Emperor penguins eat primarily crustaceans, fish, and cephalopods. The proportions of prey they take vary seasonally and geographically, depending on the abundance of prey in the area. Crustaceans eaten are primarily amphipods (Amphipoda) or from the family Euphausiidae (krill), making up to 75% of the diet in some areas. Cephalopods eaten include Psychroteuthis glacialis, Alluroteuthis antarcticus, and Kondakovia longimana. Fish prey include Gymndraco acuticeps, Pleuragramma antarcticum, Trematomus eulepidotus, other Trematomus species, Pagothenia species, Notolepis coatsi, Electrona antarctica, and fish in the family Channichthyidae.
Emperor penguins search for prey in the open water of the Southern Ocean or in ice-free polynyas (an area of open water) and tidal cracks in pack ice. They have been recorded diving to depths of 400 to 450 meters and traveling 150 to 1000 km in a single foraging trip.
Animal Foods: fish; mollusks; aquatic crustaceans
Primary Diet: carnivore (Piscivore , Eats non-insect arthropods, Molluscivore )
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