TemperateReefBase Geonetwork Catalogue
CTD Data from the toothfish fishery at Heard Island and McDonald Island
Australian vessels fishing in the Commonwealth managed fishery for Patagonian Toothfish and mackerel icefish in the Heard Island and MacDonald Island area deployed conductivity, temperature and depth (CTD) loggers attached to their fishing gear. In most cases CTDs were deployed on demersal longlines but in some cases they were attached to trawl nets and traps.
Data were collected on five fishing vessels during the fishing seasons of 2019/20 and 2020/21
The data were collected with a CTD (Conductivity, Temperature and Depth Recorder) from the Sea Mammal Research Unit (SMRU) at St Andrew’s University Scotland. Files were downloaded with their TagConfig software in text (.txt) format. Recordings were made at (typically) 1 second intervals for the duration of the fishing event, recording data throughout the water column while setting the gear, then while fishing on the sea floor and again through the water column when the gear was retrieved. Each data file has data on date/time, pressure referenced to surface pressure (dbar), absolute pressure (dbar), temperature (°C), conductivity *mS/cm) and salinity (psu). The data are currently not linked to geographical coordinates which are confidential, but these may be able to be released on contact with the data owner and subject to appropriate confidentiality arrangements.
Number of deployments:
2019/20: 25
2020/21: 27
Simple
Identification info
- Alternate title
- CTD Data from the toothfish fishery at Heard Island and McDonald Island
- Date (Publication)
- 2022-02-09
- Edition
- 1
Originator
Publisher
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Other citation details
- Unreleased data
- Purpose
- Data have been collected in order to inform understanding of environmental variability of oceanographic conditions on the fishing grounds.
- Status
- On going
Custodian
- Topic category
-
- Oceans
Extent
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2020-05-02 2021-12-10
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
- EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
- EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE
- Keywords
-
- FISHING VESSELS
- NASA/GCMD Earth Science Keywords
-
- CTD > Conductivity Temperature Depth
- NASA/GCMD Earth Science Keywords
-
- SHIPS
- NASA/GCMD Earth Science Keywords
-
- AMD
- AMD/AU
- CEOS
- NASA/GCMD Earth Science Keywords
-
- OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS
- GEOGRAPHIC REGION > POLAR
- OCEAN > SOUTHERN OCEAN > KERGUELEN PLATEAU
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are not publicly available for download.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4578_CTD_HIMI when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Units of distribution
- MB
- Transfer size
- 484
- Distribution format
-
- Text
- OnLine resource
-
GET DATA > DIRECT DOWNLOAD
Download the dataset.
- OnLine resource
-
PROJECT HOME PAGE
Public information for AAS project 4578
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.
Resource lineage
- Statement
- In most cases CTDs were calibrated by the NATA accredited CSIRO Oceanographic Calibration Facility prior to deployment. Calibration reports can be made available on application to the data owner. There was an issue relating to calibration of CTD numbers 15075,15078 and 15079 after their firmware was updated around January 2021 which may have corrupted the pressure sensor data and the programmed recording cycle.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2022-02-09 - record created by Tim Lamb.
Metadata
- Metadata identifier
- string/AAS_4578_CTD_HIMI
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- f264b567-93ef-441d-a667-8d12b8fe0b00
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2022-02-09T15:11:34
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/AAS_4578_CTD_HIMI
Point of truth for the metadata record
- Date info (Creation)
- 2022-02-09T00:00:00
- Date info (Last Update)
- 2022-02-09
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
Provided by
