Food and feeding ecology of emperor penguins in the eastern Weddell Sea | Zendy

N. T. W. Klages | Zendy

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Food and feeding ecology of emperor penguins in the eastern Weddell Sea

Author(s) -

N. T. W. Klages

Publication year - 1989

Publication title -

polar biology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.874

H-Index - 78

eISSN - 1432-2056

pISSN - 0722-4060

DOI - 10.1007/bf00442529

Subject(s) - euphausia , mesopelagic zone , biology , antarctic krill , krill , euphausiacea , benthic zone , predation , oceanography , fishery , crustacean , sea ice , ecology , zoology , pelagic zone , geology

The diet of the emperor penguin Aptenodytes forsteri in the eastern Weddell Sea, Antarctica was studied during October and November 1986 by stomach content analysis. Emperor penguins fed mainly on Antarctic krill Euphausia superba, Antarctic silverfish Pleuragramma antarcticum and squid Psychroteuthis glacialis. Benthic prey was not found. The prey composition suggests two different feeding strategies, shallow dives exploring the rugged underside of sea ice where krill is taken, and deep dives when mesopelagic fish and squid are consumed. Chicks were fed on average every 1.44 days

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