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

Zooplankton razing Rates - Experiments conducted aboard the Umitaka-Maru, 2015

Created 23/06/2025

Updated 23/06/2025

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

The dataset was developed during a cruise on the Umitaka-maru along the 110 E meridian from Fremantle to the ice edge. At five stations, zooplankton were collected and specimens selected for grazing experiments. They were added to 2L bottles, allowed to acclimate over 24 hours then placed in an onboard incubator and allowed to graze on natural phytoplankton assemblages. Water circulation around the incubator kept the temperature to that of seawater at the time of collection. Shade cloth was used to mimic the light conditions at each site. Where possible 4 replicates were run for each species and 4 control bottles were set up with the same phytoplankton assemblage but with no zooplankton added. Initial subsamples were taken and preserved in Lugol's solution. At the end of each experiment, further subsamples were taken and preserved in Lugol's solution. In the IMAS lab the phytoplankton samples were settled into smaller volumes and processed through a Coulter Counter to obtain the number of cells that had been removed by the plankton (initial conc - final conc). From those values, grazing rates of the species could be calculated for each site along the transect.

Files and APIs

Tags

Additional Info

Field Value
Title Zooplankton razing Rates - Experiments conducted aboard the Umitaka-Maru, 2015
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/0e12aa70-04e5-4008-b6b4-cd1277e35418
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 10/01/2015 - 25/01/2015
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        108.98438,
        -65.36684
      ],
      [
        113.90625,
        -65.36684
      ],
      [
        113.90625,
        -39.90974
      ],
      [
        108.98438,
        -39.90974
      ],
      [
        108.98438,
        -65.36684
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Zooplankton razing Rates - Experiments conducted aboard the Umitaka-Maru, 2015". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/zooplankton-razing-rates-experiments-conducted-aboard-the-umitaka-maru-2015