Magnetic Island. The euphausiid species was probably Euphausia crystallorophias. An increase in swarm length was seen with increasing distance from the coast.