Fisheries in 2006 - 7 landed 1,26,976 metric tons , of which 82 % ( 1,04,586 tons ) was krill ( Euphausia superba ) and 9.5 % ( 12,027 tons ) Patagonian toothfish ( Dissostichus eleginoides - also known as Chilean sea bass ) , compared to 1,27,910 tons in 2005 - 6 of which 83 % ( 1,06,591 tons ) was krill and 9.7 % ( 12,396 tons ) Patagonian toothfish ( estimated fishing from the area covered by the Convention of the Conservation of Antarctic Marine Living Resources ( CCAMLR ) , which extends slightly beyond the Southern Ocean area ) .