NEFSC 2016 Fall Bottom Trawl Survey (HB1604, EK60)

The NEFSC bottom trawl survey is a fisheries independent, multi-species survey that provides the primary scientific data for fisheries assessments in the U.S. mid-Atlantic and New England regions. Two bottom trawl surveys are conducted each year, one in the spring and one in the autumn. The survey is a standardized, stratified random design, with stratification based on bathymetry and multiple trawl sites within each stratum. Trawl sites are selected randomly, but the overall ship path is south to north. The survey covers the continental shelf and U.S. exclusive economic zone (EEZ) from Cape Hatteras, North Carolina into the Canadian EEZ. The primary gear is a bottom trawl, with CTD, multifrequency echosounder, and a host of other scientific sensor data collected ancillary to the bottom trawl catches.
  • Cite as: Northeast Fisheries Science Center (2016): Water Column Sonar Data Collection (HB1604, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5ST7N1G [access date]
gov.noaa.ngdc.mgg.wcd:HB1604_EK60
Search Data
Distribution Formats
  • Simrad EK60 raw (.raw) format (Version: 1)
    • File Specification: Simrad EK60 raw files. See the Simrad EK60 interface specification manual for additional information.
Ordering Instructions Contact the NCEI Water Column Sonar Data Manager to order data
Distributor Chuck Anderson
Water Column Sonar Data Manager
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-4742
wcd.info@noaa.gov
Dataset Principal Investigator John Galbraith
Chief Scientist
NEFSC
508-495-2000
john.galbraith@noaa.gov
Time Period 2016-09-01T01:23:31 to 2016-11-21T00:00:00
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates
N: 44.4309879890444
S: 34.3795863797797
E: -65.7335059537672
W: -76.0668326319367
Spatial Coverage Map
General Documentation
Associated Resources
    Publication Dates
    • creation: 2016-09-01
    Dataset Progress Status Complete - production of the data has been completed
    Data Update Frequency Not planned
    Purpose The NEFSC bottom trawl survey provides fisheries independent abundance and biological data for fisheries assessments along the U.S. east coast.
    Use Limitations
    • These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
    • Not subject to copyright protection within the United States.
    Dataset Citation
    • Cite as: Northeast Fisheries Science Center (2016): Water Column Sonar Data Collection (HB1604, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5ST7N1G [access date]
    Custodians
    • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    Resource Providers

    • DOC/NOAA/NMFS/NEFSC > Northeast Fisheries Science Center
    Points of Contact

    • DOC/NOAA/NMFS/NEFSC > Northeast Fisheries Science Center
    Publishers
    • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    Theme keywords Global Change Master Directory (GCMD) Science Keywords
    • Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering
    • Earth Science > Oceans > Aquatic Sciences > Fisheries
    • Earth Science > Oceans > Ocean Acoustics
    • Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic
    • Earth Science > Biosphere > Ecosystems > Marine Ecosystems
    • Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic
    • Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems
    • Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
    • Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
    Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
    • In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System
    Place keywords International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
    • North Atlantic Ocean
    Global Change Master Directory (GCMD) Location Keywords
    • Global
    • Vertical Location > Sea Floor
    Keywords
      Use Constraints
      • Cite as: Northeast Fisheries Science Center (2016): Water Column Sonar Data Collection (HB1604, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5ST7N1G [access date]
      Access Constraints
      • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
      • Resource may not be available for up to one year after initial collection.
      Fees
      • Free
      Lineage information for: collectionHardware
      Lineage Statement Calibrated w/ calibration data
      Lineage information for: series
      Processor
      • NEFSC
      Lineage information for: series
      Lineage Statement For some inexplicable reason, the 70, 120, and 200-kHz data were collected in passive mode for legs 1, 2, and 3. These frequencies were collected in active mode for legs 4 and 5. The 18 and 38-kHz data were collected in active mode throughout the cruise.
      Acquisition Information (collection)
      Instrument
      • Simrad EK60
      Operation
      • HB1604_EK60
      Last Modified: 2017-08-03
      For questions about the information on this page, please email: wcd.info@noaa.gov