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Migratory patterns in hawksbill turtles described by satellite tracking

Authors :
Ohiana Revuelta
Matthew J. Witt
J. M. Blumenthal
M.R. Fish
Juan Antonio Raga
Brendan J. Godley
Annette C. Broderick
Jesús Tomás
Lucy A. Hawkes
Yolanda M. León
Source :
Marine Ecology Progress Series. 461:223-232
Publication Year :
2012
Publisher :
Inter-Research Science Center, 2012.

Abstract

The advent of telemetry has improved knowledge of the spatio-temporal distribution of marine species of conservation concern. Among the sea turtles, the movements of the hawksbill turtle Eretmochelys imbricata are among the least well described. We tracked 10 adult female hawksbill turtles by satellite after nesting in the Dominican Republic (DR) and describe a dichotomy in patterns of movement: some (n = 2) turtles remained in the DR, while others migrated to waters off Honduras and Nicaragua (n = 5) and the Bahamas (n = 1). Transmitters on 2 turtles failed during migration, before they reached their final foraging grounds. We present results from long tracking durations for 3 turtles, including 3 entire remigration intervals, high- lighting foraging ground and nest-site fidelity. Threats to hawksbill turtles are not well docu- mented for Nicaragua or neighbouring Honduras and represent a major information gap. We sug- gest that directing conservation efforts to regionally important foraging areas, such as those in Nicaragua, and strengthening national conservation in each nation with significant hawksbill nesting offers a clear way forward for the conservation of hawksbill turtles in the region.

Details

ISSN :
16161599 and 01718630
Volume :
461
Database :
OpenAIRE
Journal :
Marine Ecology Progress Series
Accession number :
edsair.doi...........34f37aa018c500747ed2756918d8c875