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Density estimates of Spotted Handfish (Brachionichthys hirsutus) - GPS Underwater Visual Census. 2015-2016

Created 25/06/2025

Updated 25/06/2025

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Dive surveys were conducted in 2015 and 2016 to establish a baseline and monitor the status of the critically endangered spotted handfish (Brachionichthys hirsutus) population. This dataset contains track records of variable length, GPS tracked underwater visual census transects conducted within 11 sites across the Derwent Estuary (n=9) and D'Entrecasteaux Channel (n=2). Records illustrated search effort (transect length, swathed area) and total fish sighted along each transect. Data were also presented in a standardised unit, with density estimates (fish per hectare [Ha]) extrapolated for each transect. In addition, this dataset also included information for each sighting of individual fish. This dataset contains size measurement (total length) and location (depth, latitude, longitude) records for each sighted fish.

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Additional Info

Field Value
Title Density estimates of Spotted Handfish (Brachionichthys hirsutus) - GPS Underwater Visual Census. 2015-2016
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/566fdc6c-ab69-4e13-9c89-38e15f564bc2
Contact Point
CSIRO Marlin Data Catalogue
Lincoln.Wong@csiro.au
Reference Period 01/04/2015 - 01/11/2016
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.082,
        -43.30168015640918
      ],
      [
        147.4453217478467,
        -43.30168015640918
      ],
      [
        147.4453217478467,
        -42.87462489881998
      ],
      [
        147.082,
        -42.87462489881998
      ],
      [
        147.082,
        -43.30168015640918
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "Density estimates of Spotted Handfish (Brachionichthys hirsutus) - GPS Underwater Visual Census. 2015-2016". Please visit the source to access the original metadata of the dataset:
https://marlin.csiro.au/geonetwork/srv/eng/csw/dataset/density-estimates-of-spotted-handfish-brachionichthys-hirsutus-gps-underwater-visual-2015-2016