Data

RV Investigator Voyage IN2025_V04 EK80 Echosounder

Australian Ocean Data Network
CSIRO (Associated with) CSIRO NCMI (Associated with) CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with) Data Officer (CN), Hobart (Processor of)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://140.79.20.100:8080/geonetwork/srv/eng/catalog.search#/metadata/ff887cf9-18bb-464e-8bad-5dc6e0ad946b&rft.title=RV Investigator Voyage IN2025_V04 EK80 Echosounder&rft.identifier=a3e19bf0-388a-4abe-866a-371a11dfe0a4&rft.publisher=Australian Ocean Data Network&rft.description=This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2025_V04, titled Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV. The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart.The Simrad EK80 split beam echosounders for 18, 38, 70 120, and 200 kHz were used to acquire acoustic backscatter data to a range of up to1500 m, between Hobart and Eden. Logging range was changed throughout the voyage based on depth. The 18, 38, 70 120, and 200 kHz frequencies were logged continuously for the extent of the voyage. The 333 kHz was set to passive for the duration of the voyage due to a known issue with the transducer.Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 1,164 files totalling 112 GB of raw data in this dataset.No processing has been conducted on this data.Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.Maintenance and Update Frequency: asNeededStatement: Original field data.&rft.creator=Anonymous&rft.date=2025&rft.coverage=westlimit=147.339; southlimit=-36.5277; eastlimit=150.3939; northlimit=-43.3202; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=147.339; southlimit=-36.5277; eastlimit=150.3939; northlimit=-43.3202; projection=WGS 84 (EPSG:4326)&rft_rights=Attribution 4.0 https://creativecommons.org/licenses/by/4.0/&rft_rights=&rft_rights=Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: “We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research.” The dataset RV Investigator Voyage IN2025_V04 EK80 Echosounder downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage IN2025_V04 by the Marine National Facility.&rft_subject=oceans&rft_subject=Ship: Investigator (RV)&rft_subject=Marine National Facility&rft_subject=Research Voyage: IN2025_V04&rft_subject=Earth Science | Oceans | Ocean Acoustics&rft_subject=Marine Features (Australia) | Derwent Estuary, TAS&rft_subject=Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS&rft_subject=Marine Features (Australia) | Bass Strait, TAS/VIC&rft_subject=Coastal Waters (Australia) | Victoria Coast, VIC&rft_subject=Coastal Waters (Australia) | New South Wales Coast, NSW&rft_subject=Fisheries echosounder - EK80&rft_subject=Abundance of biota&rft_subject=Biovolume&rft_subject=research vessel&rft_subject=Fish-finder echosounders&rft.type=dataset&rft.language=English Access the data
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CC-BY

Attribution 4.0
https://creativecommons.org/licenses/by/4.0/

Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: “We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research.” The dataset RV Investigator Voyage IN2025_V04 EK80 Echosounder downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage IN2025_V04 by the Marine National Facility.

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Full description

This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2025_V04, titled "Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV." The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart.

The Simrad EK80 split beam echosounders for 18, 38, 70 120, and 200 kHz were used to acquire acoustic backscatter data to a range of up to1500 m, between Hobart and Eden. Logging range was changed throughout the voyage based on depth. The 18, 38, 70 120, and 200 kHz frequencies were logged continuously for the extent of the voyage. The 333 kHz was set to passive for the duration of the voyage due to a known issue with the transducer.
Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 1,164 files totalling 112 GB of raw data in this dataset.

No processing has been conducted on this data.

Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

Lineage

Maintenance and Update Frequency: asNeeded
Statement: Original field data.

Notes

Credit
Data collected on the Marine National Facility (MNF) RV Investigator voyage IN2025_V04. The MNF must be acknowledged in all outputs derived from Data and/or Samples collected by, or with support from, the MNF. Acknowledge the MNF in outputs with the statement: “We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research.” Acknowledgment and citations should be in all forms of publication including presentations (where the acknowledgement should be on the closing slide), journals, books, reports and related research outputs.

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150.3939,-43.3202 150.3939,-36.5277 147.339,-36.5277 147.339,-43.3202 150.3939,-43.3202

148.86645,-39.92395

text: westlimit=147.339; southlimit=-36.5277; eastlimit=150.3939; northlimit=-43.3202; projection=WGS 84 (EPSG:4326)

Subjects
Abundance of biota | Biovolume | Coastal Waters (Australia) | New South Wales Coast, NSW | Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS | Coastal Waters (Australia) | Victoria Coast, VIC | Earth Science | Oceans | Ocean Acoustics | Fish-finder echosounders | Fisheries echosounder - EK80 | Marine Features (Australia) | Bass Strait, TAS/VIC | Marine Features (Australia) | Derwent Estuary, TAS | Marine National Facility | Research Voyage: IN2025_V04 | Ship: Investigator (RV) | oceans | research vessel |

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Other Information
Geophysical Survey and Mapping website information for this data set and link to downloading data. (Geophysical Survey and Mapping website information for this data set)

url : https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2025_V04&instrument=EK80

RV Investigator survey information

url : https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2025_V04

Marine National Facility home page (MNF home page)

url : https://mnf.csiro.au/

Link to the CSIRO Data Access Portal (Data Access Portal)

url : https://data.csiro.au/dap/

Link to visualisation tool for Near Real-Time Underway Data (NRUD) (Underway Visualisation Tool)

url : http://www.marine.csiro.au/data/underway/?survey=IN2025_V04

Identifiers
  • global : a3e19bf0-388a-4abe-866a-371a11dfe0a4