From Australian Oceans Data Network
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Abundance and distribution of coastal, inshore zooplankton in the Huon Estuary and D'Entrecasteaux Channel, Tasmania: Grazing study in North West Bay (1-2 October, 2006)

Created 23/06/2025

Updated 23/06/2025

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Mesozooplankton community composition and structure were examined throughout the D’Entrecasteaux Channel, Huon Estuary and North West Bay, Tasmania. The data represented by this record was collected as part of a grazing study conducted in North West Bay (1-2 October, 2006). The grazing impacts of microzooplankton and mesoplankton on the phytoplankton communities were examined during several process studies. Experiments with mesozooplankton grazers were restricted to dominant omnivorous copepods (e.g. Acartia tranteri, Paracalanus indicus, Centropages australiensis) cladocerans and appendicularians. Grazing rates of microzooplankton reached as high as 96% of daily primary production, while that of mesozooplankton herbivours was never greater than 20%. Trophic interactions between the species are complicated by the recent arrival of the heterotrophic dinoflagellate Noctiluca scintillans to the region. This species grazes heavily on phytoplankton, smaller zooplankton and faecal pellets. Noctiluca scintillans accounted for up to 20% of mesozooplankton abundance in autumn and it is capable of both suppressing zooplankton abundance and reducing the sedimentation of faecal pellets to the seafloor.

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Field Value
Title Abundance and distribution of coastal, inshore zooplankton in the Huon Estuary and D'Entrecasteaux Channel, Tasmania: Grazing study in North West Bay (1-2 October, 2006)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/0d619e54-c8f8-4baa-b099-0c077eea47b1
Contact Point
Australian Ocean Data Network
k.swadling@utas.edu.au
Reference Period 01/10/2006 - 02/10/2006
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.0,
        -43.5
      ],
      [
        147.5,
        -43.5
      ],
      [
        147.5,
        -43.0
      ],
      [
        147.0,
        -43.0
      ],
      [
        147.0,
        -43.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Abundance and distribution of coastal, inshore zooplankton in the Huon Estuary and D'Entrecasteaux Channel, Tasmania: Grazing study in North West Bay (1-2 October, 2006)". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/abundance-and-distribution-of-coastal-inshore-zooplankton-in-the-huon-estuary-and-dentreca-2006