Standardized krill net sampling surveys were conducted in the Lazarev Sea (Subarea 48.6) in April 2004 and in the Elephant Island area (Subarea 48.1) in January and February/March 2004. Krill densities in the Elephant Island area were below the long-term average which mark a substantial decline after the good krill years in 2001 and 2002. Krill density was lower in the Lazarev Sea, even after taking substantial day/night differences in the catches into account. Recruitment indices of one-year- old (R1) and two-year-old krill (R2) were calculated for both areas, showing low values for R1 and high, but different values for R2. Spatial distribution of krill density and size/age classes is discussed for the Lazarev Sea. Information are given on the development of maturity stages and “re-juvenation processes” after the spawning season. Distribution and density of krill calyptopis and furcilia larvae are provided for the Lazarev Sea.