The foraging activity and provisioning strategies of Antarctic fur seals in relation to changes in oceanographic conditions at the Kerguelen Archipelago ...
The study examined how the foraging activity, foraging efficiency and the pup provisioning of a top marine predator, the Antarctic fur seal (Arctocephalus gazella), were affected by inter-annual variability in oceanographic conditions and prey availability in the Antarctic Polar Frontal Zone (APFZ),...
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| Format: | Thesis |
| Language: | unknown |
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University Of Tasmania
2023
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| Online Access: | https://dx.doi.org/10.25959/23228246.v1 https://figshare.utas.edu.au/articles/thesis/The_foraging_activity_and_provisioning_strategies_of_Antarctic_fur_seals_in_relation_to_changes_in_oceanographic_conditions_at_the_Kerguelen_Archipelago/23228246/1 |
| Summary: | The study examined how the foraging activity, foraging efficiency and the pup provisioning of a top marine predator, the Antarctic fur seal (Arctocephalus gazella), were affected by inter-annual variability in oceanographic conditions and prey availability in the Antarctic Polar Frontal Zone (APFZ), in February 1998, 1999 and 2000. It formed part of a larger multidisciplinary study examining predator-prey relationships in relation to oceanographic features between Antarctic fur seals, king penguins (Aptenodytes patagonicus) and their mesopelagic, fish prey, myctophids. The Kerguelen Archipelago (49°07'S, 70°45'E), which is located in a region of the southern Indian Ocean characterised by considerable hydrographic complexity, was chosen as the study site. Seals were fitted with time-depth recorders and/or satellite transmitters to study their diving behaviour and at-sea distribution. Intra-population variability in diving behaviour was studied for female fur seals from two study sites at Cap Noir and ... |
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