From CSIRO Marlin
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Tasmanian Slope Trophodynamics Study 1991-1993: Primary Productivity Data

Created 25/06/2025

Updated 25/06/2025

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

This record describes the primary productivity data collected as part of the 1991-1993 Tasmanian Slope Trophodynamics Study undertaken by CSIRO Division of Fisheries. Primary productivity measurements were taken on 4 cruises of FRV "Southern Surveyor" on three 60 km transects across the continental shelf to the south and south-east of Tasmania in July 1991 (cruise SS 02/91), February 1992 (cruise SS 01/92), November 1992 (cruise SS 04/92) and April 1993 (cruise SS 03/93). There were typically 5-6 primary productivity stations per transect per cruise. At each station, water samples were collected in Niskin bottles from 3 depths and primary productivity was determined using 14C incubation experiments at a range of 4 light intensities. An additional, mmore intensive experiment was conducted over a 24 hour period at one site using samples from 6 depths incubated at seven light intensities. From these data, P vs I (photosynthesis versus irradiance) parameters were calculated, in particular alpha (the slope of the P vs I curve) and P-max, the light-saturated rate of carbon fixation. These values were then used to model primary production in the water column on a diel, seasonal, and spatially varying basis.

Files and APIs

Additional Info

Field Value
Title Tasmanian Slope Trophodynamics Study 1991-1993: Primary Productivity Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/b6afa8a9-0945-4f15-9938-e69b54f10728
Contact Point
CSIRO Marlin Data Catalogue
data-requests-hf@csiro.au
Reference Period 01/07/1991 - 01/04/1993
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        145.9,
        -45.0
      ],
      [
        148.0,
        -45.0
      ],
      [
        148.0,
        -43.7
      ],
      [
        145.9,
        -43.7
      ],
      [
        145.9,
        -45.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "Tasmanian Slope Trophodynamics Study 1991-1993: Primary Productivity Data". Please visit the source to access the original metadata of the dataset:
https://marlin.csiro.au/geonetwork/srv/eng/csw/dataset/tasmanian-slope-trophodynamics-study-1991-1993-primary-productivity-data1