IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Influence of oceanic factors on long-distance movements of loggerhead sea turtles displaced in the southwest Indian Ocean
Mencacci, R.; De Bernardi, E.; Sale, A.; Lutjeharms, J.R.E.; Luschi, P. (2010). Influence of oceanic factors on long-distance movements of loggerhead sea turtles displaced in the southwest Indian Ocean. Mar. Biol. (Berl.) 157(2): 339-349. hdl.handle.net/10.1007/s00227-009-1321-z
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162, more
Peer reviewed article  

Available in  Authors 

Keyword
    Marine

Authors  Top 
  • Mencacci, R.
  • De Bernardi, E.
  • Sale, A.
  • Lutjeharms, J.R.E.
  • Luschi, P.

Abstract
    The routes of five satellite-tracked loggerhead turtles (Caretta caretta), subjected to an experimental translocation away from their usual migratory routes, have been analysed in relation to the concurrent oceanographic conditions. Remote sensing data on sea surface temperature and height anomalies, as well as trajectories of surface drifters were used, to get simultaneous information on the currents encountered by the turtles during their long-range oceanic movements. Turtles mostly turned out to move in the same direction as the main currents, and their routes were often influenced by circulation features they encountered. 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. Two turtles embarked on an oceanic crossing, probably induced by seasonal changes in surface temperatures, a crossing that was largely determined by the main currents existing in the area.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors