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Keywords: Caretta caretta
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Journal Articles
J Exp Biol (2022) 225 (9): jeb243922.
Published: 5 May 2022
... of this response in aquatic reptiles, including sea turtles, remains under debate. Using the parasympathetic blocker atropine, we evaluated the involvement of the parasympathetic nervous system in heart rate reduction of loggerhead sea turtles ( Caretta caretta ) during voluntary diving in tanks. The heart rate...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (8): jeb200824.
Published: 24 April 2019
... loggerhead sea turtles were not different whether turtles were submerged or out of water. Rather, heart rates changes were driven by turtles' activity level. ECG Caretta caretta Cardiovascular Diving Loggerhead sea turtles can remain submerged at sea for as long as 7 to 8 h ( Hawkes et al...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2018) 221 (1): jeb165225.
Published: 4 January 2018
... energy, thus decreasing the likelihood of survival. In this study hatchlings were run on a treadmill for 200 or 500 m to investigate the physiological impacts of disorientation crawling in loggerhead ( Caretta caretta ) and green ( Chelonia mydas ) sea turtle hatchlings. Oxygen consumption, lactate...
Journal Articles
J Exp Biol (2015) 218 (7): 1044–1050.
Published: 1 April 2015
... an interdisciplinary approach in which we first conducted lab-based experiments to determine how hatchling loggerhead sea turtles ( Caretta caretta ) respond to magnetic fields that exist at five widely separated locations along their migratory route, and then studied the consequences of the observed behavior...
Journal Articles
J Exp Biol (2011) 214 (15): 2504–2508.
Published: 1 August 2011
...Matthew J. Fuxjager; Brian S. Eastwood; Kenneth J. Lohmann SUMMARY Young loggerhead sea turtles ( Caretta caretta ) from the east coast of Florida, USA, undertake a transoceanic migration around the North Atlantic Gyre, the circular current system that flows around the Sargasso Sea. Previous...
Journal Articles
J Exp Biol (2009) 212 (24): 4019–4026.
Published: 15 December 2009
... ability both at the surface and underwater, fine-scale 3-D movements of free-ranging loggerhead turtles Caretta caretta were reconstructed by using multi-sensor data loggers. Video systems (‘Crittercam’) were also used to record the behaviour of the turtles and the visual information surrounding...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2004) 207 (11): 1771–1778.
Published: 1 May 2004
.... * Author for correspondence (e-mail: larisa.avens@noaa.gov ) 17 2 2004 © The Company of Biologists Limited 2004 2004 sea turtle orientation navigation migration map loggerhead green turtle Caretta caretta Chelonia mydas After a period of years spent in the pelagic...
Journal Articles
J Exp Biol (2003) 206 (23): 4317–4325.
Published: 1 December 2003
...Larisa Avens; Kenneth J. Lohmann SUMMARY Although the orientation cues used by hatchling sea turtles have been studied extensively, little is known about the mechanisms of orientation and navigation that guide older turtles. To investigate the orientation cues used by juvenile loggerheads Caretta...
Journal Articles
J Exp Biol (2003) 206 (3): 497–501.
Published: 1 February 2003
...William P. Irwin; Kenneth J. Lohmann SUMMARY Laboratory experiments have indicated that hatchling loggerhead sea turtles( Caretta caretta ) are able to establish and maintain courses using information from the Earth's magnetic field. In previous experiments, turtles were tested in relatively...
Journal Articles
Journal Articles
J Exp Biol (1996) 199 (1): 73–81.
Published: 1 January 1996
...Kenneth J. Lohmann; Catherine M. F. Lohmann ABSTRACT Loggerhead sea turtle hatchlings ( Caretta caretta L.) emerge from underground nests, scramble to the sea and begin a transoceanic migration by swimming away from their natal beach and into the open ocean. Evidence suggests that hatchlings...
Journal Articles
J Exp Biol (1995) 198 (5): 1079–1085.
Published: 1 May 1995
... water. To determine whether loggerhead ( Caretta caretta L.) and green turtle ( Chelonia mydas L.) hatchlings can detect wave direction in this way, we constructed a wave motion simulator to reproduce in air the circular movements that occur beneath small ocean waves. Hatchlings suspended in air...
Journal Articles
J Exp Biol (1994) 194 (1): 23–32.
Published: 1 September 1994
... animal. We studied the magnetic orientation behavior of hatchling loggerhead sea turtles ( Caretta caretta L.) exposed to earth-strength magnetic fields of different inclinations. Hatchlings exposed to the natural field of their natal beach swam eastward, as they normally do during their offshore...
Journal Articles
J Exp Biol (1994) 190 (1): 1–8.
Published: 1 May 1994
...Kenneth J. Lohmann; Catherine M. Fittinghoff Lohmann ABSTRACT During their natal migration, hatchling loggerhead sea turtles ( Caretta caretta L.) establish courses towards the open ocean and maintain them after swimming beyond sight of land. Laboratory experiments have demonstrated that swimming...
Journal Articles
J Exp Biol (1993) 182 (1): 1–10.
Published: 1 September 1993
... of loggerheads is an inclination (axial) compass, functionally similar to that of birds. * To whom reprint requests should be addressed. 10 05 1993 © 1993 by Company of Biologists 1993 magnetic magnetoreception orientation sea turtle Caretta caretta Sea turtle...
Journal Articles
J Exp Biol (1991) 155 (1): 37–49.
Published: 1 January 1991
...Kenneth J. Lohmann ABSTRACT Laboratory experiments were conducted to test the ability of loggerhead sea turtle hatchlings (Caretta caretta L.) to orient using the magnetic field of the earth. Hatchlings were tethered to a rotatable lever-arm apparatus which tracked swimming orientation in complete...