From Australian Oceans Data Network
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Reproductive potential of the long spined sea urchin Centrostephanus rodgersii in Tasmania

Created 23/06/2025

Updated 23/06/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Recent poleward range expansion of the barrens-forming sea urchin Centrostephanus rodgersii (Diadematidae) from mainland Australia to Tasmania, has emphasized the need to understand the population dynamics of this ecologically important species in Tasmania. This work informs potential population dynamics of C. rodgersii in Tasmania by examination of its reproductive ecology. Reproductive periodicity (gonad index and propensity to spawn) was assessed bimonthly for 18 months at 4 sites in eastern Tasmania. Gamete viability was assessed by fertilization and early development trials. Temperature tolerance of Tasmanian C. rodgersii larvae was also assessed to determine whether this species has undergone an adaptive shift to the cooler Tasmanian environment. There was also no evidence for an adaptive shift in reproductive phenology. Reproductive phenology was assessed by determination of peak spawning period (gonad index analysis).

Files and APIs

Tags

Additional Info

Field Value
Title Reproductive potential of the long spined sea urchin Centrostephanus rodgersii in Tasmania
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/b71865ab-689f-40fd-a82f-50df460d939d
Contact Point
Australian Ocean Data Network
Scott.Ling@utas.edu.au
Reference Period 01/10/2003 - 23/08/2005
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        148.0,
        -41.5
      ],
      [
        148.5,
        -41.5
      ],
      [
        148.5,
        -41.0
      ],
      [
        148.0,
        -41.0
      ],
      [
        148.0,
        -41.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Reproductive potential of the long spined sea urchin Centrostephanus rodgersii in Tasmania". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/reproductive-potential-of-the-long-spined-sea-urchin-centrostephanus-rodgersii-in-tasmania