Gabon 2015-2016: Hawksbills
Wildlife Conservation Society

Dataset credit

Data provider
Marine Turtle Research Group
Originating data center
Satellite Tracking and Analysis Tool (STAT)


Primary contact Catherine McClellan Marine Turtle Research Group
Data entry Michael Coyne


McClellan C. 2018. Gabon 2015-2016: Hawksbills. Data downloaded from OBIS-SEAMAP ( on yyyy-mm-dd and originated from Satellite Tracking and Analysis Tool (STAT;


La baie de Corisco est une zone d'alimentation importante pour les tortues imbriquées (Eretmochelys imbricata), classés comme en danger critique à l'échelle mondiale. Après un certain nombre de «années perdues» en haute mer, les juvéniles recrutent pour les eaux littorales, loin de leurs plages natales. Zones rocheuses peu profondes convenables pour ce stade de développement se produisent uniquement dans la baie de Corisco, qui couvre les frontières du Gabon et de la Guinée équatoriale. Une meilleure compréhension de l'utilisation de l'habitat des tortues marines dans cette région est fondamental pour informer tous les efforts de conservation ou atténuation de l'impact ultérieures. En Novembre 2015, nous avons commencé baliser un petit échantillon de tortues imbriquées pour obtenir le premier oeil à leur utilisation de l'habitat marin de cette région.


Corisco Bay hosts important foraging habitat for hawksbill turtles (Eretmochelys imbricata), classified as critically endangered globally. After a number of “lost years” in the high seas, juveniles recruit to nearshore waters, far from their natal beaches. Suitable shallow rocky areas for this developmental stage uniquely occur in Corisco Bay, which spans the borders of Gabon and Equatorial Guinea. A better understanding of habitat use of sea turtles in this region is fundamental to inform all subsequent conservation or impact mitigation efforts. In November 2015, we began satellite tagging a small sample of hawksbill turtles to get the first ever look at their use of the marine habitat of this region.



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 turtles3,071
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2015-11-09
Date, End2016-05-21
Temporal prec.111111
Latitude0.41 - 0.88
Longitude9.15 - 9.56
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 1843)
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