AICM satellite tracked loggerhead sea turtles from Mozambique 2012 under SWIOFP

Associação para Investigação Costeira e Marinha

Dataset credit

Associação para Investigação Costeira e Marinha
Institut Français pour L'Exploitation de la Mer


Primary contact Eduardo Videira Associação para Investigação Costeira e Marinha
Secondary contact Mayeul Dalleau CEDTM
Secondary contact Jérôme Bourjea IFREMER
Secondary contact Marcos Pereira Centro Terra Viva - Estudos e Advocacia Ambiental
Data entry Ei Fujioka Duke University


Videira, E., M. Dalleau, J. Bourjea and M. Pereira. 2015. AICM satellite tracked loggerhead sea turtles from Mozambique 2012 under SWIOFP. Data downloaded from OBIS-SEAMAP ( on yyyy-mm-dd.


As part of Component 5 of the South West Indian Ocean Fisheries Project (SWIOFP;, three Loggerhead turtles (named “Lurdes”, “Esperança” and “Mingas”) nesting at the Ponta do Ouro Partial Marine Reserve (POPMR) were satellite tagged (Telonics Argos Marine Transmitters TAM-2639).The loggerhead turtles had contrasting migratory routes: Lurdes immediately initiated a near-shore northbound migration, travelling approximately 634 km (monitored distance) during the 15-day monitoring period and probably the turtle was poached, as the last signal from the tag was sent from 2 km inland next to a hut, closed to Baía dos Cocos in Inhambane Province, Mozambique. Mingas was monitored for 73 days and similarly traveled along the coast, all the way to Mozambique Island and across the Mozambique Channel to the NE coast of Madagascar, traversing 3,270 km (ca 2,025 km straight distance).Finally, Esperança was tracked for 2,608 km during 187 days. This turtle travelled along the coast approximately 250 km north (straight distance) of the nesting beach and reached, what is believed to be her feeding grounds on the Mozambique coast between Macaneta and Xai-Xai. This results shows that despite being protected nationally and internationally, poaching is still a serious threat to the conservation of marine turtles in Mozambique (and in the region), which warrants further efforts for their protection.


The purpose of satellite tagging was to analyse loggerhead post-nesting migration, potential feeding grounds as well as population overlap in the Indian Ocean.

Supplemental 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.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)Description
oidUnique ID number (generated by OBIS-SEAMAP)
latitudeLatitude in decimal degrees
longitudeLongitude in decimal degrees
tag_idTag ID
obs_datetimeDate and time of observation in local time calculated by OBIS-SEAMAP
datetime_utcDate and time of observation in UTC
lcLocation class
time_zoneTime zone of the obs_time values (always UTC)
obs_countNumber of animals (always 1)
age_classAge (always Adult)
sp_tsnTaxonomic Serial Number added by OBIS-SEAMAP
sp_obsSpecies name recorded
providerData provider
ownerData owner
tagging_latLatitude of tagging location
tagging_lonLongitude of tagging location
geomGeometry field added by OBIS-SEAMAP
Marine mammals0
Sea turtles1,259
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2012-01-27
Date, End2012-08-05
Temporal prec.111111
Latitude-26.93 - -14.44
Longitude32.74 - 47.48
Coord. prec.5 decimal digits
Data typeTelemetry location
TracklinesYES (ID: 1119)
Traveled (km)5,262
Travel hours6,655
Contr. throughSEAMAP_TO_SWOT
Sharing policy CC-BY (All)
Shared with SWOT
GBIF (via DOI)*
* Aggregated summary
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics