Western Australian Loggerheads - Gnaraloo Bay and Gnaraloo Cape Farquhar 2015-2018

Data provider
Aubrey Strydom
Originating data center
Satellite Tracking and Analysis Tool (STAT)
Project partner
Gnaraloo Station Trust via the Gnaraloo Turtle Conservation Program 2008/18 and the Gnaraloo Feral Animal Control Program (GFACP)2008/15: Monitoring of the Gnaraloo sea turtle rookeries and feral animal control to protect the turtle rookeries: www.gnaraloo.org and Gnaraloo Turtle Conservation Program on Facebook.

Animal Pest Management Services, feral animal control at Gnaraloo for the GFACP 2008/15 to protect the turtle rookeries: www.animalpest.com.au

The Australian Government provided part of the cost of the Gnaraloo satellite turtle tracking project 2015/16 for the 10 trackers deployed that season through a Caring for Our Country grant: https://fieldcapture.ala.org.au/project/index/bcb6f263-8527-4093-ae59-7d80f6b79990#details

Brains Design: Creators of the Turtle Tracking App for smartphones: www.brainsdesign.com

Aub Strydom provided the two trackers deployed in the 2017-18 season.

Western Australian Department of Parks and Wildlife: Permits, advice, training, turtle tags, the turtle restraining box.

Gnaraloo Loggerhead Turtle Satellite Tagging

Gnaraloo Station is a working pastoral station and wilderness tourism business located in a remote part of mainland Western Australia approximately 1,100 km north of Perth. The station abuts 65 km of pristine coastline at the southern end of the Ningaloo Reef and Ningaloo Marine Park.
The beaches at Gnaraloo Station provide nesting habitat for predominantly loggerhead (Caretta caretta), some green (Chelonia mydas) and possibly hawksbill (Eretmochelys imbricata) turtles generally from November to March each year. The Gnaraloo Turtle Conservation Program (GTCP) (www.gnaraloo.com/conservation www.gnaraloo.org Facebook) has conducted scientific monitoring of turtle activity at rookeries on the Gnaraloo coastline since 2008.
The nesting range of loggerhead turtles in Western Australia extends from Dirk Hartog Island in the south to the Muiron Islands in the north, with important rookeries in-between including Gnaraloo Bay, Gnaraloo Cape Farquhar, Janes Bay and Bungelup in the Ningaloo Marine Park.
With loggerhead turtles also being satellite tagged at Dirk Hartog Island and South Muiron Island during the season 2015/16 (1 July 2015 – 30 June 2016), the satellite tagging at Gnaraloo by the GTCP forms part of a broader co-ordinated program to understand inter-nesting movements, post-nesting migrations, and identify foraging grounds and potential threats across the turtles' entire nesting range in Western Australia.

N/A

Visit STAT's project page for additional information.

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