CTD data from the toothfish fishery in East Antarctica

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.

Simple

Identification info

Alternate title
CTD data from the toothfish fishery in East Antarctica
Date (Publication)
2018-09-17
Edition
2

Originator

Ziegler, P. and Nowara, G.

Publisher

Australian Antarctic Data Centre

Principal investigator

ZIEGLER, PHILIPPE
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

ZIEGLER, PHILIPPE
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

NOWARA, GABRIELLE
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Name
CAASM Metadata
Other citation details
Confidential data - restricted
Website
https://data.aad.gov.au/metadata/records/AAS_4030_CTD_Toothfish_Fishery

Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Topic category
  • Biota
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2015-09-01 2018-03-31
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > OCEANS > AQUATIC SCIENCES > FISHERIES
  • EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
  • EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
  • EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
  • EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
Keywords
  • CCAMLR
NASA/GCMD Earth Science Keywords
  • CTD > Conductivity Temperature Depth
NASA/GCMD Earth Science Keywords
  • SHIPS
NASA/GCMD Earth Science Keywords
  • AMD/AU
  • AMD
  • CEOS
NASA/GCMD Earth Science Keywords
  • GEOGRAPHIC REGION > POLAR
  • OCEAN > SOUTHERN OCEAN

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
As these data have been generated by commercial fishing vessels, they are confidential and are only available on request to the listed personnel at the Australian Antarctic Division.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

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_4030_CTD_Toothfish_Fishery when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Distributor

Fees
Free
Units of distribution
MB
Transfer size
43
Distribution format
  • Text, PDF

OnLine resource
GET DATA

Make a request to access the dataset

OnLine resource
PROJECT HOME PAGE

Public information for AAS project AAS_4030

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset.

Resource lineage

Statement
The data files contain information on date, time, temperature (degrees C), depth (m), salinity (psu) and conductivity (mS/cm). Although the main data files have two slightly different formats for different voyages, the structure is explained in detail in the documentation. Additional files relating to the deployment of individual CTD devices is available in some cases. Documentation and a copy of the CTD instrument user manual are included, which will assist in the interpretation of data.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2018-09-17 - record created by Dave Connell from a template completed by Gabrielle Nowara. 2018-10-01 - record updated by Dave Connell after an updated dataset was provided by Gabrielle Nowara.

Metadata

Metadata identifier
string/AAS_4030_CTD_Toothfish_Fishery

Language
English
Character encoding
UTF8

Author

NOWARA, GABRIELLE
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
145c4a21-72dc-4d8a-a294-75bc58c54db8

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2021-11-17T12:22:29

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_4030_CTD_Toothfish_Fishery

Point of truth for the metadata record

Date info (Creation)
2018-09-17T00:00:00
Date info (Last Update)
2018-10-01

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
S
E
W


Keywords


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