Post-nesting migration of loggerhead turtles around Japan 2005
Hideo Hatase

Dataset credit

Data provider
Ocean Research Institute (Hatase)
Originating data center
Satellite Tracking and Analysis Tool (STAT)
Project partner
Yakushima Sea Turtle Research Group
Project sponsor or sponsor description
Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists and the Sumitomo Foundation


Primary contact Hideo Hatase Ocean Research Institute (Hatase)
Data entry Michael Coyne


Hatase H. 2017. Post-nesting migration of loggerhead turtles around Japan 2005. Data downloaded from OBIS-SEAMAP ( on yyyy-mm-dd and originated from Satellite Tracking and Analysis Tool (STAT;


The aim of this project is to reveal foraging and diving behaviours of adult female loggerhead turtles in oceanic and neritic habitats.

Source: Hatase H, Omuta K, Tsukamoto K (2007) Bottom or midwater: alternative foraging behaviours in adult female loggerhead sea turtles. J Zool 273:46–55



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 turtles154
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2005-07-22
Date, End2006-02-03
Temporal prec.111111
Latitude24.07 - 37.80
Longitude127.49 - 162.03
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 1547)
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