Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses
Geolocating-time-depth-temperature-recorders (GLTDTR) provided a continuous record of diving behaviour in relation to water temperature for ten female southern elephant seals from Macquarie Island during their post-breeding trips to sea. Four water bodies were determined from depth/temperature profi...
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Online Access: | https://researchers.mq.edu.au/en/publications/bcecdcf9-166d-4887-a029-b71076bb113e https://doi.org/10.1017/S0954102001000529 http://www.scopus.com/inward/record.url?scp=0035210417&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/bcecdcf9-166d-4887-a029-b71076bb113e 2023-05-15T14:01:24+02:00 Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses Field, Iain Hindell, Mark Slip, David Michael, Kelvin 2001 https://researchers.mq.edu.au/en/publications/bcecdcf9-166d-4887-a029-b71076bb113e https://doi.org/10.1017/S0954102001000529 http://www.scopus.com/inward/record.url?scp=0035210417&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Field , I , Hindell , M , Slip , D & Michael , K 2001 , ' Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses ' , Antarctic Science , vol. 13 , no. 4 , pp. 371-379 . https://doi.org/10.1017/S0954102001000529 Foraging behaviour Southern elephant seal Southern Ocean Water temperature article 2001 ftmacquarieunicr https://doi.org/10.1017/S0954102001000529 2022-11-06T06:51:15Z Geolocating-time-depth-temperature-recorders (GLTDTR) provided a continuous record of diving behaviour in relation to water temperature for ten female southern elephant seals from Macquarie Island during their post-breeding trips to sea. Four water bodies were determined from depth/temperature profiles recorded by the GLTDTRs. These water bodies corresponded to Sub-Antarctic Mode Water (SAMW), Polar Front Zone Water (PFZW), Polar Front Water (PFW) and Antarctic Water Masses (AWM). Thermal structures within these water bodies did not influence seal diving behaviour. Overall mean dive depth, nocturnal dive depths, diurnal dive depths and dive duration were similar in all areas. However, individuals did change behaviour as they moved between different water bodies. Seals also used different water bodies in the two different years of the study. We suggest that variations in foraging behaviour among seals are a result of prey distribution associated with local oceanographic conditions, but also reflect important individual foraging strategies within thermal zones. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Elephant Seal Elephant Seals Macquarie Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean Macquarie University Research Portal Antarctic Southern Ocean Antarctic Science 13 4 371 379 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Foraging behaviour Southern elephant seal Southern Ocean Water temperature |
spellingShingle |
Foraging behaviour Southern elephant seal Southern Ocean Water temperature Field, Iain Hindell, Mark Slip, David Michael, Kelvin Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses |
topic_facet |
Foraging behaviour Southern elephant seal Southern Ocean Water temperature |
description |
Geolocating-time-depth-temperature-recorders (GLTDTR) provided a continuous record of diving behaviour in relation to water temperature for ten female southern elephant seals from Macquarie Island during their post-breeding trips to sea. Four water bodies were determined from depth/temperature profiles recorded by the GLTDTRs. These water bodies corresponded to Sub-Antarctic Mode Water (SAMW), Polar Front Zone Water (PFZW), Polar Front Water (PFW) and Antarctic Water Masses (AWM). Thermal structures within these water bodies did not influence seal diving behaviour. Overall mean dive depth, nocturnal dive depths, diurnal dive depths and dive duration were similar in all areas. However, individuals did change behaviour as they moved between different water bodies. Seals also used different water bodies in the two different years of the study. We suggest that variations in foraging behaviour among seals are a result of prey distribution associated with local oceanographic conditions, but also reflect important individual foraging strategies within thermal zones. |
format |
Article in Journal/Newspaper |
author |
Field, Iain Hindell, Mark Slip, David Michael, Kelvin |
author_facet |
Field, Iain Hindell, Mark Slip, David Michael, Kelvin |
author_sort |
Field, Iain |
title |
Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses |
title_short |
Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses |
title_full |
Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses |
title_fullStr |
Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses |
title_full_unstemmed |
Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses |
title_sort |
foraging strategies of southern elephant seals (mirounga leonina) in relation to frontal zones and water masses |
publishDate |
2001 |
url |
https://researchers.mq.edu.au/en/publications/bcecdcf9-166d-4887-a029-b71076bb113e https://doi.org/10.1017/S0954102001000529 http://www.scopus.com/inward/record.url?scp=0035210417&partnerID=8YFLogxK |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctic Science Elephant Seal Elephant Seals Macquarie Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Science Elephant Seal Elephant Seals Macquarie Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean |
op_source |
Field , I , Hindell , M , Slip , D & Michael , K 2001 , ' Foraging strategies of southern elephant seals (Mirounga leonina) in relation to frontal zones and water masses ' , Antarctic Science , vol. 13 , no. 4 , pp. 371-379 . https://doi.org/10.1017/S0954102001000529 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1017/S0954102001000529 |
container_title |
Antarctic Science |
container_volume |
13 |
container_issue |
4 |
container_start_page |
371 |
op_container_end_page |
379 |
_version_ |
1766271222249684992 |