Information on fish and krill distribution and abundance published recently in Poland is summarised. The locations of concentrations for Champsocephalus gunnari, Notothenia squamifrons, and (to some extent) N. rossii off Kerguelen are determined. The distribution of about 60 species on the South Georgia shelf and the Scotia area is investigated. For selected species, more detailed biological analyses are undertaken. The by- catch of juvenile fish in krill fishery is studied in particular during FIBEX. The existence of deep scattering layers in the Pacific sector is reported. 

Hydroacoustic surveys have indicated areas of largest and most permanent krill concentrations. These areas include the region of the Weddell-Scotia Confluence where the krill biomass exceeds 1000 tonnes/sq. mile. A concept for the formation of krill concentrations is proposed. The classification of different krill aggregations is made. It is proposed that the observed negative correlation between krill and phytoplankton concentrations is likely to be caused by different abiotic factors and does not necessarily reflect a relationship between krill and phytoplankton. The biological analyses of krill have led to a conclusion that the life span of krill is longer than two years. Large variability in the intensity and time of spawning is found while the location of spawning areas remains more or less unchanged. 

The overall surface density of krill biomass in Antarctica was estimated to be 100-400 million tons. 

A review of the Polish fishery and assessment of fish stock biomass off South Georgia is published separately as SC-CAMLR-III/BG/11.