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Lost at sea: genetic, oceanographic and meteorological evidence for storm-forced dispersal

Monzón-Argüello, C., Dell’Amico, F., Morinière, P., Marco, A., López-Jurado, L.F., Hays, Graeme C., Scott, Rebecca, Marsh, Robert and Lee, Patricia L.M. 2012, Lost at sea: genetic, oceanographic and meteorological evidence for storm-forced dispersal, Journal of the Royal Society Interface, vol. 9, no. 73, pp. 1725-1732.

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Title Lost at sea: genetic, oceanographic and meteorological evidence for storm-forced dispersal
Author(s) Monzón-Argüello, C.
Dell’Amico, F.
Morinière, P.
Marco, A.
López-Jurado, L.F.
Hays, Graeme C.ORCID iD for Hays, Graeme C. orcid.org/0000-0002-3314-8189
Scott, Rebecca
Marsh, Robert
Lee, Patricia L.M.ORCID iD for Lee, Patricia L.M. orcid.org/0000-0002-8489-9206
Journal name Journal of the Royal Society Interface
Volume number 9
Issue number 73
Start page 1725
End page 1732
Total pages 8
Publisher Royal Society Publishing
Place of publication London, England
Publication date 2012-08-07
ISSN 1742-5689
1742-5662
Keyword(s) loggerhead sea turtles
mtDNA
Lagrangian buoy trajectories
particle tracking
storm tracks
mixed stock analysis
Summary For many species, there is broad-scale dispersal of juvenile stages and/or long-distance migration of individuals and hence the processes that drive these various wide-ranging movements have important life-history consequences. Sea turtles are one of these paradigmatic long-distance travellers, with hatchlings thought to be dispersed by ocean currents and adults often shuttling between distant breeding and foraging grounds. Here, we use multi-disciplinary oceanographic, atmospheric and genetic mixed stock analyses to show that juvenile turtles are encountered ‘downstream’ at sites predicted by currents. However, in some cases, unusual occurrences of juveniles are more readily explained by storm events and we show that juvenile turtles may be displaced thousands of kilometres from their expected dispersal based on prevailing ocean currents. As such, storms may be a route by which unexpected areas are encountered by juveniles which may in turn shape adult migrations. Increased stormy weather predicted under climate change scenarios suggests an increasing role of storms in dispersal of sea turtles and other marine groups with life-stages near the ocean surface.
Language eng
Field of Research 070499 Fisheries Sciences not elsewhere classified
060411 Population, Ecological and Evolutionary Genetics
060205 Marine and Estuarine Ecology (incl Marine Ichthyology)
Socio Economic Objective 960808 Marine Flora, Fauna and Biodiversity
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2012, Royal Society Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30056210

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