Swan-Canning Estuary (WA) Seagrass 2011
This data is part of the 2013 report "Synthesis of seagrass mapping studies" conducted by the Water Science Branch of the Department of Water.
Surveys were conducted by the WA Department of Water together with Geoscience Australia. The objective of these surveys was to collect baseline data on seagrass composition and distribution in key estuaries of southern and south-western WA.
This data was acquired by the ACEAS Seagrass Group as part of the 2013 Australia-wide risk assessment of Seagrass.
The datasets making up the Swan-Canning Estuary seagrass survey data are:
WA_SwanCanning_SAVhab_polygons - polygon dataset showing areas of seagrass habitat derived from aerial imagery
Simple
Identification info
- Date (Revision)
- 2013-04-29
- Date (Publication)
- 2017-10-02
Owner
- Credit
- Department of Water, Government of Western Australia.
- Status
- Completed
Point of contact
- Spatial representation type
- Vector
- Topic category
-
- Biota
Extent
Temporal extent
- Time position
- 2011-01-01T00:00:00
- Time position
- 2011-12-31T00:00:00
- Maintenance and update frequency
- Not planned
Resource format
- Title
- ESRI Shapefile
- Date
- Edition
- -
- GCMD Keywords, Version 8.5
- Region
-
- WESTERN AUSTRALIA
- Keywords (Theme)
-
- Benthic habitat
- AODN Instrument Vocabulary
Resource specific usage
- Specific usage
- Data supplied for use by the Seamap Australia Project.
Resource constraints
- Classification
- Unclassified
Resource constraints
- Linkage
-
http://i.creativecommons.org/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Website
-
http://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- Cite data as: Swan-Canning Estuary (WA) Seagrass 2011. Department of Water, Government of Western Australia (2013). Data accessed at http://metadata.imas.utas.edu.au/geonetwork/srv/en/metadata.show?uuid=78546037-EE5B-43C4-8018-0C9CE81E51B3 on (access date).
- Other constraints
- This dataset is hosted by the Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, on behalf of the Western Australian Government for the purposes of the Seamap Australia collaborative project (testing a national marine benthic habitat classification scheme).
- Language
- English
- Character encoding
- UTF8
Content Information
- Content type
- Physical measurement
- Description
- Percentage cover of seagrass
Identifier
- Code
- Abundance of biota
- Identifier
- http://vocab.nerc.ac.uk/collection/P06/current/UPCT
- Name
- Percent
- Description
- Appended to original data for styling purposes for the Seamap Australia Project.
- Name
-
Benthic habitat
- Name
-
SM_HAB_CLS
Distribution Information
- Distribution format
-
-
ESRI Shapefile
-
ESRI Shapefile
Distributor
Distributor
- OnLine resource
-
Swan Canning seagrass polygons 2011 [.shp download]
- OnLine resource
-
2013 Synthesis of seagrass mapping studies [report]
Resource lineage
- Statement
- Method as taken from the 2013 report "Synthesis of seagrass mapping studies" conducted by the Water Science Branch of the Department of Water": A seagrass survey of the Swan-Canning estuary was conducted in March 2011 by the Department of Water. The survey used underwater video to classify seagrass coverage at fixed points along transects across the estuary. This data was used together with bathymetry and recent aerial imagery to map seagrass in the estuary. Percentage cover was estimated on a scale of 0 to 100% incorporating 8 categories. The GPS coordinates were pre-determined for this study with the help of rapid-eye imagery which identified the presence of submerged aquatic vegetation. Transects spanned across the width of the estuary in different directions. Seagrass distribution is limited by light and therefore depth. Using bathymetry information, GPS coordinates were spaced closer together in the shallower regions to maximise information on seagrass coverage. Coordinates were 50 m apart in the 0-2m depth range, 100 m apart in the 2-3 m depth range and 500 m apart in areas where depths were greater than 3 m. Depths and readings of photosynthetic active radiation (PAR) were taken at every point. Seagrass distribution in the estuary was mapped by physically drawing polygons around habitats visible in the aerial imagery in ARC GIS and integrating information from the data collected in the field. The maps may under or over represent seagrass habitats in different parts of the estuary. The distance between transects limited the ability to use interpolation of the density data. Interpolated maps proved too inaccurate. This dataset does not include percentage cover estimates and instead includes only polygons indicating seagrass habitats. Additional data including percentage estimates may be available from the original data provider (see Point of Contact).
- Hierarchy level
- Dataset
- Hierarchy level
- Dataset
Platform
Identifier
- Code
- research vessel
Instrument
Identifier
- Code
- underwater cameras
- Maintenance and update frequency
- Not planned
- Maintenance note
- This metadata record has been created by the merging of the following two records: http://acef.tern.org.au/geonetwork/srv/eng/metadata.show?uuid=78546037-EE5B-43C4-8018-0C9CE81E51B3 http://acef.tern.org.au/geonetwork/srv/eng/metadata.show?uuid=A9D7EAA8-B833-467F-9D92-7E0D9E8CCB2A These were previously hosted by the Australian Coastal Ecosystems Facility (ACEF) of the Terrestrial Ecosystem Research Network (TERN).
Metadata
- Metadata identifier
-
urn:uuid/78546037-EE5B-43C4-8018-0C9CE81E51B3
- Language
- English
- Character encoding
- UTF8
Point of contact
- Parent metadata
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/78546037-EE5B-43C4-8018-0C9CE81E51B3
Point of truth URL of this metadata record
- Date info (Creation)
- 2020-09-23T12:47:45
- Date info (Revision)
- 2024-12-07T10:00:32
Metadata standard
- Title
- ISO 19115-3:2018