Brazil Trawl-Caught Turtles
Brazil Trawl caught turtles
Dataset credit
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Contacts
Role | Name | Organization | |
Primary contact |
D. Monteiro |
Fisheries Bycatch Research Group |
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Data entry |
Michael Coyne |
seaturtle.org |
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Citation
Monteiro D. 2024. Brazil Trawl-Caught Turtles. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/951) on yyyy-mm-dd and originated from Satellite Tracking and Analysis Tool (STAT; http://www.seaturtle.org/tracking/index.shtml?project_id=843). Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.
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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.
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Purpose
N/A
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Supplemental information
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References
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Attributes
Overview
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 |
prognum | Program number |
tag_id | PTT ID |
lc | Location class |
iq | Quality indicator |
dir1 | Dir 1 |
nb_mes | Number of messages received |
big_nb_mes | definition not provided |
best_level | Best signal strength in dB |
pass_duration | Pass duration in seconds |
nopc | Number Of Plausibility Checks successful (from 0-4) |
calcul_freq | Calculated frequency |
altitude | Altitude used for location calculation |
sensors | Sensors |
species | Species name |
project_id | STAT Project ID |
lc_filter | Parameters to location filtering |
speed_filter | Parameters to speed filtering |
distance_filter | Parameters to distance filtering |
topo_filter | Parameters to topo filtering |
time_filter | Parameters to time filtering |
angle_filter | Parameters to angle filtering |
life_stage | Life stage of the animal |
gender | Gender of the animal |
wetdry | Wet or dry |
wetdry_filter | Parameters to Wet or dry filterint |
obs_datetime | Date and time (local time zone) |
timezone_h | Time difference from UTC |
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OBIS-SEAMAP ID | 951 |
Seabirds | 0 |
Marine mammals | 0 |
Sea turtles | 13,625 |
Rays and sharks | 0 |
Other species | 0 |
Non spatial | 0 |
Non species | 0 |
Total | 13,625 |
Date, Begin | 2013-03-22 |
Date, End | 2016-03-13 |
Temporal prec. | 111111 |
Latitude | -42.37 - -26.06 |
Longitude | -54.58 - -43.04 |
Coord. prec. | 3 decimal digits |
Platform | Tag |
Data type | Telemetry location |
Tracklines | YES (ID: 967) |
if ($show_effort_stat) {
?>
Traveled (km) | 104,445 |
Travel hours | 85,055 |
}
if ($sources != null and $sources != "" and $dataset_id != 427) { // Do not show ESAS
?>
Contr. through | Satellite Tracking and Analysis Tool |
}
?>
Registered | 2013-04-16 |
Updated | 2024-02-29 |
Status | Published |
Sharing policy |
Permission required |
Shared with |
SWOT OBIS*
GBIF (via DOI)* * Aggregated summary |
See metadata in static HTML |
See metadata in FGDC XML |
See download history / statistics |
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