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

Identification info

Date (Revision): 2013-04-29

Date (Publication): 2017-10-02

Owner

Department of Water (DoW), Western Australian Government

P.O. Box K822

Perth

Western Australia

6842

Australia

Credit: Department of Water, Government of Western Australia.

Status: Completed

Point of contact

Department of Water (DoW), Western Australian Government - Kieryn Kilminster

P.O. Box K822

Perth

Western Australia

6842

Australia

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

Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research

AODN Platform Vocabulary

research vessel

AODN Discovery Parameter Vocabulary

Abundance of biota

Keywords (Theme)

Benthic habitat

AODN Instrument Vocabulary

underwater cameras

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

Distributor

Terrestrial Ecosystem Research Network - Australian Coastal Ecosystems Facility - ACEF Coastal Data Manager

Terrestrial Ecosystem Research Network - Australian Coastal Ecosystems Facility

Brisbane

Queensland

4072

Australia

+61 7 3346 7021

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

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - IMAS Data Manager

Parent metadata

WA Seagrass Synthesis 2013

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

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