Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean
The diet of king penguins (Aptenodytes patagonicus) brooding chicks was investigated during February 2001 at the Falkland Islands, where a small but increasing population is located at the limit of the breeding range of this species. Fish was the most important food source by number (98.0%) and reco...
Published in: | Polar Biology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer
2002
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/53273/ https://oceanrep.geomar.de/id/eprint/53273/1/4049.pdf https://doi.org/10.1007/s00300-002-0419-2 |
id |
ftoceanrep:oai:oceanrep.geomar.de:53273 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:53273 2023-05-15T13:55:37+02:00 Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean Cherel, Yves Pütz, Klemens Hobson, Keith A. 2002-12 text https://oceanrep.geomar.de/id/eprint/53273/ https://oceanrep.geomar.de/id/eprint/53273/1/4049.pdf https://doi.org/10.1007/s00300-002-0419-2 en eng Springer https://oceanrep.geomar.de/id/eprint/53273/1/4049.pdf Cherel, Y., Pütz, K. and Hobson, K. A. (2002) Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean. Polar Biology, 25 (12). pp. 898-906. DOI 10.1007/s00300-002-0419-2 <https://doi.org/10.1007/s00300-002-0419-2>. doi:10.1007/s00300-002-0419-2 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2002 ftoceanrep https://doi.org/10.1007/s00300-002-0419-2 2023-04-07T15:57:22Z The diet of king penguins (Aptenodytes patagonicus) brooding chicks was investigated during February 2001 at the Falkland Islands, where a small but increasing population is located at the limit of the breeding range of this species. Fish was the most important food source by number (98.0%) and reconstituted mass (97.8%), squids accounting for the remainder. Myctophid fishes represented the main part of the diet (97.7% by number and 96.6% by reconstituted mass), Protomyctophum choriodon being by far the main prey item (84.2% and 88.1%, respectively). Four other myctophids and one squid species each contributed to more than 1% of the diet by number: Krefftichthys anderssoni (4.8%), Electrona carlsbergi (4.6%), Gymnoscopelus nicholsi (2.2%) and Protomyctophum tenisoni (1.8%), together with small juveniles of Gonatus antarcticus (1.8%). Twelve squid species were identified from accumulated lower beaks, including the ommastrephid Martialia hyadesi (48.3% by number), the onychoteuthids Moroteuthis ingens (15.6%), Kondakovia longimana (10.5%) and Moroteuthis knipovitchi (7.3%), and Gonatus antarcticus (9.2%). The stable-carbon and stable-nitrogen isotopic composition of chick food and adult blood differed in a way that suggests that, during the same trip, adult birds fed for themselves in distant foraging grounds, and fed for their chicks on their way back to the colony. The study emphasizes that king penguins are specialist myctophid eaters throughout their breeding range in summer, and highlights the importance of Protomyctophum choriodon as a link between zooplankton and top predators in the pelagic ecosystem of the southwestern Atlantic Ocean. Article in Journal/Newspaper Antarc* antarcticus King Penguins Polar Biology OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Polar Biology 25 12 898 906 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The diet of king penguins (Aptenodytes patagonicus) brooding chicks was investigated during February 2001 at the Falkland Islands, where a small but increasing population is located at the limit of the breeding range of this species. Fish was the most important food source by number (98.0%) and reconstituted mass (97.8%), squids accounting for the remainder. Myctophid fishes represented the main part of the diet (97.7% by number and 96.6% by reconstituted mass), Protomyctophum choriodon being by far the main prey item (84.2% and 88.1%, respectively). Four other myctophids and one squid species each contributed to more than 1% of the diet by number: Krefftichthys anderssoni (4.8%), Electrona carlsbergi (4.6%), Gymnoscopelus nicholsi (2.2%) and Protomyctophum tenisoni (1.8%), together with small juveniles of Gonatus antarcticus (1.8%). Twelve squid species were identified from accumulated lower beaks, including the ommastrephid Martialia hyadesi (48.3% by number), the onychoteuthids Moroteuthis ingens (15.6%), Kondakovia longimana (10.5%) and Moroteuthis knipovitchi (7.3%), and Gonatus antarcticus (9.2%). The stable-carbon and stable-nitrogen isotopic composition of chick food and adult blood differed in a way that suggests that, during the same trip, adult birds fed for themselves in distant foraging grounds, and fed for their chicks on their way back to the colony. The study emphasizes that king penguins are specialist myctophid eaters throughout their breeding range in summer, and highlights the importance of Protomyctophum choriodon as a link between zooplankton and top predators in the pelagic ecosystem of the southwestern Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
Cherel, Yves Pütz, Klemens Hobson, Keith A. |
spellingShingle |
Cherel, Yves Pütz, Klemens Hobson, Keith A. Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean |
author_facet |
Cherel, Yves Pütz, Klemens Hobson, Keith A. |
author_sort |
Cherel, Yves |
title |
Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean |
title_short |
Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean |
title_full |
Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean |
title_fullStr |
Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean |
title_full_unstemmed |
Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean |
title_sort |
summer diet of king penguins (aptenodytes patagonicus) at the falkland islands, southern atlantic ocean |
publisher |
Springer |
publishDate |
2002 |
url |
https://oceanrep.geomar.de/id/eprint/53273/ https://oceanrep.geomar.de/id/eprint/53273/1/4049.pdf https://doi.org/10.1007/s00300-002-0419-2 |
genre |
Antarc* antarcticus King Penguins Polar Biology |
genre_facet |
Antarc* antarcticus King Penguins Polar Biology |
op_relation |
https://oceanrep.geomar.de/id/eprint/53273/1/4049.pdf Cherel, Y., Pütz, K. and Hobson, K. A. (2002) Summer diet of king penguins (Aptenodytes patagonicus) at the Falkland Islands, southern Atlantic Ocean. Polar Biology, 25 (12). pp. 898-906. DOI 10.1007/s00300-002-0419-2 <https://doi.org/10.1007/s00300-002-0419-2>. doi:10.1007/s00300-002-0419-2 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00300-002-0419-2 |
container_title |
Polar Biology |
container_volume |
25 |
container_issue |
12 |
container_start_page |
898 |
op_container_end_page |
906 |
_version_ |
1766262371195551744 |