From Australian Oceans Data Network
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CTD data from the toothfish fishery in East Antarctica

Created 13/03/2025

Updated 13/03/2025

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Australian fishing vessels involved in exploratory fishing for Antarctic toothfish in East Antarctica under the auspices of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) collected data required under their exploratory fishing permit. Conductivity, temperature and depth (CTD) loggers were attached to bottom longlines sets to collect data while fishing for Antarctic toothfish in Antarctic waters. The data relates to Objective 2 of the research work required: Collect and utilise environmental data to inform spatial management approaches for the conservation of toothfish, bycatch species and representative areas of benthic biodiversity (CCAMLR 2016). Data were collected on two fishing vessels during the austral summers (December to February) of 2015/16, 2016/17 and 2017/18 in CCAMLR Divisions 58.4.1 and 58.4.2. The data were collected with DST CTD (Conductivity, Temperature and Depth Recorder) from Star-Oddi (Conductivity: 13-50 mS/cm, maximum depth: 2400 m). Files were then downloaded with SeaStar and are available in the original data format. Recordings were made at 5 or 10 second intervals for the duration of up to around 24h, recording data throughout the water column while setting the longline and then while stationary on the sea floor. Each deployment has data on time, temperature (degrees C), salinity (psu), conductivity (mS/cm) and depth (m), and is linked to geographical coordinates. Number of deployments: 2015/16: 34 2016/17: 31 2017/18: 75 CCAMLR (2016) Joint research proposal for the Dissostichus spp. exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia, France, Japan, Republic of Korea and Spain. Delegations of Australia, France, Japan, Republic of Korea and Spain. Report to Fish Stock Assessment Working Group, WG-FSA-16/29, CCAMLR, Hobart, Australia. Dates and times in the data files are recorded in UTC. Further information is provided in a pdf document in the download file.

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Field Value
Title CTD data from the toothfish fishery in East Antarctica
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/0662eefd-4c4b-4195-99d5-cc3c36ff5b14
Contact Point
CSIRO Oceans & Atmosphere
metadata@aad.gov.au
Reference Period 01/09/2015 - 31/03/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[30.0, -66.5], [150.0, -66.5], [150.0, -60.0], [30.0, -60.0], [30.0, -66.5]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "CTD data from the toothfish fishery in East Antarctica". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/ctd-data-from-the-toothfish-fishery-in-east-antarctica

Original dataset
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