Data

Oyster Harbour (WA) Seagrass 1988-2006

University of Tasmania, Australia
Department of Water and Environmental Regulation, Government of Western Australia.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/1D34BD8E-74B1-41EB-8F81-398539215527&rft.title=Oyster Harbour (WA) Seagrass 1988-2006&rft.identifier=https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/1D34BD8E-74B1-41EB-8F81-398539215527&rft.description=Repeat surveys of aquatic flora were conducted in Oyster Harbour in 1988, 1996 and 2006. 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 initially conducted by the WA Department of Water. The objectives of the study were to map the distribution of the different seagrass species found in Princess Royal Harbour and Oyster Harbour and to compare the distributions with that observed in previous studies (1988 and 1996). This data was acquired by the ACEAS Seagrass Group as part of the 2013 Australia-wide risk assessment of Seagrass. Surveys were conducted again in March 2019 and January 2021 by the Department of Water and Environmental Regulation as Oyster Harbour Seagrass Survey. The datasets making up the 1988-2006 Oyster Harbour seagrass survey data are: WA_Oyster_seagrass_polygons - polygon dataset showing interpolated percentage cover of seagrass (all species combined for 1988 & 1997 surveys, with species information for 2006 survey). This record provides access to the initial WA DoW surveys. See associated DWER records in Data WA catalogue for access to newer surveys at this site.Maintenance and Update Frequency: notPlannedStatement: High quality aerial photographs were obtained and interpreted to identify seagrass areas for 1988, 1996 and 2006. Intersecting transects across these areas were used to ground truth density (percentage cover) and species composition of the seagrass habitats. The ground-truthing field work was undertaken by underwater video tows, shore transects, and spot dives and observations from a small punt or boat equipped with GPS tracking equipment. These areas were then digitised in ArcGIS. Limited resources and the methodology necessitated distributions and densities to be averaged over large areas. Seagrass distributions and changes in density may have been under or over represented in different parts of the harbour, making comparisons to previous surveys and estimations of change difficult.&rft.creator=Department of Water and Environmental Regulation, Government of Western Australia. &rft.date=2020&rft.coverage=westlimit=117.94080999999998; southlimit=-34.997757472528; eastlimit=117.98173000000001; northlimit=-34.946200000000005&rft.coverage=westlimit=117.94080999999998; southlimit=-34.997757472528; eastlimit=117.98173000000001; northlimit=-34.946200000000005&rft_rights= http://creativecommons.org/licenses/by/4.0/&rft_rights=http://i.creativecommons.org/l/by/4.0/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution 4.0 International License&rft_rights=http://creativecommons.org/international/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=Cite data as: Oyster Harbour (WA) Seagrass Cover 1988-2006. Department of Water, Government of Western Australia (2013). Data accessed at https://metadata.imas.utas.edu.au/geonetwork/srv/en/metadata.show?uuid=1D34BD8E-74B1-41EB-8F81-398539215527 on (access date).&rft_rights=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.&rft_rights=Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0&rft_subject=biota&rft_subject=EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PLANTS | ANGIOSPERMS (FLOWERING PLANTS) | MONOCOTS | SEAGRASS&rft_subject=EARTH SCIENCE | BIOSPHERE | AQUATIC ECOSYSTEMS | BENTHIC HABITAT&rft_subject=EARTH SCIENCE | BIOSPHERE | AQUATIC ECOSYSTEMS | MARINE HABITAT&rft_subject=WESTERN AUSTRALIA&rft_subject=Marine and Estuarine Ecology (incl. Marine Ichthyology)&rft_subject=BIOLOGICAL SCIENCES&rft_subject=ECOLOGY&rft_subject=Environmental Management&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=ENVIRONMENTAL SCIENCE AND MANAGEMENT&rft_subject=Environmental Sciences not elsewhere classified&rft_subject=OTHER ENVIRONMENTAL SCIENCES&rft_subject=research aeroplane&rft_subject=Abundance of biota&rft_subject=Benthic habitat&rft_subject=cameras&rft.type=dataset&rft.language=English Access the data

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License Text

Cite data as: Oyster Harbour (WA) Seagrass Cover 1988-2006. Department of Water, Government of Western Australia (2013). Data accessed at https://metadata.imas.utas.edu.au/geonetwork/srv/en/metadata.show?uuid=1D34BD8E-74B1-41EB-8F81-398539215527 on (access date).

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.

Access:

Open

Brief description

Repeat surveys of aquatic flora were conducted in Oyster Harbour in 1988, 1996 and 2006. 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 initially conducted by the WA Department of Water. The objectives of the study were to map the distribution of the different seagrass species found in Princess Royal Harbour and Oyster Harbour and to compare the distributions with that observed in previous studies (1988 and 1996). This data was acquired by the ACEAS Seagrass Group as part of the 2013 Australia-wide risk assessment of Seagrass. Surveys were conducted again in March 2019 and January 2021 by the Department of Water and Environmental Regulation as "Oyster Harbour Seagrass Survey". The datasets making up the 1988-2006 Oyster Harbour seagrass survey data are: WA_Oyster_seagrass_polygons - polygon dataset showing interpolated percentage cover of seagrass (all species combined for 1988 & 1997 surveys, with species information for 2006 survey). This record provides access to the initial WA DoW surveys. See associated DWER records in Data WA catalogue for access to newer surveys at this site.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: High quality aerial photographs were obtained and interpreted to identify seagrass areas for 1988, 1996 and 2006. Intersecting transects across these areas were used to ground truth density (percentage cover) and species composition of the seagrass habitats. The ground-truthing field work was undertaken by underwater video tows, shore transects, and spot dives and observations from a small punt or boat equipped with GPS tracking equipment. These areas were then digitised in ArcGIS. Limited resources and the methodology necessitated distributions and densities to be averaged over large areas. Seagrass distributions and changes in density may have been under or over represented in different parts of the harbour, making comparisons to previous surveys and estimations of change difficult.

Notes

Credit
Department of Water, Government of Western Australia.

This dataset is part of a larger collection

117.98173,-34.9462 117.98173,-34.99776 117.94081,-34.99776 117.94081,-34.9462 117.98173,-34.9462

117.96127,-34.971978736264

text: westlimit=117.94080999999998; southlimit=-34.997757472528; eastlimit=117.98173000000001; northlimit=-34.946200000000005

Other Information
(Oyster Harbour seagrass polygons 1988-2006 [.shp download])

uri : https://data.imas.utas.edu.au/attachments/1D34BD8E-74B1-41EB-8F81-398539215527/WA_Oyster_seagrass_polygons.zip

(2013 Synthesis of seagrass mapping studies [report])

uri : https://data.imas.utas.edu.au/attachments/1D34BD8E-74B1-41EB-8F81-398539215527/2013-Synthesis-of-seagrass-mapping-studies.pdf

(Associated surveys - seagrass survey - points [Data WA catalogue])

uri : https://catalogue.data.wa.gov.au/dataset/oyster-harbour-seagrass-survey-points

(Associated surveys - seagrass survey - cover [Data WA catalogue])

uri : https://catalogue.data.wa.gov.au/dataset/oyster-harbour-seagrass-survey-cover

global : a1a2d181-d453-43e1-ae2e-627ec2a9bd1e

Identifiers
  • global : 1D34BD8E-74B1-41EB-8F81-398539215527