Linking foraging behaviour of post-breeding adult female elephant seals from Marion Island to physical dynamics and productivity at the South-West Indian Ridge

Advances in remote sensing and tagging technology have made it possible to investigate the relationship between oceanographic dynamics and the distribution of certain marine species. For this study, surface chlorophyII-a concentration was used as a proxy for underlying related productivity, rather t...

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Bibliographic Details
Main Author: Biermann, Lauren
Format: Master Thesis
Language:English
Published: University of Cape Town 2011
Subjects:
Applied Marine Science
Indian
Elephant Seals
Marion Island
Southern Elephant Seals
Online Access:http://hdl.handle.net/11427/10166
https://open.uct.ac.za/bitstream/11427/10166/1/thesis_sci_2011_biermann_l.pdf
id ftunivcapetownir:oai:localhost:11427/10166
record_format openpolar
spelling ftunivcapetownir:oai:localhost:11427/10166 2023-05-15T16:05:36+02:00 Linking foraging behaviour of post-breeding adult female elephant seals from Marion Island to physical dynamics and productivity at the South-West Indian Ridge Biermann, Lauren 2011 application/pdf http://hdl.handle.net/11427/10166 https://open.uct.ac.za/bitstream/11427/10166/1/thesis_sci_2011_biermann_l.pdf eng eng University of Cape Town Faculty of Science Department of Oceanography http://hdl.handle.net/11427/10166 https://open.uct.ac.za/bitstream/11427/10166/1/thesis_sci_2011_biermann_l.pdf Applied Marine Science Master Thesis Masters MSc 2011 ftunivcapetownir 2022-09-13T05:51:12Z Advances in remote sensing and tagging technology have made it possible to investigate the relationship between oceanographic dynamics and the distribution of certain marine species. For this study, surface chlorophyII-a concentration was used as a proxy for underlying related productivity, rather than as a direct indicator of prey density. Post-breeding, adult female southern elephant seals from Marion Island were tagged with conductivity, temperature and depth satellite-relayed data loggers (CTD-SRDL's) and their foraging behaviour was examined in relation to different chlorophyII-a concentrations. Optimal foraging and area restricted search theories predict that travelling speed and turning frequency would be quantifiably affected by prey density, which is in turn affected by the underlying richness of primary producers. Master Thesis Elephant Seals Marion Island Southern Elephant Seals University of Cape Town: OpenUCT Indian
institution Open Polar
collection University of Cape Town: OpenUCT
op_collection_id ftunivcapetownir
language English
topic Applied Marine Science
spellingShingle Applied Marine Science
Biermann, Lauren
Linking foraging behaviour of post-breeding adult female elephant seals from Marion Island to physical dynamics and productivity at the South-West Indian Ridge
topic_facet Applied Marine Science
description Advances in remote sensing and tagging technology have made it possible to investigate the relationship between oceanographic dynamics and the distribution of certain marine species. For this study, surface chlorophyII-a concentration was used as a proxy for underlying related productivity, rather than as a direct indicator of prey density. Post-breeding, adult female southern elephant seals from Marion Island were tagged with conductivity, temperature and depth satellite-relayed data loggers (CTD-SRDL's) and their foraging behaviour was examined in relation to different chlorophyII-a concentrations. Optimal foraging and area restricted search theories predict that travelling speed and turning frequency would be quantifiably affected by prey density, which is in turn affected by the underlying richness of primary producers.
format Master Thesis
author Biermann, Lauren
author_facet Biermann, Lauren
author_sort Biermann, Lauren
title Linking foraging behaviour of post-breeding adult female elephant seals from Marion Island to physical dynamics and productivity at the South-West Indian Ridge
title_short Linking foraging behaviour of post-breeding adult female elephant seals from Marion Island to physical dynamics and productivity at the South-West Indian Ridge
title_full Linking foraging behaviour of post-breeding adult female elephant seals from Marion Island to physical dynamics and productivity at the South-West Indian Ridge
title_fullStr Linking foraging behaviour of post-breeding adult female elephant seals from Marion Island to physical dynamics and productivity at the South-West Indian Ridge
title_full_unstemmed Linking foraging behaviour of post-breeding adult female elephant seals from Marion Island to physical dynamics and productivity at the South-West Indian Ridge
title_sort linking foraging behaviour of post-breeding adult female elephant seals from marion island to physical dynamics and productivity at the south-west indian ridge
publisher University of Cape Town
publishDate 2011
url http://hdl.handle.net/11427/10166
https://open.uct.ac.za/bitstream/11427/10166/1/thesis_sci_2011_biermann_l.pdf
geographic Indian
geographic_facet Indian
genre Elephant Seals
Marion Island
Southern Elephant Seals
genre_facet Elephant Seals
Marion Island
Southern Elephant Seals
op_relation http://hdl.handle.net/11427/10166
https://open.uct.ac.za/bitstream/11427/10166/1/thesis_sci_2011_biermann_l.pdf
_version_ 1766401499814952960

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