The marbled rockcod (Notothenia rossii) is a species of cod icefish native to the Southern Ocean where it can be found at depths of from 5 to 350 metres (16 to 1,148 ft). This species can reach a length of 92 centimetres (36 in) TL though most are only around 50 centimetres (20 in). The greatest recorded weight for this species is 10 kilograms (22 lb). This is a commercially important species.