Study of the Biology of Sea Turtles in Brazil through Satellite Telemetry

Projeto TAMAR

Dataset credit

Data provider
Projeto Tamar-Ibama
Originating data center
Satellite Tracking and Analysis Tool (STAT)
Project sponsor or sponsor description
This work was possible as a result of the financial support of Petrobras/Cenpes (Petrobras Research Center).


Primary contact Projeto Tamar-Ibama
Data entry Michael Coyne



The project entitled Study of the Biology of Sea Turtles in Brazil of through Satellite Telemetry is part of the larger research program entitled Priority Research Studies on the Biology of the Sea Turtles, developed by Project TAMAR-IBAMA with the support of the Petrobras/Cenpes (Petrobras Research Center). The objective of this project is to use satellite telemetry to study and analyze the at-sea movements of female turtles, both during and following the nesting season, for the most threatened species that occur along the Brazilian coast (Caretta caretta, Dermochelys coriacea, Eretmochelys imbricata and Lepdochelys olivacea). The project will involve the deployment of 40 satellite tags: 15 on hawksbill turtles, 5 on leatherback turtles, 10 on loggerhead turtles and 10 on olive ridley turtles. The project officially began on February 02nd, 2005 when 15 satellite tags (KiwiSat 101 from Sirtrack Limited) were attached to the carapaces of hawksbill turtles that had just finished nesting on beaches along the northern coast of Bahia, Brazil. In continuity to this Study, 03 transmitters KiwiSat 101(with capacity to work for up to 450 days) were installed in females of the species Dermochelys coriacea (leatherback sea turtle) in Espirito Santo, only reproductive area of this species in the Brazilian coast. The last species that received transmitters was the Caretta caretta (loggerhead sea turtle), in the coast of Bahia, and Lepidochelys olivacea (olive ridley sea turtle), in the north coast of Sergipe, in the February of 2006. For further information on Projeto Tamar-Ibama history, sea turtle biology and the Satellite Telemetry Program, with updated maps on recent and past studies, visit our webpage,, and learn more about the conservation of sea turtles in Brazil.



Supplemental information

Visit STAT's project page for additional information.




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

Attributes in dataset

Attribute (table column)Description
prognumProgram number
tag_idPTT ID
lcLocation class
iqQuality indicator
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
project_idSTAT Project ID
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
Marine mammals0
Sea turtles17,357
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2005-02-05
Date, End2009-09-11
Temporal prec.111111
Latitude-47.83 - 9.06
Longitude-112.99 - 9.90
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 988)
Traveled (km)1,632,616
Travel hours376,317
Contr. throughSatellite Tracking and Analysis Tool
Sharing policy Permission required
Shared with SWOT
GBIF (via DOI)*
* Aggregated summary
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics