From Western Australia Government
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Wilson Inlet Seagrass Survey - Extent (DWER-115)

Created 23/06/2025

Updated 24/10/2025

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Wilson Inlet was surveyed in December 2017, April 2018, December 2019, December 2020, December 2021 and December 2022 by underwater drop camera observations and/or observations through a viewing cone. Seagrass distribution and cover (as percentage cover in categories: 0, 0-10%, 10-25%, 25-50%, 50-75%, 75-90%, 90-100%) were recorded. The canopy height (in 10 cm intevals) and epiphytic cover (as low, medium, high) was also estimated. Macroalgae distribution and cover (as percentage cover in categories: 0, 0-10%, 10-25%, 25-50%, 50-75%, 75-90%, 90-100%) were recorded. At approximately a third of the sites, physical water profiles, photosynthetically active radiation (euphotic depth), and secchi depth were recorded. The datasets making up the seagrass survey data are: Wilson_Seagrass - point dataset Wilson_Seagrass_Extent - polygon showing presence/absence derived from points Wilson_Seagrass_Cover - polygon showing percentage cover derived from points Layers: Wilson_Seagrass_Dec_2017 Wilson_Seagrass where Year = '2017' Wilson_Seagrass_Apr_2018 Wilson_Seagrass where Year = '2018' Wilson_Seagrass_Dec_2019 Wilson_Seagrass where Year = '2019' Wilson_Seagrass_Dec_2020 Wilson_Seagrass where Year = '2020' Wilson_Seagrass_Dec_2021 Wilson_Seagrass where Year = '2021' Wilson_Seagrass_Dec_2022 Wilson_Seagrass where Year = '2022'

Wilson_Seagrass_Extent_Dec_2017 Wilson_Seagrass_Extent where Year = '2017' Wilson_Seagrass_Extent_Apr_2018 Wilson_Seagrass_Extent where Year = '2018' Wilson_Seagrass_Extent_Dec_2019 Wilson_Seagrass_Extent where Year = '2019' Wilson_Seagrass_Extent_Dec_2020 Wilson_Seagrass_Extent where Year = '2020' Wilson_Seagrass_Extent_Dec_2021 Wilson_Seagrass_Extent where Year = '2021' Wilson_Seagrass_Extent_Dec_2022 Wilson_Seagrass_Extent where Year = '2022'

Wilson_Seagrass_Cover_Dec_2017 Wilson_Seagrass_Cover where Year = '2017' Wilson_Seagrass_Cover_Apr_2018 Wilson_Seagrass_Cover where Year = '2018' Wilson_Seagrass_Cover_Dec_2019 Wilson_Seagrass_Cover where Year = '2019' Wilson_Seagrass_Cover_Dec_2020 Wilson_Seagrass_Cover where Year = '2020' Wilson_Seagrass_Cover_Dec_2021 Wilson_Seagrass_Cover where Year = '2021' Wilson_Seagrass_Cover_Dec_2022 Wilson_Seagrass_Cover where Year = '2022'

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Additional Info

Field Value
Title Wilson Inlet Seagrass Survey - Extent (DWER-115)
Language English
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/ec453f07-9793-4778-b288-bfc2f88443aa
Remote Last Updated 16/10/2025
Contact Point
Department of Water and Environmental Regulation
spatial.data@dwer.wa.gov.au
Reference Period 21/02/2022
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        117.32643196300012,
        -35.02251596399998
      ],
      [
        117.48071150400006,
        -35.02251596399998
      ],
      [
        117.48071150400006,
        -34.96692284699998
      ],
      [
        117.32643196300012,
        -34.96692284699998
      ],
      [
        117.32643196300012,
        -35.02251596399998
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Western Australia Government

Data Source

This dataset was originally found on Western Australia Government "Wilson Inlet Seagrass Survey - Extent (DWER-115)". Please visit the source to access the original metadata of the dataset:
https://catalogue.data.wa.gov.au/dataset/wilson-inlet-seagrass-survey-extent