From Australian Oceans Data Network
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Utilisation of the introduced New Zealand screwshell (Maoricolpus roseus) by native hermit crabs in eastern Tasmania - depth-related variance in shell occupancy

Created 23/06/2025

Updated 23/06/2025

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Interactions between native and introduced species can help to elucidate the impact of exotic species on the broader community. This work examines utilisation of an introduced gastropod, the New Zealand screwshell (Maoricolpus roseus) by native hermit crabs in eastern Tasmania. Variation in shell occupancy by hermit crabs was examined across different depths (10, 20, 30 and 40m) within a single site (Dennes Point, SE Tasmania). Sediment cores were taken from 10 and 20 m to compare sediment size structure. A sediment preference trial using the hermit crab Paguristes tuberculatus was also carried out (using sediment from 10m and 20m) to try and determine the low level of hermit crab occupancy at 20m (compared with that at 10m).

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Title Utilisation of the introduced New Zealand screwshell (Maoricolpus roseus) by native hermit crabs in eastern Tasmania - depth-related variance in shell occupancy
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/edaeddd9-cf22-495e-a3a5-a5a75b5ca892
Contact Point
Australian Ocean Data Network
Anthony.Reid@dpipwe.tas.gov.au
Reference Period 01/01/2003 - 01/01/2003
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.2,
        -43.1
      ],
      [
        147.5,
        -43.1
      ],
      [
        147.5,
        -42.7
      ],
      [
        147.2,
        -42.7
      ],
      [
        147.2,
        -43.1
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Utilisation of the introduced New Zealand screwshell (Maoricolpus roseus) by native hermit crabs in eastern Tasmania - depth-related variance in shell occupancy". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/utilisation-of-the-introduced-new-zealand-screwshell-maoricolpus-roseus-by-native-hermit-crabs-1