Tortugas Marinas del Golfo de California

Alan Zavala

Dataset credit

Data provider
Tracking Loggerheads in the Gulf of California
Originating data center
Satellite Tracking and Analysis Tool (STAT)


Primary contact Alan Zavala Tracking Sea Turtles in the Riviera Nayarit, Mexico.
Data entry Michael Coyne



English translation follows Spanish text.

A nueve años de su creación, el Programa de Protección y Conservación de Vida Silvestre del CIIDIR Unidad Sinaloa del Instituto Politécnico Nacional, ha desarrollado una serie de proyectos de investigación principalmente para la conservación de las tortugas marinas en el noroeste de México, esto ha sido posible gracias al apoyo institucional y a la colaboración con otras instituciones y organizaciones de la sociedad civil nacionales e internacionales. El proyecto de telemetría satelital Tortugas Amarillas del Golfo de California surge mediante la colaboración entre el IPN, Red Tortuguera A.C., Grupo Tortuguero de las Californias A.C., el Smithsonian Mason School of Conservation, Instituto de Ciencias del Mar y Limnología/UNAM y la colaboración de pescadores de la comunidad de La Reforma, Angostura, quienes voluntariamente reportaron la captura incidental de tortugas amarillas (Caretta caretta), las cuales se convirtieron en los primeros registros formales de esta especie en la zona sur del Golfo de California. Con este proyecto se pretende conocer por primera vez, los movimientos de esta especie dentro del Golfo de California, lo que aportara información importante para las estrategias de conservación de la especie.


Nine years after its creation, the Wildlife Protection and Conservation Program at the CIIDIR Sinaloa campus of Instituto Politécnico Nacional (National Polytechnic Institute), has developed a series of research projects focusing mainly on sea turtle conservation in northwest Mexico. This has been made possible through institutional support and the collaboration of national and international institutions and Non-Governmental Organizations. The Loggerhead turtles of the Gulf of California satellite telemetry project has been made possible through the support and collaboration between the Instituto Politécnico Nacional, Red Tortuguera A.C., Grupo Tortuguero de las Californias A.C., Smithsonian Mason School of Conservation, Instituto de Ciencias del Mar y Limnología/UNAM and the local fishing communities of La Reforma and Angostura, who voluntarily reported bycatch of loggerhead turtles (Caretta caretta). These reports became the first formal records of this species in the southern Gulf of California. This project aims to determine for the first time the movements of loggerheads in the Gulf of California, which will supply us with important information for the implementation of conservation strategies for the species.



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 turtles2,354
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2014-05-23
Date, End2017-07-19
Temporal prec.111111
Latitude8.87 - 31.26
Longitude-114.35 - -92.23
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 1177)
Traveled (km)11,712
Travel hours10,786
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