February 1st to 5th 2016
Olhão, Portugal
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Tracking white sharks in a dynamic system at the southern tip of Africa

Scientific Exhibition
Biodiversity Effects
Thursday, February 4, 2016 -
17:30 to 19:30

Jewell, O.J.D. 1 Edwards, D. 2

1Dyer Island Conservation Trust, Kleinbaai, South Africa; University of Pretoria, Department of Zoology & Entomology, Hatfield, South Africa; Royal Netherlands Institute of Sea Research (NIOZ) Yerseke, Yerseke, Netherlands, present address
2Dyer Island Conservation Trust, Kleinbaai, South Africa; EDNA, Leek, United Kingdom

Sharks and rays are among the most important of marine megafauna as they are ecologically vital predators. However, most species are threatened and over exploited. Identifying core-habitats and movement patterns within aggregation areas is critical for conservation and management efforts. White sharks are threatened globally and considered at risk of extinction. South Africa hosts the largest known concentration of the species with several documented coastal aggregations. This digital object details the various types of biotelemetry used to collect movement data from sharks as well as deployment methods and data analysis, with specific emphasis on active acoustic transmitters and manual tracking of individual sharks in Gansbaai, Western Cape (as in Jewell et al., 2014). Reference: Jewell OJD, Wcisel MA, Towner AV, Chivell W, van der Merwe L, Bester MN. 2014 Core habitat use of an apex predator in a complex marine landscape. Marine Ecology Progress Series 506: 231–242.Additional Information: There are no competing interests Author Contributions: Oliver Jewell: PI of shark tracking project, conceived initial idea, tagged and tracked sharks, co-wrote screenplay, narrated final productDavid Edwards: Directed, filmed and edited footage, wrote screenplay, produced final product

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