Bald Head Island 2003: Loggerhead Turtles

Marine Turtle Research Group / SEATURTLE.ORG

Dataset credit

Data provider
Marine Turtle Research Group
Originating data center
Satellite Tracking and Analysis Tool (STAT)
Project partner
The project is a collaboration among the Bald Head Island Conservancy and the Marine Turtle Research Group (Annette Broderick, Brendan Godley, Lucy Hawkes) and the North Carolina Wildlife Resources Commission (Matthew Godfrey).
Project sponsor or sponsor description
This work was possible as a result of the financial and inkind support of the Anderson Family, Crumpler Family, Humphries Family, Natural Environment Research Council (NERC), Newport Aquarium, PADI Project Aware, Progress Energy, Ann Pickering, and Juanita Roushdy.


Primary contact Brendan Godley Marine Turtle Research Group
Data entry Michael Coyne



This project aims to find out more about the at-sea behaviour of loggerhead sea turtles following nesting on the beaches of Bald Head Island, North Carolina. We deployed 4 satellite transmitters or Platform Terminal Transmitters (PTT?s) on loggerhead sea turtles in July 2003. This has allowed us to track the long distance movements of these turtles and has given insights into migratory and foraging behaviour.



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 turtles2,120
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2003-07-03
Date, End2005-04-16
Temporal prec.111111
Latitude33.14 - 39.09
Longitude-78.22 - -74.52
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 369)
Traveled (km)19,192
Travel hours43,099
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