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Casey Key Loggerheads 2009

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Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Notes: Only data aggregated per 1-degree cell are available through OBIS. For access to additional data, the provider needs to be contacted.

Data of studies on loggerhead turtle populations in the Gulf of Mexico using different methodologies. more

A focus of this year's satellite tracking project is to compare stable isotope results with telemetry results to determine the efficacy of using stable isotopes to elucidate post-nesting migratory destinations of sea turtles. Stable isotope analysis of skin and eggshell tissue (which reflect foraging areas) will be compared with the oceanographic regions visited during satellite tracking. Stable isotope values that are consistently different for females in oceanic vs. neritic habitats lend credence to their use to infer post-nesting migratory destinations. A lack of matching between isotope values (pre-nesting habitat) and satellite tracks (post-nesting habitats) would suggest a) that loggerheads do not exhibit philopatry to foraging regions, or b) that loggerhead habitat use is too flexible to use isotopes in inferring habitat use. A consistent isotope-telemetry match among individuals would suggest that stable isotopes can be used in lieu of the more expensive satellite telemetry approach to potentially infer foraging grounds. A second focus is to track female turtles that are potentially bycatch in the Gulf of Mexico Reef Fish Fishery bottom longline fishery. More information on this issue is summarized at Mote Marine Laboratory is handling the field deployment and satellite tracking while National Marine Fisheries Service is supervising the stable isotope analysis. Disney Worldwide Conservation Fund supported this project though a grant to the Longlines and Loggerheads project ( This project Stable Isotope Profiles of Sea Turtles from the Southwest Rookery, was funded in part by a grant awarded from the Sea Turtle Grants Program proposal 09-001R. The Sea Turtle Grants Program is funded from proceeds from the sale of the Florida Sea Turtle License Plate. Learn more at School sponsors: Wooster School. Corporate and non-profit sponsors: Morrison Family Foundation.

Biology > Reptiles
Marine, A, Atlantic, ASW, Caribbean, ASW, Mexico Gulf, Caretta caretta, Chelonia mydas

Geographical coverage
A, Atlantic [Marine Regions]
ASW, Caribbean [Marine Regions]
ASW, Mexico Gulf [Marine Regions]

Temporal coverage
14 May 2009 - 23 August 2010

Taxonomic coverage
Caretta caretta (Linnaeus, 1758) [WoRMS]
Chelonia mydas (Linnaeus, 1758) [WoRMS]

Mote Marine Laboratory, moredata owner

Related datasets
Published in:
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, more


Dataset information:

Dataset status: Completed
Data type: Data
Data origin: Research
Metadatarecord created: 2012-11-27
Information last updated: 2012-11-27
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