Scientific investigations of the National Marine Mammal Laboratory, 1990
Field research was carried out on Seal Island (60°59.5'S, 55°24.5'W), South Shetland Islands from 14 December 1989 to 27 February 1990. The main focus ofstudy was the ecology and population biology of Antarctic fur seals Arctocephalusgazella (Bengtson and others 1990a, b)and chinstrap Pygo...
Published in: | Polar Record |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1992
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0032247400020258 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400020258 |
id |
crcambridgeupr:10.1017/s0032247400020258 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0032247400020258 2024-03-03T08:38:09+00:00 Scientific investigations of the National Marine Mammal Laboratory, 1990 Braham, Howard W. 1992 http://dx.doi.org/10.1017/s0032247400020258 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400020258 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Polar Record volume 28, issue 164, page 43-46 ISSN 0032-2474 1475-3057 General Earth and Planetary Sciences Ecology Geography, Planning and Development journal-article 1992 crcambridgeupr https://doi.org/10.1017/s0032247400020258 2024-02-08T08:44:28Z Field research was carried out on Seal Island (60°59.5'S, 55°24.5'W), South Shetland Islands from 14 December 1989 to 27 February 1990. The main focus ofstudy was the ecology and population biology of Antarctic fur seals Arctocephalusgazella (Bengtson and others 1990a, b)and chinstrap Pygoscelis antarctica and macaroni Eudyptes chrysolophus penguins (Bengtson and others 1990a; Croll and others 1990). Analysis of stomach and fecal contents of live adult and sub-adult animals showed that krill were predominate in the diets of all three species, especially the penguins. Prey fed to penguin chicks by their parents contained 99% krill by weight. Thedietof fur seals varied from principally krill (62%), to fish (13%), to mixed krill and fish (25%). Traces of squid beaks were found in 15% of the fur seal stomach samples. Time-depth recorders and radio transm itters were attached to 14 fur seals, 10 macaroni penguins and 40 chinstrap penguins, to assess foraging behavior. Fur seals foraged at depths averaging 20—30 m, and the penguins 35–50 m. All three species swam to areas 11—100 km north of Seal Island to feed (water depths varied from 200 m to greater than 3000 m). These results are consistent with data collected in 1988 and 1989. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Antarctica Eudyptes chrysolophus Polar Record Pygoscelis antarctica South Shetland Islands Seal Island Cambridge University Press Antarctic South Shetland Islands Polar Record 28 164 43 46 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
General Earth and Planetary Sciences Ecology Geography, Planning and Development |
spellingShingle |
General Earth and Planetary Sciences Ecology Geography, Planning and Development Braham, Howard W. Scientific investigations of the National Marine Mammal Laboratory, 1990 |
topic_facet |
General Earth and Planetary Sciences Ecology Geography, Planning and Development |
description |
Field research was carried out on Seal Island (60°59.5'S, 55°24.5'W), South Shetland Islands from 14 December 1989 to 27 February 1990. The main focus ofstudy was the ecology and population biology of Antarctic fur seals Arctocephalusgazella (Bengtson and others 1990a, b)and chinstrap Pygoscelis antarctica and macaroni Eudyptes chrysolophus penguins (Bengtson and others 1990a; Croll and others 1990). Analysis of stomach and fecal contents of live adult and sub-adult animals showed that krill were predominate in the diets of all three species, especially the penguins. Prey fed to penguin chicks by their parents contained 99% krill by weight. Thedietof fur seals varied from principally krill (62%), to fish (13%), to mixed krill and fish (25%). Traces of squid beaks were found in 15% of the fur seal stomach samples. Time-depth recorders and radio transm itters were attached to 14 fur seals, 10 macaroni penguins and 40 chinstrap penguins, to assess foraging behavior. Fur seals foraged at depths averaging 20—30 m, and the penguins 35–50 m. All three species swam to areas 11—100 km north of Seal Island to feed (water depths varied from 200 m to greater than 3000 m). These results are consistent with data collected in 1988 and 1989. |
format |
Article in Journal/Newspaper |
author |
Braham, Howard W. |
author_facet |
Braham, Howard W. |
author_sort |
Braham, Howard W. |
title |
Scientific investigations of the National Marine Mammal Laboratory, 1990 |
title_short |
Scientific investigations of the National Marine Mammal Laboratory, 1990 |
title_full |
Scientific investigations of the National Marine Mammal Laboratory, 1990 |
title_fullStr |
Scientific investigations of the National Marine Mammal Laboratory, 1990 |
title_full_unstemmed |
Scientific investigations of the National Marine Mammal Laboratory, 1990 |
title_sort |
scientific investigations of the national marine mammal laboratory, 1990 |
publisher |
Cambridge University Press (CUP) |
publishDate |
1992 |
url |
http://dx.doi.org/10.1017/s0032247400020258 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400020258 |
geographic |
Antarctic South Shetland Islands |
geographic_facet |
Antarctic South Shetland Islands |
genre |
Antarc* Antarctic Antarctic Fur Seals Antarctica Eudyptes chrysolophus Polar Record Pygoscelis antarctica South Shetland Islands Seal Island |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Antarctica Eudyptes chrysolophus Polar Record Pygoscelis antarctica South Shetland Islands Seal Island |
op_source |
Polar Record volume 28, issue 164, page 43-46 ISSN 0032-2474 1475-3057 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0032247400020258 |
container_title |
Polar Record |
container_volume |
28 |
container_issue |
164 |
container_start_page |
43 |
op_container_end_page |
46 |
_version_ |
1792504997215207424 |