A review of long‐distance movements by marine turtles, and the possible role of ocean currents

@article{Luschi2003ARO,
  title={A review of long‐distance movements by marine turtles, and the possible role of ocean currents},
  author={Paolo Luschi and Graeme C. Hays and Floriano Papi},
  journal={Oikos},
  year={2003},
  volume={103},
  pages={293-302}
}
Sea turtle movements often occur in open-sea unsheltered areas, and are therefore likely to be influenced by major oceanographic processes. Only recently has work started to examine the possible relationships of these movements with dynamic oceanic features, and consequently a clear picture of such interaction is only available in a few cases. Newborn sea turtles are thought to rely on oceanic currents to reach their pelagic nursery habitats. The actual extent and timing of these developmental… Expand

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References

SHOWING 1-10 OF 64 REFERENCES
Open-sea migration of magnetically disturbed sea turtles.
TLDR
Findings show that magnetic cues are not essential to turtles making the return trip to the Brazilian coast, and the navigational mechanisms used by these turtles remain enigmatic. Expand
Biphasal long-distance migration in green turtles
Sea turtles have recently been shown to have the sensory ability to use magnetic information for guidance in the open ocean, although the importance of different potential navigational cues remainsExpand
The navigational feats of green sea turtles migrating from Ascension Island investigated by satellite telemetry
TLDR
The postnesting migration of six green turtle females from Ascension Island to Brazil shows that turtles are able to maintain straight courses over long distances in the open sea, may perform exploratory movements in different directions, and initially keep the same direction as the west–south–westerly flowing current. Expand
New Perspectives on the Pelagic Stage of Sea Turtle Development
TLDR
It is now obvious that when young cultured sea turtles are released in so-called head-starting projects, the release sites ought to be chosen with the greatest care, and it is also necessary to avoid release localities where the convergence habitat may carry heavy loads of material. Expand
Ecology of neonate loggerhead turtles inhabiting lines of downwelling near a Gulf Stream front
TLDR
Data from the present study support a hypothesis describing post-hatchling loggerheads as facultatively active but principally low-energy float-and-wait foragers both within and outside of downwelling lines. Expand
Intra-Mediterranean migrations of loggerhead sea turtles (Carettacaretta) monitored by satellite telemetry
TLDR
Long-distance movement between the western and eastern Mediterranean basins followed a seasonal pattern and seemed to be triggered by temperature and food availability and in the autumn/winter months turtles moved from west to east in search of warmer waters, and returned to the western basin in spring. Expand
Navigation by green turtles: which strategy do displaced adults use to find Ascension Island?
Sea turtles are known to perform long-distance, oceanic migrations between disparate feeding areas and breeding sites, some of them located on isolated oceanic islands. These migrations demonstrateExpand
Turtles on the edge: movement of loggerhead turtles (Caretta caretta) along oceanic fronts, spanning longline fishing grounds in the central North Pacific, 1997–1998
Nine juvenile loggerhead sea turtles tracked during 1997 and 1998 in the central North Pacific by satellite telemetry all travelled westward, against prevailing currents, along two convergent frontsExpand
The ecology and migrations of sea turtles. 7, The West Caribbean green turtle colony. Bulletin of the AMNH ; v. 162, article 1
TLDR
A unique contribution of the report is an extensive record of remigratory cycle-shifts, and tables showing composition of the nesting colonies of 1962-1972 with respect to past and future remigration-interval The ecology and migrations of sea turtles. Expand
Trans-Pacific migrations of the loggerhead turtle (Caretta caretta) demonstrated with mitochondrial DNA markers.
TLDR
To determine the origin of the Baja California feeding aggregate and North Pacific fishery mortalities, samples from nesting areas and pelagic feeding aggregates were compared with genetic markers derived from mtDNA control region sequences and found that 57 of 60 pelagic samples match haplotypes seen only in Japanese nesting areas, implicating Japan as the primary source of turtles in the North Pacific Current and around Bijuana California. Expand
...
1
2
3
4
5
...