New records of mummified crabeater seals on islands bordering Admiralty Sound, Weddell Sea
Abstract Ninety-six mummified crabeater seals discovered at Seymour Island (Isla Marambio) are reported. Each specimen was georeferenced, photographed and assigned to five different taphonomic states. Previous work stated that seals at Seymour Island get stranded inland around the breeding season. H...
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crcambridgeupr:10.1017/s0954102019000051 2024-03-03T08:39:28+00:00 New records of mummified crabeater seals on islands bordering Admiralty Sound, Weddell Sea Negrete, Javier Soibelzon, Leopoldo H. Soibelzon, Esteban Lusky, Jorge 2019 http://dx.doi.org/10.1017/s0954102019000051 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102019000051 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms https://www.cambridge.org/core/terms Antarctic Science volume 31, issue 3, page 109-115 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2019 crcambridgeupr https://doi.org/10.1017/s0954102019000051 2024-02-08T08:43:33Z Abstract Ninety-six mummified crabeater seals discovered at Seymour Island (Isla Marambio) are reported. Each specimen was georeferenced, photographed and assigned to five different taphonomic states. Previous work stated that seals at Seymour Island get stranded inland around the breeding season. However, it is not clear if the species breeds in this area. The abundance of crabeater seals and the ice condition along Admiralty Sound (Estrecho Bouchard) were obtained by aerial surveys during spring (2015–17). It appears that the species uses the strait as a passage to breeding grounds. Under heavy ice conditions, the seals become stranded in the middle section of this strait and wander inland through a valley that represents the mouth of an ephemeral stream that ends at the pack ice level. This situation was observed in 2014 and 2015 when recently dead seals were found, evidencing that this natural trap is still active. Nonetheless, in 2016 and 2017, during an early breakup of Admiralty Sound, the seals that remained in the area were more numerous than in 2015 but they did not get stranded inland. This early breakup may encourage the seals to breed there in the presence of open water areas with ice floes. Article in Journal/Newspaper Antarctic Science Crabeater Seals Seymour Island Weddell Sea Cambridge University Press Weddell Sea Weddell Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Estrecho ENVELOPE(-60.783,-60.783,-62.467,-62.467) Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Bouchard ENVELOPE(-57.333,-57.333,-64.200,-64.200) isla Marambio ENVELOPE(-56.635,-56.635,-64.239,-64.239) Admiralty Sound ENVELOPE(-57.167,-57.167,-64.333,-64.333) estrecho Bouchard ENVELOPE(-57.333,-57.333,-64.200,-64.200) Antarctic Science 31 3 109 115 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Negrete, Javier Soibelzon, Leopoldo H. Soibelzon, Esteban Lusky, Jorge New records of mummified crabeater seals on islands bordering Admiralty Sound, Weddell Sea |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Ninety-six mummified crabeater seals discovered at Seymour Island (Isla Marambio) are reported. Each specimen was georeferenced, photographed and assigned to five different taphonomic states. Previous work stated that seals at Seymour Island get stranded inland around the breeding season. However, it is not clear if the species breeds in this area. The abundance of crabeater seals and the ice condition along Admiralty Sound (Estrecho Bouchard) were obtained by aerial surveys during spring (2015–17). It appears that the species uses the strait as a passage to breeding grounds. Under heavy ice conditions, the seals become stranded in the middle section of this strait and wander inland through a valley that represents the mouth of an ephemeral stream that ends at the pack ice level. This situation was observed in 2014 and 2015 when recently dead seals were found, evidencing that this natural trap is still active. Nonetheless, in 2016 and 2017, during an early breakup of Admiralty Sound, the seals that remained in the area were more numerous than in 2015 but they did not get stranded inland. This early breakup may encourage the seals to breed there in the presence of open water areas with ice floes. |
format |
Article in Journal/Newspaper |
author |
Negrete, Javier Soibelzon, Leopoldo H. Soibelzon, Esteban Lusky, Jorge |
author_facet |
Negrete, Javier Soibelzon, Leopoldo H. Soibelzon, Esteban Lusky, Jorge |
author_sort |
Negrete, Javier |
title |
New records of mummified crabeater seals on islands bordering Admiralty Sound, Weddell Sea |
title_short |
New records of mummified crabeater seals on islands bordering Admiralty Sound, Weddell Sea |
title_full |
New records of mummified crabeater seals on islands bordering Admiralty Sound, Weddell Sea |
title_fullStr |
New records of mummified crabeater seals on islands bordering Admiralty Sound, Weddell Sea |
title_full_unstemmed |
New records of mummified crabeater seals on islands bordering Admiralty Sound, Weddell Sea |
title_sort |
new records of mummified crabeater seals on islands bordering admiralty sound, weddell sea |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1017/s0954102019000051 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102019000051 |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-60.783,-60.783,-62.467,-62.467) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-57.333,-57.333,-64.200,-64.200) ENVELOPE(-56.635,-56.635,-64.239,-64.239) ENVELOPE(-57.167,-57.167,-64.333,-64.333) ENVELOPE(-57.333,-57.333,-64.200,-64.200) |
geographic |
Weddell Sea Weddell Seymour Seymour Island Estrecho Marambio Bouchard isla Marambio Admiralty Sound estrecho Bouchard |
geographic_facet |
Weddell Sea Weddell Seymour Seymour Island Estrecho Marambio Bouchard isla Marambio Admiralty Sound estrecho Bouchard |
genre |
Antarctic Science Crabeater Seals Seymour Island Weddell Sea |
genre_facet |
Antarctic Science Crabeater Seals Seymour Island Weddell Sea |
op_source |
Antarctic Science volume 31, issue 3, page 109-115 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102019000051 |
container_title |
Antarctic Science |
container_volume |
31 |
container_issue |
3 |
container_start_page |
109 |
op_container_end_page |
115 |
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1792495024968040448 |