Ghana Olive Ridley Project

Dataset credit

Data provider
SEATURTLE.ORG Animal Tracking Program
Originating data center
Satellite Tracking and Analysis Tool (STAT)
Project partner
This project is a partnership between SEATURTLE.ORG, Florida Gulf Coast University, the Hlamhi Association for Turtle Conservation and Hope (HATCH), the University of Ghana and the Ghana Wildlife Division, Forestry Commission.
Project sponsor or sponsor description
This project is sponsored in part by the Disney Worldwide Conservations Fund, SEATURTLE.ORG and the Hlamhi Association for Turtle Conservation and Hope (HATCH).


Primary contact Michael Coyne


Coyne M. 2017. Ghana Olive Ridley Project. Data downloaded from OBIS-SEAMAP ( on yyyy-mm-dd and originated from Satellite Tracking and Analysis Tool (STAT;


Historical records indicate that green, olive ridley, hawksbill, and loggerhead sea turtles once utilized Ghana’s coastal waters as foraging grounds. Records also indicate leatherback, green, olive ridley, hawksbill, and loggerhead also utilized Ghana’s shore as nesting habitat. There has not been a confirmed loggerhead or hawksbill nest in Ghana for 25 years indicating these two species have most likely been extirpated from the region. Currently, the leatherback, olive ridley, and green sea turtles are the only remaining species nesting in Ghana. Sea turtles in this region are exposed to a maze of fishing vessels and nets that must be carefully avoided to reach the nesting beach. Each year large sea turtle stranding events are documented during time periods of off-shore and near-shore fishing. Illegal commercial fishing activity occurs regularly in shallow off-shore waters, whereas commercial and subsidence fishing take place near-shore and off the beach. Understanding the temporal and spatial movement patterns of olive ridleys would provide information on the interaction of sea turtles and fisheries in Ghana's waters.

With funding from the Disney Worldwide Conservation Fund, we are gathering knowledge and creating educational programs necessary to implementing a conservation program that is socially and economically self-sustaining over the long term. The proposed research will answer key questions about the ecology of olive ridley sea turtles that will allow limited existing resources to be used most effectively into the future, and will incorporate educational programs to reverse the social perception of sea turtles so that their preservation is part of the cultural norm.



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 turtles281
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2009-12-23
Date, End2010-01-23
Temporal prec.111111
Latitude-0.95 - 6.02
Longitude0.20 - 3.63
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 1460)
Contr. throughSatellite Tracking and Analysis Tool
Sharing policy Permission required
Also availalbe from None
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics