NEFSC 2000 Fall Bottom Trawl Survey (Al0006, EK500)

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 (2000): Water Column Sonar Data Collection (AL0006, EK500). National Centers for Environmental Information, NOAA. doi:10.7289/V5VX0DJ9 [access date]
gov.noaa.ngdc.mgg.wcd:AL0006_EK500
Search Data
Distribution Formats
  • Simrad EK500 data logged with BI500 system (Version: 1)
    • File Specification: Older Simrad EK500 data logged with the BI500 software. Data in multiple files with -Data, -Ping, -Info, -Vlog, -Snap, or -Work at the end of file name.
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 2000-08-31T14:19:55 to 2000-10-21T10:38:56
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates
N: 44.278
S: 35.0875
E: -65.80379
W: -76.00616
Spatial Coverage Map
Documentation links not available.
Publication Dates
  • creation: 2000-08-31
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 (2000): Water Column Sonar Data Collection (AL0006, EK500). National Centers for Environmental Information, NOAA. doi:10.7289/V5VX0DJ9 [access date]
Resource Providers
  • Dataset contact information not available
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
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce
Instrument keywords
  • In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System
Place keywords
  • North Atlantic Ocean
  • GEOGRAPHIC REGION > GLOBAL
  • Vertical Location > VERTICAL LOCATION > SEA FLOOR
Use Constraints
  • Cite as: Northeast Fisheries Science Center (2000): Water Column Sonar Data Collection (AL0006, EK500). National Centers for Environmental Information, NOAA. doi:10.7289/V5VX0DJ9 [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 Uncalibrated
Lineage information for: series
Processor
  • NEFSC
Lineage information for: series
Lineage Statement
Acquisition Information (collection)
Instrument
  • Simrad EK500
  • Simrad EK60
Platform
  • Albatross IV (AL)
Operation
  • AL0006_Leg02
Last Modified: 2017-05-30
For questions about the information on this page, please email: wcd.info@noaa.gov