South Australia's Sea Lions as Ocean Observers

Data provider
Fur seal, pelagic shark and seabird tracking
Originating data center
Satellite Tracking and Analysis Tool (STAT)

Over the next 3 summers, up to 40 Australian sea lion adult males will carry state-of-the-art satellite transmitters as they traverse some of southern Australia’s most remote and biologically-productive waters.

This project is funded by the Integrated Marine Observing System (IMOS - www.imos.org.au) through the Australian Acoustic Tagging and Monitoring System (AATAMS http://imos.org.au/aatams.html).

The maritime expeditions of the Australian sea lions are now yielding data that are important to both biologists and oceanographers and refining our understanding of the intimate connections between the mechanics of the Earth’s oceans, and the complex ecosystems which dwell within and upon them.

This is a truly interdisciplinary project, bringing together biologists studying living systems and oceanographers studying marine physics. The maritime expeditions of the Australian sea lions are now yielding data that are important to both biologists and oceanographers and refining our understanding of the intimate connections between the mechanics of the Earth’s oceans, and the complex ecosystems which dwell within and upon them.

This is an extremely cost-effective means of adding to existing global oceanographic data archives. It has the potential to complement existing sampling methods, especially for regions from which data are scarce and where these alternative methods may be difficult or prohibitively expensive to implement. Importanly, this approach provides a mechanism of targeting the collection of physical oceanographic data from regions that are biologically of interest (ie. where high trophic level predators feed), therefore providing greater insights into how physical ocean processes underpin marine ecosystems and commercial fisheries.

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Visit STAT's project page for additional information.

The dataset has been updated over time as outlined below. Each entry includes the version number, release date, type of change, and a short description.

Overview

Attributes are defined by seaturtle.org.

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
oid	Unique ID number (generated by OBIS-SEAMAP)
sort	Internal use
uid	Unique ID assigned by STAT
prognum	Program number
tag_id	PTT ID
utc	Date and time in UTC
lc	Location class
iq	Quality indicator
lat1	Latitude in decimal degrees
dir1	Dir 1
lon1	Longitude in decimal degrees
dir2	Dir 2
lat2
dir3	Dir 3
lon2
dir4	Dir 4
nb_mes	Number of messages received
big_nb_mes
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
tsn	ITIS Taxonomic Serial Number added by OBIS-SEAMAP
timestamp	Numeric timestamp
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
dataset_id	Dataset ID by OBIS-SEAMAP