In accordance with decision of CCAMLR Scientific Committee in 2010 and in 2011 years Russian Federation was conducted research program in SSRU 88.2 A. In seasons 2010/2011 and 2011/2012 Russian vessel “Chio Maru 3” (“Antei” Ltd.) has been conducted research fishing of toothfish. The primary objective of the works in the SSRU was estimation of toothfish`s distribution density and carrying out of tagging. Obtained results shows that investigated area is potentially advantageous for fishing and could be recommended for exploratory fishing under CCAMLR regulations. Calculation results shows that biomass of toothfish in SSRU 88.2 A in significant and makes up from 2611.3 to 3112.3 t, which allows the removal of approximately 280 tons (at 10% operating level) each year without negative effect to the population of toothfish. We recommend 286 tons as value of limit of the allowable catch.