Filippo Galimberti1 & Simona Sanvito1,2 1 Elephant Seal Research Group, Sea Lion Island, Falkland Islands 2 Facultad de Ciencias Marinas, Universidad Autónoma de Baja California, Ensenada, México Tracking at sea the elephant seals of Sea Lion Island. 2011 report. Ensenada, BC, Mexico, 28/01/2012 © Filippo Galimberti & Simona Sanvito, ESRG, 2009-2012 Not to be cited without written permission of the authors Address for correspondence: Dr. Filippo Galimberti ESRG 3802 Rosecrans St., San Diego, CA, 92110, USA Email
[email protected] - Website www.eleseal.org Abstract We deployed a total of 24 satellite linked tags on female southern elephant seals at Sea Lion Island (Falkland Islands; SLI hereafter) during the 2009-2011 breeding season, to track their movements at sea. Although southern elephant seal females have been frequently satellite tagged in other populations of the South Georgia stock, this was the first tracking-at-sea project carried out on elephant seals of the Falklands. In this report we briefly summarize the rationale of the project, we describe the deployment procedure, we present results on the movements of the tagged females, we discuss the pros and cons of the project, and of the deployment procedure in particular, and we examine the perspectives of the project follow up. We conclude that: 1) the deployment procedure has been successful, with modest risk for the animals and collection of useful data; 2) SLI represents an ideal place for a large scale tracking project, due to the tameness of the seals, the easiness of