Brazil Trawl-Caught Turtles
Brazil Trawl caught turtles

Dataset credit

Data provider
Fisheries Bycatch Research Group
Originating data center
Satellite Tracking and Analysis Tool (STAT)

Contacts

RoleNameOrganization 
Primary contact D. Monteiro Fisheries Bycatch Research Group
Data entry Michael Coyne seaturtle.org

Citation

Abstract

The continental shelf of Southern Brazil is an important feeding ground for loggerhead sea turtles and for fishing activities. This overlap leads to a high bycatch and mortality of this endangered sea turtle. The aim of this study, with the use of satellite telemetry, are to: i) determine the spatial and temporal patterns of sea turtles distribution in the area; ii) identify preferred areas of use by immature individuals on the continental shelf; and iii) determine the influence of environmental variables such as sea surface temperature and depth on the species distribution.

Purpose

N/A

Supplemental information

Visit STAT's project page for additional information.

References

Attributes

Overview

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
sensorsSensors
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)
OBIS-SEAMAP ID951
Seabirds0
Marine mammals0
Sea turtles13,634
Rays and sharks0
Other species0
Non spatial0
Non species0
Total13,634
Date, Begin2013-03-22
Date, End2016-03-13
Temporal prec.111111
Latitude-42.37 - -26.06
Longitude-54.58 - -42.81
Coord. prec.3 decimal digits
PlatformTag
Data typeTelemetry location
TracklinesYES (ID: 967)
Contr. throughSatellite Tracking and Analysis Tool
Registered2013-04-16
Updated2017-09-01
StatusPublished
Sharing policy Permission required
Also availalbe from None
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics
1