The relationship between loggerhead turtle (Caretta caretta) movement patterns and Mediterranean currents

  title={The relationship between loggerhead turtle (Caretta caretta) movement patterns and Mediterranean currents},
  author={Flegra Bentivegna and Flora Valentino and Pierpaolo Falco and Enrico Zambianchi and Sandra Hochscheid},
  journal={Marine Biology},
Previous studies have shown that loggerhead sea turtles (Caretta caretta), monitored by satellite telemetry, complete long-distance migration between the western and eastern Mediterranean basins following a seasonal pattern. This study investigated if these migration routes may be influenced by surface currents by superimposing the tracks of three loggerhead turtles (curved carapace length >55 cm), migrating from the western to the eastern Mediterranean basin, on Lagrangian data of current… 

InXuence of oceanic factors on long-distance movements of loggerhead sea turtles displaced in the southwest Indian Ocean

The routes of Wve satellite-tracked loggerhead turtles (Caretta caretta), subjected to an experimental translocation away from their usual migratory routes, have been analysed in relation to the

Influence of oceanic factors on long-distance movements of loggerhead sea turtles displaced in the southwest Indian Ocean

A comparison between turtle ground speeds with that of drifters shows that in several instances, the turtles did not drift passively with the currents but contributed actively to the overall movement.

Movement patterns of marine turtles in the Mediterranean Sea: a review

The current information on the distribution and movement patterns of the two species breeding in the Mediterranean, the loggerhead and the green turtle, is reviewed, focusing mainly on the 195 published routes of satellite-tracked turtles.

Movements of loggerhead sea turtles (Caretta caretta) in the Gulf of California: integrating satellite telemetry and remotely sensed environmental variables

Abstract The loggerhead turtle (Caretta caretta) is a circumglobal species and is listed as vulnerable globally. The North Pacific population nests in Japan and migrates to the Central North Pacific

Seasonal Distribution and Behavior of Loggerhead Sea Turtles in the North Pacific : statistical analysis in relation to environmental oceanographic parameters

Loggerhead sea turtles Caretta caretta nesting off coasts of Japan are known to travel an immense distance throughout their life, however much of their behavior in the open ocean is still not clear.

Post-nesting migrations of loggerhead sea turtles in the Gulf of Mexico: dispersal in highly dynamic conditions

This study highlights the primary importance the Western Florida Shelf in the management of the Florida Nesting Subpopulation, as well as the need of multi-national effort to promote the conservation of the loggerhead turtle in the Western Atlantic.

Post-capture movements of loggerhead turtles in the southeastern Pacific Ocean assessed by satellite tracking

The post-capture movements made by loggerhead sea turtles Caretta caretta in the southeastern Pacific Ocean were monitored from 2003 to 2007. Fourteen loggerhead turtles were fit- ted with satellite

Modeling loggerhead turtle movement in the Mediterranean: importance of body size and oceanography.

It is suggested that directed movements toward patchy ephemeral resources may be a general property of larger juvenile loggerheads in different populations, and size-based variation in loggerhead distribution and documented use of the western Mediterranean Sea by turtles larger than previously thought to occur there are discovered.

High-use areas, seasonal movements and dive patterns of juvenile loggerhead sea turtles in the Southwestern Atlantic Ocean

Characterizing the behaviors of sea turtles and identifying high-use areas as they vary in time and space is important for conservation planning, particularly when turtles overlap with fisheries that

Fine-scale distribution of juvenile Atlantic and Mediterranean loggerhead turtles (Caretta caretta) in the Mediterranean Sea

Overall, the distribution of juveniles may be related to surface circulation patterns in the Mediterranean and suggests that fisheries might have differential effects on each population depending on the overlap degree between foraging and fishing grounds.



Intra-Mediterranean migrations of loggerhead sea turtles (Carettacaretta) monitored by satellite telemetry

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.


It is concluded that loggerhead turtles are capable of transpacific migrations and it is proposed that the band of water between 25o and 30oN, the Subtropical Frontal Zone, may be an important transpacIFIC migratory corridor.

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 fronts

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

Major oceanographic processes (such as main currents and eddies) have been recently shown to have a remarkable influence on leatherback movements, making it questionable whether these journeys are to be considered migrations or, rather, prolonged stays in vast feeding areas.

The navigational feats of green sea turtles migrating from Ascension Island investigated by satellite telemetry

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.

Pinpointing 'Isla Meta': the case of sea turtles and albatrosses

  • PapiLuschi
  • Environmental Science
    The Journal of experimental biology
  • 1996
The reviews of data obtained by tracking migration and feeding routes show that both sea turtles and albatrosses are able to pinpoint small, isolated targets by following straight courses, to continue on a bearing at night even when the moon is not visible, and to compensate for wind or current drift.

Dive-depth distribution of loggerhead (Caretta caretta) and olive ridley (Lepidochelys olivacea) sea turtles in the central North Pacific: Might deep longline sets catch fewer turtles?

The Hawaii-based longline fishery operHistorically, the Hawaii longline ates over a large area in the central fishery has set longlines considerably North Pacific, from the equator to latshallower

First records of dive durations for a hibernating sea turtle

New satellite relay data loggers are used to obtain the first records of up to 7 h long dives of a loggerhead turtle (Caretta caretta) overwintering in Greek waters, suggesting that the common belief that sea turtles hibernate underwater, as some freshwater turtles do, is incorrect.

Estimating the age of juvenile loggerhead sea turtles in the North Atlantic

Their trans-Atlantic drift time was estimated using data from satellite-tracked buoys and from a mathematical model and, hence, it was estimated that the modal age of these juvenile turtles was between 1.80 and 3.75 years.