Diving depths of the Chinstrap Penguin Pygoscelis antarctica
Diving depths of four breeding chinstrap penguins were recorded throughout complete foraging trips to sea lasting 18-48 h at Signy Island, South Orkney Islands. Deeper dives reached 70 m but 90% of dives were shallower than 45 m and 40% were to less than 10 m. The diving pattern is compared with tho...
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British Antarctic Survey
1983
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ftnerc:oai:nora.nerc.ac.uk:504753 2023-05-15T13:48:08+02:00 Diving depths of the Chinstrap Penguin Pygoscelis antarctica Lishman, G. P. Croxall, J. P. 1983-11 text http://nora.nerc.ac.uk/id/eprint/504753/ https://nora.nerc.ac.uk/id/eprint/504753/1/bulletin61_05.pdf en eng British Antarctic Survey https://nora.nerc.ac.uk/id/eprint/504753/1/bulletin61_05.pdf Lishman, G. P.; Croxall, J. P. 1983 Diving depths of the Chinstrap Penguin Pygoscelis antarctica. British Antarctic Survey Bulletin, 61. 21-25. Publication - Article NonPeerReviewed 1983 ftnerc 2023-02-04T19:38:34Z Diving depths of four breeding chinstrap penguins were recorded throughout complete foraging trips to sea lasting 18-48 h at Signy Island, South Orkney Islands. Deeper dives reached 70 m but 90% of dives were shallower than 45 m and 40% were to less than 10 m. The diving pattern is compared with those of king penguins and Antarctic fur seals. Chinstrap penguins feed on krill and it is suggested that they do so chiefly during shallow dives at night when krill are near the surface. Using data on average measurements and weight of krill taken by chinstraps at Signy Island, and estimates of at-sea metabolic rate and the size of meals delivered to their chicks by the study birds, it is calculated that about 16 krill are caught per dive of duration c. 1.6 min. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Antarctica British Antarctic Survey Bulletin Chinstrap penguin King Penguins Pygoscelis antarctica Signy Island South Orkney Islands Natural Environment Research Council: NERC Open Research Archive Antarctic South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Diving depths of four breeding chinstrap penguins were recorded throughout complete foraging trips to sea lasting 18-48 h at Signy Island, South Orkney Islands. Deeper dives reached 70 m but 90% of dives were shallower than 45 m and 40% were to less than 10 m. The diving pattern is compared with those of king penguins and Antarctic fur seals. Chinstrap penguins feed on krill and it is suggested that they do so chiefly during shallow dives at night when krill are near the surface. Using data on average measurements and weight of krill taken by chinstraps at Signy Island, and estimates of at-sea metabolic rate and the size of meals delivered to their chicks by the study birds, it is calculated that about 16 krill are caught per dive of duration c. 1.6 min. |
format |
Article in Journal/Newspaper |
author |
Lishman, G. P. Croxall, J. P. |
spellingShingle |
Lishman, G. P. Croxall, J. P. Diving depths of the Chinstrap Penguin Pygoscelis antarctica |
author_facet |
Lishman, G. P. Croxall, J. P. |
author_sort |
Lishman, G. P. |
title |
Diving depths of the Chinstrap Penguin Pygoscelis antarctica |
title_short |
Diving depths of the Chinstrap Penguin Pygoscelis antarctica |
title_full |
Diving depths of the Chinstrap Penguin Pygoscelis antarctica |
title_fullStr |
Diving depths of the Chinstrap Penguin Pygoscelis antarctica |
title_full_unstemmed |
Diving depths of the Chinstrap Penguin Pygoscelis antarctica |
title_sort |
diving depths of the chinstrap penguin pygoscelis antarctica |
publisher |
British Antarctic Survey |
publishDate |
1983 |
url |
http://nora.nerc.ac.uk/id/eprint/504753/ https://nora.nerc.ac.uk/id/eprint/504753/1/bulletin61_05.pdf |
long_lat |
ENVELOPE(-45.500,-45.500,-60.583,-60.583) ENVELOPE(-45.595,-45.595,-60.708,-60.708) |
geographic |
Antarctic South Orkney Islands Signy Island |
geographic_facet |
Antarctic South Orkney Islands Signy Island |
genre |
Antarc* Antarctic Antarctic Fur Seals Antarctica British Antarctic Survey Bulletin Chinstrap penguin King Penguins Pygoscelis antarctica Signy Island South Orkney Islands |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Antarctica British Antarctic Survey Bulletin Chinstrap penguin King Penguins Pygoscelis antarctica Signy Island South Orkney Islands |
op_relation |
https://nora.nerc.ac.uk/id/eprint/504753/1/bulletin61_05.pdf Lishman, G. P.; Croxall, J. P. 1983 Diving depths of the Chinstrap Penguin Pygoscelis antarctica. British Antarctic Survey Bulletin, 61. 21-25. |
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1766248737898758144 |