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Satellite Tracking

Why did animal X stop transmitting?

APECS 2016: Basking shark SPOT tags

A project of APECS in conjunction with the partners and sponsors detailed below.

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NameSpeciesLife StageRelease DateLast LocationDays Transmitted
Anna Basking SharkAdult2016-05-152017-06-15396
Camille Basking SharkAdult2016-05-262016-06-016

Click on an animal's name for maps and more information.


Satellite tagging is useful to study individual large-scale movements and help us to better understand basking sharks movement, behaviour and habitat use.

APECS already deployed satellite tags in 2009 in Brittany, France and in the waters of the Isles of Man in collaboration with the Manx Basking Shark Watch. The 10 MK10 PAT tags manufactured by Wildlife Computers provided a new insight in sharks horizontal and vertical movements as presented in the study final report.

The aim of this new project is to deploy, in the waters of Glénan Archipelago situated on the south coast of Brittany in France, 2 SPOT5 tags manufactured by Wildlife Computers, which provide information on the position of the shark each time it comes to the surface and 2 MK10 PAT tags also manufactured by Wildlife Computers. The movements of sharks fitted with the SPOT5 tags will be hosted live on this web page.

The PAT tags have been designed to collect data over multiple months and then detach from the shark. Once the tag detaches it floats to the surface and transmits the collected data on depth, temperature and light levels to over passing Argos satellites. If you see one of these satellite tags along the coastline then please pick it up and contact us, there is a reward available as the data they contain are important to the project.

The results will contribute to the European tagging effort and will help to understand how basking sharks use the North-East Atlantic waters.

Project Partners

APECS (Association Pour l’Etude et la Conservation des Sélaciens) was founded in 1997 in France. It's a non-governmental organisation based in Brest (Brittany) and dedicated to the study and conservation of sharks, skates and rays. The aims are to contribute to a better scientific knwoledge setting up research projects and to increase public awarness of the conservation problems faced by the elasmobranchs.


Project Sponsors

This project is sponsored by :

- l'Agence des aires marines protégées

- le département du Finistère

- la société Exagone

- la Fondation Bouygues Telecom

- la commune de Plobannalec-Lesconil

- le centre nautique et de plein air de Lesconil




  • The presentation of data here does not constitute publication. All data remain copyright of the project partners. Maps or data on this website may not be used or referenced without explicit written consent.
  • For more information please visit the project website.
  • If you have questions or would like to request the use of maps or data for this project please contact

SEATURTLE.ORG collaborates with Argos to help scientists and conservationists manage and analyse their valuable animal tracking data.

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