IMAS Metadata Catalogue
AAP Project 4501: Mapping, predicting and monitoring ecological change in the Southern Ocean - HIMI Demersal Fish
The demersal fish assemblages on the Kerguelen Plateau has changed through time. This study aimed to detect, quantify, and map these changes. This study uses existing data collected from the Random Stratified Trawl Survey (RSTS) program administered through the Australian Antarctic Divisions (AAD). Raw RSTS data between 2000 and 2016 was extracted from the AAD database. The RSTS data contains information on the abundance (catch per unit effort, CPUE) on fish. RSTS data were paired with environmental data to be modelled. Hierarchical models of species communities (HMSC) were used to make inferences and predictions in the changes of demersal fish distribution. This record contains all the environmental data, R code, and outputs from this project. Raw RSTS data needs to be requested from the AAD under the authorization of AFMA.
Simple
Identification info
- Date (Publication)
- 2025-03-07T00:00:00
Identifier
- Title
- Information and documentation - Digital object identifier system
- Citation identifier
- ISO 26324:2012
- Code
- 10.25959/4GVK-RM21
- Codespace
- doi.org
- Description
- Digital Object Identifier (DOI)
Resource provider
Principal investigator
Collaborator
- Credit
- Australian Antarctic Program
- Status
- Completed
Point of contact
Point of contact
Institute for Marine and Antarctic Studies - Williams, Joel
University of Tasmania
Tasmania
Australia
- Topic category
-
- Oceans
Extent
N
S
E
W
))
Temporal extent
- Time period
- 2000-01-01 2016-12-31
- Maintenance and update frequency
- As needed
- Keywords (Theme)
-
- Species distribution modeling
- joint species distribution moeling
- marine protected areas
- Keywords (Taxon)
-
- Patagonia toothfish
- Icefish
- Global Change Master Directory Earth Science Keywords, Version 8.5
Resource constraints
- Use limitation
- Data, products and services from IMAS are provided "as is" without any warranty as to fitness for a particular purpose.
Resource constraints
- Other constraints
- This dataset is the intellectual property of the University of Tasmania (UTAS) through the Institute for Marine and Antarctic Studies (IMAS).
Resource constraints
- Linkage
-
https://licensebuttons.net/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Alternate title
- CC-BY
- Edition
- 4.0
- Website
-
https://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- Cite data as: Hill, N., & Williams, J. (2025). AAP Project 4501: Mapping, predicting and monitoring ecological change in the Southern Ocean - HIMI Demersal Fish [Data set]. Institute for Marine and Antarctic Studies. https://doi.org/10.25959/4GVK-RM21
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distribution format
-
- .csv, .Rdata, .r, .tiff
Resource lineage
- Statement
- Hierarchical Modelling of Species Communities (Hmsc), a flexible framework for Joint Species Distribution Modelling (JSDMs), was used to analyse catch per unit effort (CPUE) data collected from the Heard Island and McDonald Island (HIMI) Random Stratified Trawl Survey (RSTS) program. For more information on the methodology behind the RSTS please refer to associated publication. RSTS data is subject to confidentiality agreements and can be requested through the website (https://data.aad.gov.au/metadata/records/HIMI_RSTS_Strata). Rasters of the environmental data relevant to demersal fish analysis were sourced from various databases and data products and matched with the RSTS data locations For further information on the data and rasters used please refer to the publication. All environmental data used in the modelling are freely available and supplied R code outlines how the data were wrangled and used in the modelling process Annotated R code is provided to: 1) RSTS data wrangling 2) Environmental data wrangling 3) Hmsc modelling and evaluation 4) Plotting 5) Predicting and mapping Outputs, including predictive maps, from the Hmsc model are also publicly available.
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
- urn:uuid/a81f6b58-2942-451a-a563-321aea49545a
- Language
- English
- Character encoding
- UTF8
Type of resource
- Resource scope
- Dataset
- Name
- IMAS Dataset level record
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/a81f6b58-2942-451a-a563-321aea49545a
Point of truth URL of this metadata record
- Date info (Creation)
- 2025-02-18T00:00:00
- Date info (Revision)
- 2025-03-07T16:09:18
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available