Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean
Many pinniped species perform a specific dive type, referred to as a ‘drift dive’, where they drift passively through the water column. This dive type has been suggested to function as a resting/sleeping or food processing dive, and can be used as an indication of feeding success by calculating the...
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2014
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/drift-diving-by-hooded-seals-cystophora-cristata-in-the-northwest-atlantic-ocean(3f13c47e-e68f-42c2-a7c1-07a0a6169276).html https://doi.org/10.1371/journal.pone.0103072 https://research-repository.st-andrews.ac.uk/bitstream/10023/5278/1/Boehme_2014_PLOSone_Drift.pdf http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0103072#s5 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0103072 |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/3f13c47e-e68f-42c2-a7c1-07a0a6169276 2023-05-15T15:59:53+02:00 Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean Andersen, Julie Stenson, Garry Skern-Maurizen, Mette Wiersma , Yolanda Rosing-Asvid, Aqqalu Boehme, Lars Hammill, Mike 2014-07-22 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/drift-diving-by-hooded-seals-cystophora-cristata-in-the-northwest-atlantic-ocean(3f13c47e-e68f-42c2-a7c1-07a0a6169276).html https://doi.org/10.1371/journal.pone.0103072 https://research-repository.st-andrews.ac.uk/bitstream/10023/5278/1/Boehme_2014_PLOSone_Drift.pdf http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0103072#s5 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0103072 eng eng info:eu-repo/semantics/openAccess Andersen , J , Stenson , G , Skern-Maurizen , M , Wiersma , Y , Rosing-Asvid , A , Boehme , L & Hammill , M 2014 , ' Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean ' , PLoS One , vol. 9 , no. 7 , e103072 . https://doi.org/10.1371/journal.pone.0103072 article 2014 ftunstandrewcris https://doi.org/10.1371/journal.pone.0103072 2021-12-26T14:24:54Z Many pinniped species perform a specific dive type, referred to as a ‘drift dive’, where they drift passively through the water column. This dive type has been suggested to function as a resting/sleeping or food processing dive, and can be used as an indication of feeding success by calculating the daily change in vertical drift rates over time, which reflects the relative fluctuations in buoyancy of the animal as the proportion of lipids in the body change. Northwest Atlantic hooded seals perform drift dives at regular intervals throughout their annual migration across the Northwest Atlantic Ocean. We found that the daily change in drift rate varied with geographic location and the time of year and that this differed between sexes. Positive changes in buoyancy (reflecting increased lipid stores) were evident throughout their migration range and although overlapping somewhat, they were not statistically associated with high use areas as indicated by First Passage Time (FPT). Differences in the seasonal fluctuations of buoyancy between males and females suggest that they experience a difference in patterns of energy gain and loss during winter and spring, associated with breeding. The fluctuations in buoyancy around the moulting period were similar between sexes. Article in Journal/Newspaper Cystophora cristata Northwest Atlantic University of St Andrews: Research Portal PLoS ONE 9 7 e103072 |
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Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
Many pinniped species perform a specific dive type, referred to as a ‘drift dive’, where they drift passively through the water column. This dive type has been suggested to function as a resting/sleeping or food processing dive, and can be used as an indication of feeding success by calculating the daily change in vertical drift rates over time, which reflects the relative fluctuations in buoyancy of the animal as the proportion of lipids in the body change. Northwest Atlantic hooded seals perform drift dives at regular intervals throughout their annual migration across the Northwest Atlantic Ocean. We found that the daily change in drift rate varied with geographic location and the time of year and that this differed between sexes. Positive changes in buoyancy (reflecting increased lipid stores) were evident throughout their migration range and although overlapping somewhat, they were not statistically associated with high use areas as indicated by First Passage Time (FPT). Differences in the seasonal fluctuations of buoyancy between males and females suggest that they experience a difference in patterns of energy gain and loss during winter and spring, associated with breeding. The fluctuations in buoyancy around the moulting period were similar between sexes. |
format |
Article in Journal/Newspaper |
author |
Andersen, Julie Stenson, Garry Skern-Maurizen, Mette Wiersma , Yolanda Rosing-Asvid, Aqqalu Boehme, Lars Hammill, Mike |
spellingShingle |
Andersen, Julie Stenson, Garry Skern-Maurizen, Mette Wiersma , Yolanda Rosing-Asvid, Aqqalu Boehme, Lars Hammill, Mike Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean |
author_facet |
Andersen, Julie Stenson, Garry Skern-Maurizen, Mette Wiersma , Yolanda Rosing-Asvid, Aqqalu Boehme, Lars Hammill, Mike |
author_sort |
Andersen, Julie |
title |
Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean |
title_short |
Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean |
title_full |
Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean |
title_fullStr |
Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean |
title_full_unstemmed |
Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean |
title_sort |
drift diving by hooded seals ( cystophora cristata ) in the northwest atlantic ocean |
publishDate |
2014 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/drift-diving-by-hooded-seals-cystophora-cristata-in-the-northwest-atlantic-ocean(3f13c47e-e68f-42c2-a7c1-07a0a6169276).html https://doi.org/10.1371/journal.pone.0103072 https://research-repository.st-andrews.ac.uk/bitstream/10023/5278/1/Boehme_2014_PLOSone_Drift.pdf http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0103072#s5 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0103072 |
genre |
Cystophora cristata Northwest Atlantic |
genre_facet |
Cystophora cristata Northwest Atlantic |
op_source |
Andersen , J , Stenson , G , Skern-Maurizen , M , Wiersma , Y , Rosing-Asvid , A , Boehme , L & Hammill , M 2014 , ' Drift diving by hooded seals ( Cystophora cristata ) in the Northwest Atlantic Ocean ' , PLoS One , vol. 9 , no. 7 , e103072 . https://doi.org/10.1371/journal.pone.0103072 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0103072 |
container_title |
PLoS ONE |
container_volume |
9 |
container_issue |
7 |
container_start_page |
e103072 |
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