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Southern Surveyor Voyage SS 03/99 St Helens Hill Orange Roughy Acoustic Survey 1999

Created 25/06/2025

Updated 25/06/2025

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Acoustic biomass surveys of orange roughy at St Helens Hill and St Patricks head, off Tasmania East coast, collected during Southern Surveyour voyage SS 03/99 during July-August 1999. Acoustic system comprised a Simrad EK500 single beam vertical acoustic echosounder connected to either vessel mounted transducers or transducers housed in a deep towed body. Additional acoustic data was collected with an Echolistener digitising unit connected across the Southern Surveyor's installed 28kHz commercial fisheries sounder. The deep towed body could be operate at multi-frequcies (12, 38 and 120 kHz) to enable discrimination between orange roughy and bycatch species. In-situ measures of orange roughy target strength were made using the deep towed acoustic system. Related datasets from this survey include Bottom sled; CTD; Deep tow video transects; Midoc Midwater trawl; Echolistener data from catcher vessel FV Saxon Progress's echosounder; and Demersal trawl data from catcher vessel FV Saxon Progress.

Files and APIs

Additional Info

Field Value
Title Southern Surveyor Voyage SS 03/99 St Helens Hill Orange Roughy Acoustic Survey 1999
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/a2cb7d09-16ac-46ff-8379-62aaccb3464d
Contact Point
CSIRO Marlin Data Catalogue
Tim.Ryan@csiro.au
Reference Period 15/07/1999 - 02/08/1999
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.365,
        -43.333
      ],
      [
        149.0,
        -43.333
      ],
      [
        149.0,
        -41.353
      ],
      [
        147.365,
        -41.353
      ],
      [
        147.365,
        -43.333
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "Southern Surveyor Voyage SS 03/99 St Helens Hill Orange Roughy Acoustic Survey 1999". Please visit the source to access the original metadata of the dataset:
https://marlin.csiro.au/geonetwork/srv/eng/csw/dataset/southern-surveyor-voyage-ss-03-99-st-helens-hill-orange-roughy-acoustic-survey-1999