Hydroacoustics logs collected on the AAMBER voyage of the Nella Dan, March 1987

These data were collected on the sixth Nella Dan voyage of a long term field survey project being conducted by the Australian Antarctic Division, to collect distribution, abundance and population structure data for the krill Euphausia superba in the Prydz Bay region, Antarctica.This voyage, the Australian Antarctic Marine Biological Ecosystem Research 1986/1987 (AAMBER 86/87) cruise, operated between February and April 1987.The dataset includes two scanned copies of the Hyrdoacoustic logs of the voyage.