Original: Well-known species of the Euphausiidae of commercial krill fisheries include Antarctic krill ( Euphausia superba ) , Pacific krill ( Euphausia pacifica ) and Northern krill ( Meganyctiphanes norvegica ) .
Simplified: Most known species are -- because they fished Antarctic krill ( Euphausia superba ) , Pacific krill ( Euphausia pacifica ) and Northern krill ( Meganyctiphanes norvegica ) .