From Australian Oceans Data Network
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Management options to minimise formation of urchin barrens: kelp lines - assessment of changes in kelp growth at the kelp-barren interface

Created 24/06/2025

Updated 24/06/2025

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Linear video transects (40m total length; 20m into barrens and 20m into kelp from original fixed marker on the benthos) were used to assess changes in kelp growth in several points along the kelp - urchin barren interface in north-east Tasmania (St. Helens Island, Sloop Rock and Elephant Rock research areas). The video transects were deployed in the same position, and assessed at different points of time. The video was analysed in the laboratory to assess percentage of kelp and barren cover, as well as the kind of substratum, kelp species identifiable and number of sea urchins (Centrostephanus rodgerii and Heliocidaris erythrogramma) and other benthic organisms when present (rock lobster and abalone).

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Additional Info

Field Value
Title Management options to minimise formation of urchin barrens: kelp lines - assessment of changes in kelp growth at the kelp-barren interface
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/d64142d6-1d8e-46de-bbbc-0a45cd366d63
Contact Point
Australian Ocean Data Network
Craig.Johnson@utas.edu.au
Reference Period 01/11/2007 - 28/02/2011
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        148.25,
        -41.35
      ],
      [
        148.35,
        -41.35
      ],
      [
        148.35,
        -41.2
      ],
      [
        148.25,
        -41.2
      ],
      [
        148.25,
        -41.35
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Management options to minimise formation of urchin barrens: kelp lines - assessment of changes in kelp growth at the kelp-barren interface". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/management-options-to-minimise-formation-of-urchin-barrens-kelp-lines-assessment-of-changes-in-