Casey Key Loggerheads 2009
Mote Marine Laboratory

Dataset credit

Data provider
Mote Marine Laboratory
Originating data center
Satellite Tracking and Analysis Tool (STAT)
Project partner
Mote Marine Laboratory is handling the field deployment and satellite tracking while National Marine Fisheries Service is supervising the stable isotope analysis.
Project sponsor or sponsor description
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

Individual support:


Primary contact Tony Tucker Mote Marine Laboratory
Data entry Michael Coyne



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



Supplemental information

Visit STAT's project page for additional information.




Attributes described below represent those in the original dataset provided by the provider.
Only minimum required attributes are visible and downlodable online. Other attributes may be obtained upon provider's permission unless otherwise noted below.

This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

Attributes in dataset provided

Attribute (table column)Description
project_idSTAT Project ID
prognumProgram number
tag_idPTT ID
datetime_utcDate and time in UTC
lcLocation class
iqQuality indicator
latitudeLatitude 1
longitudeLongitude 1
dir1Dir 1
nb_mesNumber of messages received
big_nb_mesdefinition not provided
best_levelBest signal strength in dB
pass_durationPass duration in seconds
nopcNumber Of Plausibility Checks successful (from 0-4)
calcul_freqCalculated frequency
altitudeAltitude used for location calculation
speciesSpecies name
sp_tsnITIS Taxonomic Serial Number
lc_filterParameters to location filtering
speed_filterParameters to speed filtering
distance_filterParameters to distance filtering
topo_filterParameters to topo filtering
time_filterParameters to time filtering
angle_filterParameters to angle filtering
life_stageLife stage of the animal
genderGender of the animal
wetdryWet or dry
wetdry_filterParameters to Wet or dry filterint
obs_datetimeDate and time (local time zone)
timezone_hTime difference from UTC
obs_countAnimal count (always 1)
Marine mammals0
Sea turtles11,373
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2009-05-14
Date, End2010-08-22
Temporal prec.111111
Latitude19.50 - 41.14
Longitude-98.10 - -60.71
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 527)
Contr. throughSatellite Tracking and Analysis Tool
StatusNot published
Sharing policy Permission required
Also availalbe from None
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics