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    • AFSC/REFM: Acoustics from vessels of opportunity - EBS factory-trawlers

    Metadata Updated: October 2, 2025

    The dataset is comprised of acoustic data recorded from SIMRAD ES-60 and ES-70 echosounders on board commercial fishing vessels fishing walleye pollock in the Bering Sea, during the winter (January - April). This data collection began in 2002 and ended in 2017 with between 2 to 6 vessels collecting data annually. RAW data files store the acoustic return as well as GPS location, date, and time. OUT data files paired with the RAW data files store bottom depth as determined by a SIMRAD internal algorithm.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date September 24, 2025
    Metadata Created Date October 28, 2022
    Metadata Updated Date October 2, 2025
    Reference Date(s) (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NMFS AFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 24, 2025
    Metadata Created Date October 28, 2022
    Metadata Updated Date October 2, 2025
    Reference Date(s) (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:21677
    Access Constraints Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/REFM: Acoustics from vessels of opportunity - EBS factory-trawlers [Data Date Range], https://www.fisheries.noaa.gov/inport/item/21677., Access Constraints: The data set is still being analyzed and will not be available for distribution until it has been finalized and all QA/QC practices have been performed. Contact the Point Of Contact for estimated time of release., Use Constraints: The user must adhere to restrictions placed on publication of data by the Magnuson-Stevens Act as amended in 2006.
    Bbox East Long -160
    Bbox North Lat 63
    Bbox South Lat 54
    Bbox West Long -180
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id e6589d54-31e8-48de-ba36-cabbefdb27f6
    Harvest Source Id 26a29bb9-50b0-47fd-920b-edc74aa6ec76
    Harvest Source Title NMFS AFSC
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage See method in uploaded FGDC view.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, 54.0], [-160.0, 54.0], [-160.0, 63.0], [-180.0, 63.0], [-180.0, 54.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2002
    Temporal Extent End 2017

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