Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago
The diet of King Penguins Aptenodytes patagonica at Possession Island was studied in February 1989 by analysis of 20 stomach contents collected from adult birds, just before they fed their single chicks. The mean mass of the samples was 1.84 kg, equivalent to 15% of the unladen adult body-mass. Fish...
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Wiley-Blackwell
1992
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Online Access: | https://oceanrep.geomar.de/id/eprint/37000/ https://oceanrep.geomar.de/id/eprint/37000/1/2277.pdf https://doi.org/10.1111/j.1474-919X.1992.tb08388.x |
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ftoceanrep:oai:oceanrep.geomar.de:37000 2023-05-15T14:17:09+02:00 Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago Cherel, Yves Ridoux, Vincent 1992 text https://oceanrep.geomar.de/id/eprint/37000/ https://oceanrep.geomar.de/id/eprint/37000/1/2277.pdf https://doi.org/10.1111/j.1474-919X.1992.tb08388.x en eng Wiley-Blackwell https://oceanrep.geomar.de/id/eprint/37000/1/2277.pdf Cherel, Y. and Ridoux, V. (1992) Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago. Ibis, 134 (2). pp. 118-127. DOI 10.1111/j.1474-919X.1992.tb08388.x <https://doi.org/10.1111/j.1474-919X.1992.tb08388.x>. doi:10.1111/j.1474-919X.1992.tb08388.x info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1992 ftoceanrep https://doi.org/10.1111/j.1474-919X.1992.tb08388.x 2023-04-07T15:31:51Z The diet of King Penguins Aptenodytes patagonica at Possession Island was studied in February 1989 by analysis of 20 stomach contents collected from adult birds, just before they fed their single chicks. The mean mass of the samples was 1.84 kg, equivalent to 15% of the unladen adult body-mass. Fish accounted for 99.8% and squids for 0.2% by mass. The main prey were mesopelagic myctophid fish which live in dense shoals and perform a daily vertical migration. Subadults/adults of Electrona carlsbergi and juveniles and subadults/adults of Krefftichthys anderssoni represented 73.7 and 13.4% of the diet by mass, respectively. No difference was found in the diet of male and female King Penguins. Comparison of individual samples suggests that these birds catch a large quantity of fish from only a limited number of shoals. The mean caloric content of the food was 7 kJ/g wet mass. The total energy requirement of each chick during its initial period of growth was estimated to amount to 328,000 kJ, equivalent to 55 kg of food. The rate at which energy was delivered to the chick was calculated to be 50 W during this period. Article in Journal/Newspaper Aptenodytes patagonica King Penguins Possession Island OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Possession Island ENVELOPE(171.200,171.200,-71.867,-71.867) Ibis 134 2 118 127 |
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 patagonica at Possession Island was studied in February 1989 by analysis of 20 stomach contents collected from adult birds, just before they fed their single chicks. The mean mass of the samples was 1.84 kg, equivalent to 15% of the unladen adult body-mass. Fish accounted for 99.8% and squids for 0.2% by mass. The main prey were mesopelagic myctophid fish which live in dense shoals and perform a daily vertical migration. Subadults/adults of Electrona carlsbergi and juveniles and subadults/adults of Krefftichthys anderssoni represented 73.7 and 13.4% of the diet by mass, respectively. No difference was found in the diet of male and female King Penguins. Comparison of individual samples suggests that these birds catch a large quantity of fish from only a limited number of shoals. The mean caloric content of the food was 7 kJ/g wet mass. The total energy requirement of each chick during its initial period of growth was estimated to amount to 328,000 kJ, equivalent to 55 kg of food. The rate at which energy was delivered to the chick was calculated to be 50 W during this period. |
format |
Article in Journal/Newspaper |
author |
Cherel, Yves Ridoux, Vincent |
spellingShingle |
Cherel, Yves Ridoux, Vincent Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago |
author_facet |
Cherel, Yves Ridoux, Vincent |
author_sort |
Cherel, Yves |
title |
Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago |
title_short |
Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago |
title_full |
Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago |
title_fullStr |
Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago |
title_full_unstemmed |
Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago |
title_sort |
prey species and nutritive value of food fed during summer to king penguin aptenodytes patagonica chicks at possession island, crozet archipelago |
publisher |
Wiley-Blackwell |
publishDate |
1992 |
url |
https://oceanrep.geomar.de/id/eprint/37000/ https://oceanrep.geomar.de/id/eprint/37000/1/2277.pdf https://doi.org/10.1111/j.1474-919X.1992.tb08388.x |
long_lat |
ENVELOPE(171.200,171.200,-71.867,-71.867) |
geographic |
Possession Island |
geographic_facet |
Possession Island |
genre |
Aptenodytes patagonica King Penguins Possession Island |
genre_facet |
Aptenodytes patagonica King Penguins Possession Island |
op_relation |
https://oceanrep.geomar.de/id/eprint/37000/1/2277.pdf Cherel, Y. and Ridoux, V. (1992) Prey species and nutritive value of food fed during summer to King Penguin Aptenodytes patagonica chicks at Possession Island, Crozet Archipelago. Ibis, 134 (2). pp. 118-127. DOI 10.1111/j.1474-919X.1992.tb08388.x <https://doi.org/10.1111/j.1474-919X.1992.tb08388.x>. doi:10.1111/j.1474-919X.1992.tb08388.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1474-919X.1992.tb08388.x |
container_title |
Ibis |
container_volume |
134 |
container_issue |
2 |
container_start_page |
118 |
op_container_end_page |
127 |
_version_ |
1766289066187292672 |