Movement patterns of nesting green turtles in Tanzania

Sea Sense

Dataset credit

Data provider
Sea Sense, Tanzania
Originating data center
Satellite Tracking and Analysis Tool (STAT)


Primary contact Lindsey West Sea Sense
Data entry Michael Coyne



Sea Sense is conducting research into the migratory behaviour of green turtles to better understand their movements and identify important foraging grounds and migratory corridors in the western Indian Ocean region. This kind of information is being used in Tanzania to develop a National Sea Turtle Status Report which will eventually feed into a National Sea Turtle Recovery Plan.

To date, satellite tags have been deployed on nesting green turtles in Mafia Island, Temeke and Pangani which are the three most important green turtle rookeries in Tanzania.



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 turtles4,471
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2013-09-10
Date, End2015-01-16
Temporal prec.111111
Latitude-8.05 - 1.61
Longitude38.94 - 44.62
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 1005)
Traveled (km)8,732
Travel hours10,711
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