Beneath the Antarctic sea-ice: Fine-scale analysis of Weddell seal (Leptonychotes weddellii) behaviour and predator-prey interactions, using micro-sonar data in Terre Adélie ...

In this study, we tried to assess:i) whether and how female Weddell seals feed (frequency, depth, duration) during lactation,ii) what is their utilization of a limited foraging area (benthic or pelagic dives) as they are spatially constrained by the presence of their pup, andiii) how can we characte...

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Bibliographic Details
Main Authors: Antoine, Adelie, Labrousse, Sara, Goulet, Pauline, Chevallay, Mathilde, Joris, Laborie, Picard, Baptiste, Guinet, Christophe, Nerini, David, Charrassin, Jean-Benoit, Heerah, Karine
Format: Article in Journal/Newspaper
Language:unknown
Published: Zenodo 2023
Subjects:
Weddell seal
bio-logging
foraging behaviour
sonar tags
diving
predator-prey interaction
Antarctic
East Antarctica
Terre Adélie
Terre-Adélie
The Antarctic
Weddell
Antarc*
Antarctica
Institut Polaire Français
Sea ice
Weddell Seal
Weddell Seals
Online Access:https://dx.doi.org/10.5281/zenodo.10142522
https://zenodo.org/doi/10.5281/zenodo.10142522
Description
Summary:In this study, we tried to assess:i) whether and how female Weddell seals feed (frequency, depth, duration) during lactation,ii) what is their utilization of a limited foraging area (benthic or pelagic dives) as they are spatially constrained by the presence of their pup, andiii) how can we characterize their foraging dives and the approach/catching phases using new tools providing a more detailed description of their behaviour.Sonar tags were deployed on three breeding female Weddell seals in Terre Adélie (East Antarctica) in November 2019, to study animals' movements and dives at high resolution (3D acceleration, magnetometry, time and depth and GPS location), as well as information on prey and predator-prey interactions using acoustic data. ... : Funding provided by: Centre National d'Études SpatialesCrossref Funder Registry ID: https://ror.org/04h1h0y33Award Number: Funding provided by: BNP Paribas (France)Crossref Funder Registry ID: https://ror.org/02v616z87Award Number: Funding provided by: Groupe de recherche Ocean et Mers - Centre National de la Recherche Scientifique*Crossref Funder Registry ID: Award Number: Funding provided by: European CommissionCrossref Funder Registry ID: https://ror.org/00k4n6c32Award Number: H2020-MSCA-IF-2017 Funding provided by: Institut Polaire Français Paul Émile VictorCrossref Funder Registry ID: https://ror.org/011ed2d57Award Number: ...

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