Euphausia vallentini Stebbing 1900

are eaten by

• Global Biotic Interactions: Balaenoptera musculus brevicauda Ichihara 1966 (pygmy blue whale)
• Global Biotic Interactions: Eudyptes chrysolophus (Brandt & JF 1837) (Macaroni Penguin)
• Global Biotic Interactions: Eudyptes chrysolophus (Brandt & JF 1837) (Macaroni Penguin)
• Global Biotic Interactions: Procellaria aequinoctialis Linnaeus 1758 (White-chinned Petrel)
• Global Biotic Interactions: Eudyptes chrysocome (Forster & JR 1781) (Rockhopper Penguin)

are preyed upon by

• Global Biotic Interactions: Pachyptila turtur (Kuhl 1820) (Fairy Prion)
• Global Biotic Interactions: Oceanites oceanicus (Kuhl 1820) (Wilson's Storm Petrel)
• Global Biotic Interactions: Procellaria aequinoctialis Linnaeus 1758 (White-chinned Petrel)
• Global Biotic Interactions: Phoebetria fusca (Hilsenberg 1822) (Dark-mantled Sooty Albatross)
• Global Biotic Interactions: Champsocephalus gunnari Lönnberg 1905 (Mackerel icefish)