From Australian Oceans Data Network
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Satellite tracking of female olive ridley sea turtles (Lepidochelys olivacea) nesting in the Wessel Islands, Northern Territory

Created 13/03/2025

Updated 13/03/2025

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The movements, diving behaviour and thermal environment occupied by female olive ridley turtles Lepidochelys olivacea in northern Australia were determined through satellite telemetry, during the post-nesting migration. Satellite-relayed data loggers (SRDLs) were attached to the carapaces of 4 female olive ridley turtles nesting in the Wessel Islands of Arnhem Land in the Northern Territory of Australia (Graham Island: 11° 45’ S, 135° 57’ E and Wunpirri Island: 11° 36’ S, 136° 05’ E). This metadata record, represents several different datasets listed hereafter, which can all be accessed through a multi-WFS service. CTD - parameters measured by the instruments include time, temperature, and depth. The data represented by this record are presented in delayed mode. Diving - parameters measured by the instruments include start and end time and longitude/latitude of each individual dive, post-dive surface duration, dive duration, maximum dive depth, intermediate dive depths and times. The diving data represented by this record are presented in delayed mode. Haulout - a haulout begins when the SRDL has been continuously dry for a specified length of time (usually 10 minutes). It ends when continuously wet for another interval (usually 40 seconds). Haulout data parameters measured by the instruments include haulout start and end dates and longitude/latitude, and haulout number. The haulout data represented by this record are presented in delayed mode. Argos locations - parameters measured by the instruments include time, longitude, latitude, location quality, along with other diagnostic information provided by Argos (http://www.argos-system.org/). The Argos data represented by this record are presented in delayed mode. Summary Statistics - as well as sending records of individual events such as dives and haulouts, the SRDL also calculates summary statistics of those events over a specified time period (usually 3, 4 or 6 hours). Summary statistics computed by the instruments include the proportion of time spent diving, at the surface and hauled-out, the number of dives, and the average, standard deviation and maximum dive duration and dive depth during each summary period. These statistics are based on all the data recorded by the SRDL and so are not prone to distortion by variations in the efficiency of transmission via Argos. The summary data represented by this record are presented in delayed mode. Note that it is impossible to subset this particular dataset using a bounding box as there is no latitude, longitude coordinates associated with each entry.

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Additional Info

Field Value
Title Satellite tracking of female olive ridley sea turtles (Lepidochelys olivacea) nesting in the Wessel Islands, Northern Territory
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/86853eb4-3787-4537-b1cd-cd89bafe9841
Contact Point
CSIRO Oceans & Atmosphere
Clive.McMahon@utas.edu.au
Reference Period 29/08/2018
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Satellite tracking of female olive ridley sea turtles (Lepidochelys olivacea) nesting in the Wessel Islands, Northern Territory". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/satellite-tracking-of-female-olive-ridley-sea-turtles-lepidochelys-olivacea-nesting-in-the-wess

Original dataset
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No duplicate datasets found.