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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Cambridge University Press
2001
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Online Access: | https://doi.org/10.1017/S0954102001000529 http://ecite.utas.edu.au/22389 |
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ftunivtasecite:oai:ecite.utas.edu.au:22389 2023-05-15T13:59:07+02:00 Foraging strategies of southern elephant seals ( Mirounga leonina ) in relation to frontal zones and water masses Field, IC Hindell, MA Slip, D Michael, KJ 2001 https://doi.org/10.1017/S0954102001000529 http://ecite.utas.edu.au/22389 en eng Cambridge University Press http://dx.doi.org/10.1017/S0954102001000529 Field, IC and Hindell, MA and Slip, D and Michael, KJ, Foraging strategies of southern elephant seals ( Mirounga leonina ) in relation to frontal zones and water masses, Antarctic Science, 13, (4) pp. 371-379. ISSN 0954-1020 (2001) [Refereed Article] http://ecite.utas.edu.au/22389 Environmental Sciences Environmental Science and Management Wildlife and Habitat Management Refereed Article PeerReviewed 2001 ftunivtasecite https://doi.org/10.1017/S0954102001000529 2019-12-13T21:04:19Z 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 Seals Macquarie Island Mirounga leonina Southern Elephant Seals eCite UTAS (University of Tasmania) Antarctic Antarctic Science 13 4 371 379 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management |
spellingShingle |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management Field, IC Hindell, MA Slip, D Michael, KJ Foraging strategies of southern elephant seals ( Mirounga leonina ) in relation to frontal zones and water masses |
topic_facet |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management |
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, IC Hindell, MA Slip, D Michael, KJ |
author_facet |
Field, IC Hindell, MA Slip, D Michael, KJ |
author_sort |
Field, IC |
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 |
publisher |
Cambridge University Press |
publishDate |
2001 |
url |
https://doi.org/10.1017/S0954102001000529 http://ecite.utas.edu.au/22389 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Science Elephant Seals Macquarie Island Mirounga leonina Southern Elephant Seals |
genre_facet |
Antarc* Antarctic Antarctic Science Elephant Seals Macquarie Island Mirounga leonina Southern Elephant Seals |
op_relation |
http://dx.doi.org/10.1017/S0954102001000529 Field, IC and Hindell, MA and Slip, D and Michael, KJ, Foraging strategies of southern elephant seals ( Mirounga leonina ) in relation to frontal zones and water masses, Antarctic Science, 13, (4) pp. 371-379. ISSN 0954-1020 (2001) [Refereed Article] http://ecite.utas.edu.au/22389 |
op_doi |
https://doi.org/10.1017/S0954102001000529 |
container_title |
Antarctic Science |
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13 |
container_issue |
4 |
container_start_page |
371 |
op_container_end_page |
379 |
_version_ |
1766267514678935552 |