From Australian Oceans Data Network
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Impacts of the Northern Pacific Seastar (Asterias amurensis) and European green crab (Carcinus maenas) on soft sediment assemblages in south east Tasmania

Created 23/06/2025

Updated 23/06/2025

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This study compared the individual and combined effects of two introduced marine species in SE Tasmania - the northern Pacific seastar (Asterias amurensis) and the European green crab (Carcinus maenas) - and investigated their impact on native invertebrate fauna using in situ caging experiments. Both species predate upon bivalves, and this study assessed the biological interaction between these introduced species and native bivalve species - allowing the impact of multiple exotic predator species to be investigated in one system. The cage experiments have 5 treatment groups, including all combinations of presence (single animal) and absence of seastars and crabs, and a control with neither. Predator activity (number and type of bivalves consumed) was recorded after 8 weeks by suction-sampling each cage and counting and identifying fauna.

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Additional Info

Field Value
Title Impacts of the Northern Pacific Seastar (Asterias amurensis) and European green crab (Carcinus maenas) on soft sediment assemblages in south east Tasmania
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/284c9c90-2ca4-4ae7-8709-de4c99d5493b
Contact Point
Australian Ocean Data Network
Jeff.Ross@utas.edu.au
Reference Period 02/01/1997 - 01/02/1998
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.75,
        -43.05
      ],
      [
        147.95,
        -43.05
      ],
      [
        147.95,
        -42.85
      ],
      [
        147.75,
        -42.85
      ],
      [
        147.75,
        -43.05
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Impacts of the Northern Pacific Seastar (Asterias amurensis) and European green crab (Carcinus maenas) on soft sediment assemblages in south east Tasmania". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/impacts-of-the-northern-pacific-seastar-asterias-amurensis-and-european-green-crab-carcinus-mae