Here are some specific species of fish that emperor penguins have been known to eat:
- Antarctic silverfish (Pleuragramma antarctica)
- Lanternfish (Myctophidae)
- Mackerel icefish (Champsocephalus gunnari)
- Blue grenadier (Macruronus novaezelandiae)
- Patagonian toothfish (Dissostichus eleginoides)
- Squid (Gonatus spp.)
- Krill (Euphausia superba)