Chennai India, olive ridley tracking

Supraja Dharini

Dataset credit

Data provider
Tree Foundation
Originating data center
Satellite Tracking and Analysis Tool (STAT)
Project partner
TREE Foundation
Wildlife Wing of the Forest Department
Department of Fisheries, Tamil Nadu
Mote Marine Laboratory, Sarasota Florida, USA
Marinelife Alliance,Bangladesh

Project sponsor or sponsor description
Whitley Fund for Nature, UK
TREE Foundation
Roots and Shoots, India


Primary contact Supraja Tucker Tree Foundation
Data entry Michael Coyne



The Olive Ridley turtle has a unique gene pool different from those sea turtles which nest along the Orissa coast, but little is known about this population. Thus we lack the ability to mitigate the effects of fisheries and other potential threats to this globally threatened species. Despite this, the political will and necessary infrastructure to protect Olive Ridleys is just picking up in India, and local attitudes towards sea turtles is just beginning to change. Unfortunately, the resources available to protect Olive Ridleys are extremely limited. The TREE Foundation's Olive Ridley Satellite Tagging study provides practical information to guide sea turtle management and serves as a model for other coastal states for leveraging the results of small-scale tracking projects into substantive management results. The first ever satellite telemetry study on this population of Olive Ridleys will deploy 2 satellite telemetry tags on olive ridleys along the Chennai coast, to determine their movements and turtle hotspots in the off shore waters.
The Wildlife Wing of the Forest department and Department of Fisheries will then use the results of this study to inform the mechanized and trawl fishermen of the areas which are feeding grounds and congregations areas of the turtles to in order to request them to keep away from those areas during the turtle nesting season.
Such enforcement can be implemented only through repeated awareness programs for the fishing community and general public. Only then will the adult nesting Olive Ridley as well as the juvenile Green turtle and Hawksbill population feeding in the off shore areas survive.
TREE Foundation was founded on the principles of community involvement and ownership. The success of the programs is largely due to the day-to-day participation of the major stakeholders. Fishers who adapt their practices to sustain marine life are providing livelihoods for the next generation. Students who learn about the importance of marine ecosystems and conservation will grow to teach their children and grandchildren. STPF members are given incentives to become community leaders by training the next group of the Sea Turtle Protection Force. In these ways, we plan to ensure the programs of the TREE Foundation grow along with the communities they serve.
To help ensure the sustainability of the conservation program, we are spearheading the efforts to unify conservation groups around the Bay of Bengal. Over the next five years, sea turtle, marine mammal and ecosystem conservation groups from India, Sri Lanka and Bangladesh will come together under the umbrella group BEACON (Bay Of Bengal Ecologists and Conservationists Network) to provide support, standardize all database formats, share best practices and bring science to the common man, resulting in better law enforcement, protection for sustainable coexistence of man and megafauna and the health of the Bay as a whole.
TREE Foundation was founded on the principles of community involvement and ownership. This is the main basis for sustainability of the program.
STPF members are given incentives to become responsible future community leaders by training the next group of the Sea Turtle Protection Force. In these ways, we plan to ensure the programs of the TREE Foundation grow along with the communities they serve. One of the specific goals of the community based conservation program is to empower the present generation with the will and tools to ensure that sea turtles continue to survive.
Specifically recruiting young fisher children, students from high schools and colleges is to get them involved in a life-long commitment to saving our ecosystem.
For further information about this satellite tracking project



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 turtles1,654
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2010-03-07
Date, End2011-01-03
Temporal prec.111111
Latitude8.24 - 19.20
Longitude72.00 - 92.25
Coord. prec.3 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 577)
Traveled (km)7,682
Travel hours8,428
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