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SAIMOS - Biological and Flow Cytometry data collected from CTD stations in South Australia, in November 2021

Created 23/06/2025

Updated 23/06/2025

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Flow cytometry data was collected in November 2021, in waters off South Australia. The general purpose of the study is to be able to establish background knowledge on the ecosystem on the continental shelf of South Australia and the impact of upwelling/saline outflow events on microbial communities to ultimately develop a biogeochemical model of the region. Sampling was carried out during cruises conducted on board the RV Ngerin as part of the Southern Australian Integrated Marine System (SAIMOS). During each cruise, the physical, chemical and biological properties of the chlorophyll fluorescence maximum (DCM) layer were investigated. Flow cytometry data has been collected for picophytoplankton, bacteria and viruses. Six main stations have been sampled over the course of the study, five are located on the 100 m isobath, i.e. RS (35.508S, 136.278E), B2 (35.418S, 136.148E), B3 (35.258S, 136.048E), SAM2CP/B4 (35.168S, 135.418E) and SAM5CB/B5 (35.008S, 135.198E), and one from an offshore station (B1; 36.188S, 136.178E) located southwest of Kangaroo Island. Note that combining the distances between stations (14–25 nautical miles), the average component of the current velocity at middepth along the shelf (0.01 m s21) and the average speed of the vessel (i.e. 9 knots) indicate that different water masses were sampled at each station. Additional samples have on occasion been collected from the National Reference Station (NRS) at Kangaroo Island (35.832S, 136.447E) and the SA Spencer Gulf Mouth Mooring (SAM8SG, 35.25S, 136.690E), where the saline outflow occurs. Since July 2019, sampling has also been conducted at "Gulf" sites: Upper Spencer Gulf (USG) and Gulf St Vincent (GSV), with the original sites identified as "Shelf" sites.

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Additional Info

Field Value
Title SAIMOS - Biological and Flow Cytometry data collected from CTD stations in South Australia, in November 2021
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/bf940c3b-5fe0-4e93-8513-be086c9f3598
Contact Point
Australian Ocean Data Network
mark.doubell@sa.gov.au
Reference Period 23/11/2021 - 24/11/2021
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        135.0,
        -35.9
      ],
      [
        136.9,
        -35.9
      ],
      [
        136.9,
        -34.9
      ],
      [
        135.0,
        -34.9
      ],
      [
        135.0,
        -35.9
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "SAIMOS - Biological and Flow Cytometry data collected from CTD stations in South Australia, in November 2021". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/saimos-biological-and-flow-cytometry-data-collected-from-ctd-stations-in-south-australia-i-20211