Food of emperor penguins (Aptenodytes forsteri)
Abstract The diet of the emperor penguin Aptenodytes forsteri in the western Ross Sea during spring was in-vestigated by analysis of stomach contents sampled at three dierent localities. At Cape Washington, emperor penguins feeding chicks consistently preyed on fishes (89 to 95 % by mass) and crusta...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.457.1164 2023-05-15T13:58:00+02:00 Food of emperor penguins (Aptenodytes forsteri) Y. Cherel G. L. Kooyman The Pennsylvania State University CiteSeerX Archives 1997 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.457.1164 http://www.cebc.cnrs.fr/publipdf/1998/CMB130.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.457.1164 http://www.cebc.cnrs.fr/publipdf/1998/CMB130.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cebc.cnrs.fr/publipdf/1998/CMB130.pdf text 1997 ftciteseerx 2016-01-08T06:15:59Z Abstract The diet of the emperor penguin Aptenodytes forsteri in the western Ross Sea during spring was in-vestigated by analysis of stomach contents sampled at three dierent localities. At Cape Washington, emperor penguins feeding chicks consistently preyed on fishes (89 to 95 % by mass) and crustaceans (5 to 11%) over the four spring seasons examined. By far the commonest prey was the Antarctic silverfish Pleuragramma antarc-ticum (89 % of the fish prey); the remainder of fish prey were mainly unidentified juveniles of dierent species of channichthyid fishes. Three species dominated the crus-tacean part of the diet, i.e. the gammarid amphipods Abyssorchomene rossi/plebs (30 % of the crustacean prey) and Eusirus microps (22%), together with the euphausiid Euphausia crystallorophias (24%). At Coulman Island and Cape Roget, fishes, mainly P. antarcticum, formed the bulk of the food (88 and 93 % by mass, respectively), crustaceans were minor prey (2.5 and 0.4%), and the squid Psychroteuthis glacialis accounted for a small but significant part of the food (3.5 and 0.8%). This study emphasizes the importance of the small, shoaling pelagic fish Pleuragramma antarcticum as a key link between zooplankton and top predators, including seabirds, in the food web and marine ecosystem of the Ross Sea. Text Antarc* Antarctic Antarctic silverfish Aptenodytes forsteri Coulman Island Emperor penguins Ross Sea Unknown Antarctic Cape Roget ENVELOPE(170.617,170.617,-71.983,-71.983) Cape Washington ENVELOPE(-154.800,-154.800,-78.100,-78.100) Coulman Island ENVELOPE(169.750,169.750,-73.467,-73.467) Roget ENVELOPE(170.617,170.617,-71.983,-71.983) Ross Sea The Antarctic |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
description |
Abstract The diet of the emperor penguin Aptenodytes forsteri in the western Ross Sea during spring was in-vestigated by analysis of stomach contents sampled at three dierent localities. At Cape Washington, emperor penguins feeding chicks consistently preyed on fishes (89 to 95 % by mass) and crustaceans (5 to 11%) over the four spring seasons examined. By far the commonest prey was the Antarctic silverfish Pleuragramma antarc-ticum (89 % of the fish prey); the remainder of fish prey were mainly unidentified juveniles of dierent species of channichthyid fishes. Three species dominated the crus-tacean part of the diet, i.e. the gammarid amphipods Abyssorchomene rossi/plebs (30 % of the crustacean prey) and Eusirus microps (22%), together with the euphausiid Euphausia crystallorophias (24%). At Coulman Island and Cape Roget, fishes, mainly P. antarcticum, formed the bulk of the food (88 and 93 % by mass, respectively), crustaceans were minor prey (2.5 and 0.4%), and the squid Psychroteuthis glacialis accounted for a small but significant part of the food (3.5 and 0.8%). This study emphasizes the importance of the small, shoaling pelagic fish Pleuragramma antarcticum as a key link between zooplankton and top predators, including seabirds, in the food web and marine ecosystem of the Ross Sea. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Y. Cherel G. L. Kooyman |
spellingShingle |
Y. Cherel G. L. Kooyman Food of emperor penguins (Aptenodytes forsteri) |
author_facet |
Y. Cherel G. L. Kooyman |
author_sort |
Y. Cherel |
title |
Food of emperor penguins (Aptenodytes forsteri) |
title_short |
Food of emperor penguins (Aptenodytes forsteri) |
title_full |
Food of emperor penguins (Aptenodytes forsteri) |
title_fullStr |
Food of emperor penguins (Aptenodytes forsteri) |
title_full_unstemmed |
Food of emperor penguins (Aptenodytes forsteri) |
title_sort |
food of emperor penguins (aptenodytes forsteri) |
publishDate |
1997 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.457.1164 http://www.cebc.cnrs.fr/publipdf/1998/CMB130.pdf |
long_lat |
ENVELOPE(170.617,170.617,-71.983,-71.983) ENVELOPE(-154.800,-154.800,-78.100,-78.100) ENVELOPE(169.750,169.750,-73.467,-73.467) ENVELOPE(170.617,170.617,-71.983,-71.983) |
geographic |
Antarctic Cape Roget Cape Washington Coulman Island Roget Ross Sea The Antarctic |
geographic_facet |
Antarctic Cape Roget Cape Washington Coulman Island Roget Ross Sea The Antarctic |
genre |
Antarc* Antarctic Antarctic silverfish Aptenodytes forsteri Coulman Island Emperor penguins Ross Sea |
genre_facet |
Antarc* Antarctic Antarctic silverfish Aptenodytes forsteri Coulman Island Emperor penguins Ross Sea |
op_source |
http://www.cebc.cnrs.fr/publipdf/1998/CMB130.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.457.1164 http://www.cebc.cnrs.fr/publipdf/1998/CMB130.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766265938163793920 |