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Leatherback turtles satellite-tagged in European waters

Doyle, Thomas K., Houghton, Jonathan D.R., O'Súilleabháin, Pádraig Frank, Hobson, Victoria J., Marnell, Ferdia, Davenport, John and Hays, Graeme C. 2008, Leatherback turtles satellite-tagged in European waters, Endangered species research, vol. 4, pp. 23-31, doi: 10.3354/esr00076.

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Title Leatherback turtles satellite-tagged in European waters
Author(s) Doyle, Thomas K.
Houghton, Jonathan D.R.
O'Súilleabháin, Pádraig Frank
Hobson, Victoria J.
Marnell, Ferdia
Davenport, John
Hays, Graeme C.ORCID iD for Hays, Graeme C. orcid.org/0000-0002-3314-8189
Journal name Endangered species research
Volume number 4
Start page 23
End page 31
Total pages 9
Publisher Inter-Research
Place of publication Oldendorf, Germany
Publication date 2008
ISSN 1863-5407
1613-4796
Keyword(s) dermochelys
summer residence
Northeast Atlantic
Ireland
high-use area
abundance
malem deepest dive
Summary The North Atlantic is considered a stronghold for the critically endangered leatherback sea turtle. However, limited information exists regarding the movements of individuals to and from the seas off Europe’s northwesterly fringe, an area where leatherbacks have been historically sighted for the past 200 yr. Here, we used satellite telemetry to record the movements and behaviour of 2 individuals bycaught in fisheries off the southwest coast of Ireland. The turtle T1 (tagged 1 September 2005; female; tracked 375 d) immediately travelled south via Madeira and the Canaries, before residing in West African waters for 3 mo. In spring, T1 migrated north towards Newfoundland where transmissions ceased. T2 (29 June 2006; male; 233 d) travelled south for a short period before spending 66 d west of the Bay of Biscay, an area previously asserted as a high-use area for leatherbacks. This prolonged high latitude summer residence corresponded with a mesoscale feature evident from satellite imagery, with the implication that this turtle had found a rich feeding site. A marked change in dive behaviour was apparent as the turtle exited this feature and provided useful insights on leatherback diving behaviour. T2 headed south in October 2006, and performed the deepest-ever dive recorded by a reptile (1280 m) southwest of Cape Verde. Unlike T1, T2 swam southwest towards Brazil before approaching the major nesting beaches of French Guiana and Surinam. Importantly, these tracks document the movement of leatherbacks from one of the remotest foraging grounds in the North Atlantic.
Language eng
DOI 10.3354/esr00076
Field of Research 069999 Biological Sciences not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, Inter-Research
Persistent URL http://hdl.handle.net/10536/DRO/DU:30058338

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.