OzCoasts
Integrated Marine and Coastal Regionalisation of Australia (IMCRA) v4.0 - Provincial Bioregions
A regionalisation of Australian waters (excluding waters adjacent to the Territory of Heard Island and McDonald Islands, and waters adjacent to the Australian Antarctic Territory) derived from deep-water demersal fish assemblages. A total of 41 onshelf and offshelf provincial bioregions were identified for IMCRA v4.0.
Onshelf provincial bioregions are based on the 17 IMCRA v3.3 demersal provinces and biotones identified in 1997.
Offshelf provincial bioregions were defined in 2004 as part of a program run by Geoscience Australia, CSIRO Marine Research and the National Oceans Office. They represent units that contain broad patterns in biodiversity, as represented by deep-water demersal fish assemblages, based on the assumption that the demersal fish distributions are a surrogate of marine faunal distributions. Below 2,000 m water depth, the boundaries of the benthic provincial bioregions are defined solely by the NMB (National Marine Bioregionalisation) geomorphic features data set. A total of 24 offshelf benthic provincial bioregions were defined on this basis, including 15 core bioregions representing areas of endemism, and 9 transition zones representing areas of faunal mixing.
For IMCRA v4.0 the coastline was replaced with the national 100k coastline to provide greater consistency. The Australian EEZ limit was sourced from AMB v2. Based on a decision by the Bioregionalisation Working Group, the shelf break from IMCRA v3.3 was largely retained, although in some instances the shelf break from the NMB (National Marine Bioregionalisation) provincial bioregions was used.
Simple
- Alternate title
-
MARINE_SDE.imcra_provincial_bioregions
- Date (Creation)
- 2002-07-01
- Date (Revision)
- 2006-11-01
Australian Government Department of the Environment
-Marine Data Manager
GPO Box 787
,Canberra
,ACT
,2601
,02 6274 1666
http://www.environment.gov.au/
Australian Government Department of the Environment
-Metadata Publisher
GPO Box 787
,CANBERRA
,ACT
,2601
,(02) 6274 1333
http://www.environment.gov.au/
- Presentation form
- Digital map
- Credit
-
Integrated Marine and Coastal Regionalisation of Australia (IMCRA) v4.0 - Provincial Bioregions. (c) Commonwealth of Australia, Australian Government Department of the Environment and Heritage. (2006).
- Status
- Completed
Australian Government Department of the Environment
-Marine Data Manager
GPO Box 787
,Canberra
,ACT
,2601
,02 6274 1666
http://www.environment.gov.au/
- Maintenance and update frequency
- As needed
- Name
-
SDE Feature Class
- Version
-
1
-
ANZLIC Search Words
-
-
MARINE_Classification
-
ECOLOGY Ecosystem_Classification
-
BOUNDARIES Biophysical_Classification
-
MARINE_Conservation
-
MARINE_Planning
-
- Keywords
-
-
Offline Data
-
- Use limitation
-
Data to be available in the Public Domain under Creative Commons by Attribution Licensing Agreement. More information can be found here: http://creativecommons.org/licenses/by/3.0/au
- Access constraints
- License
- Other constraints
-
Data to be available in the Public Domain under Creative Commons by Attribution Licensing Agreement. More information can be found here: http://creativecommons.org/licenses/by/3.0/au
- Spatial representation type
- Vector
- Denominator
- 5000000
- Metadata language
- English
- Character set
- UTF8
- Topic category
-
- Oceans
- Environment description
-
Microsoft Windows 7 Version 6.1 (Build 7600) ; Esri ArcGIS 10.1.1.3143
))
- Supplemental Information
-
published externally
- Reference system identifier
-
EPSG
/4283
/7.11.2
- Topology level
- Geometry only
- Geometric object type
- Composite
- Geometric object count
- 41
- Distribution format
-
-
SDE Feature Class
()
-
Distributor
Australian Government Department of the Environment
GPO Box 787
,CANBERRA
,ACT
,2601
,(02) 6274 1333
http://www.environment.gov.au
- Name
-
ArcGIS File geodatabase
- Version
-
1
- OnLine resource
-
acef-default:imcra4_pb
(
OGC:WMS-1.3.0-http-get-map
)
- Hierarchy level
- Dataset
Conformance result
- Date (Revision)
- 2000-01-01
- Explanation
-
Positional accuracy of the boundaries varies depending on the source data. Below 2,000 m where the Provincial Bioregions are defined solely by geomorphic features the positional accuracy is determined by the quality of the bathymetric, seismic reflection and sediment data, and the approximate accuracy of the boundaries is probably 10 km.
- Pass
- Yes
Conformance result
- Date (Revision)
- 2000-01-01
- Explanation
-
Attributes have been checked and names should be considered as authoritative.
Attributes include:
PB_NAME = provincial bioregion name
PB_NUM = provincial bioregion number
WATER_TYPE = coarse climate region for the PB
AREA_KM2 = area in square kilometres
- Pass
- Yes
Conformance result
- Date (Revision)
- 2000-01-01
- Explanation
-
IMCRA v4.0 incorporates a single consistent coastline.
- Pass
- Yes
Conformance result
- Date (Revision)
- 2000-01-01
- Explanation
-
Spatial and attribute data is complete for all of Australia, except the waters off Heard and McDonald Islands and the AAT.
- Pass
- Yes
- Statement
-
The benthic Provincial Bioregions were defined in 2004 as part of a program run by Geoscience Australia, CSIRO Marine Research and the National Oceans Office to create a spatial inventory of large-scale benthic biogeographical regions for Australias Exclusive Economic Zone. The Provincial Bioregions were defined by the regional structure in demersal fishes as represented by a one-dimensional made up of 281 nodes that correspond to the 500 m isobath around the Australian mainland. The analysis of the demersal fish data was undertaken by CSIRO Marine Research (Last et al., 2004). None of the offshore island territories were included in this assessment and each island territory was considered a separate bioregion. The boundaries of the Provincial Bioregions below 2,000 m water depth were defined solely by the geomorphic features, which were defined by the International Hydrographic Office (IHO, 2002), and were identified using a 250 m spatial resolution bathymetry model with reference to previously published geological studies. In the analysis of the demersal fish data, the boundaries between the Provincial Bioregions were defined by a Jaccard Analysis of the distributions. The final boundaries were drawn by eye around the boundaries of geomorphic features by a panel of scientific experts at a series of workshops with reference to previous studies. When completed, the boundaries defined the separate polygons and they were stored as an ArcGIS shape file. Care was taken to include as much biological information as possible when positioning the boundaries, particularly in shallow water (500 m).
- File identifier
- 30DA5FD4-AE08-405B-9F55-7E1833C230A4 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2021-01-19T18:24:19
- Metadata standard name
-
ISO 19139 Geographic Information - Metadata - Implementation Specification
- Metadata standard version
-
2007
Australian Government Department of the Environment
-Marine Data Manager
GPO Box 787
,Canberra
,ACT
,2601
,02 6274 1666
http://www.environment.gov.au/
- Dataset URI
-
C:\temp\temporary_metadata.xml
Overviews
Spatial extent
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