NEFSC Apex Predators Longline Survey (DE0407, EK500)

The fishery independent survey of Atlantic large and small coastal sharks is conducted bi-annually in U.S. waters. Its primary objective is to conduct a standardized, systematic survey of the shark populations off the U.S. Atlantic coast to provide unbiased indices of relative abundance for species inhabiting the waters from Florida to the Mid-Atlantic. This survey also provides an opportunity to tag sharks with conventional and electronic tags as part of the NEFSC Cooperative Shark Tagging Program, inject with OTC for age validation studies, and to collect biological samples and data used in analyses of life history characteristics (age, growth, reproductive biology, trophic ecology, etc.) and other research of sharks in U.S. coastal waters including the collection of morphometric data for size conversions. The time series of abundance indices from this survey is critical to the evaluation of coastal Atlantic shark species.
  • Cite as: Northeast Fisheries Science Center (2004): Water Column Sonar Data Collection (DE0407, EK500). National Centers for Environmental Information, NOAA. doi:10.7289/V5WS8R7C [access date]
gov.noaa.ngdc.mgg.wcd:DE0407_EK500
Search Data
Distribution Formats
  • Simrad EK500 data logged in .ek5 format (Version: 1)
    • File Specification: Simrad EK500 data logged with Echolog 500. These files contain EK500 data telegrams output by an EX500 on its Ethernet port. The .ek5 file contains binary Ethernet packets as output by the Simrad echosounder. The EK500 manual contains full details of the EK500 Ethernet telegram formats and should be consulted for interpreting the Ethernet packets recorded within an .ek5 file.
Ordering Instructions Contact the Water Column Sonar Data Manager to order data
Distributor Distributor information not available
Dataset Principal Investigator Lisa Natanson
Fisheries Biologist
NEFSC
401-782-3320
lisa.natanson@noaa.gov
Time Period 2004-04-27T00:00:00 to 2004-05-14T18:56:12
Spatial Bounding Box Coordinates
N: 32.4932857212352
S: 29.4174678957627
E: -78.0764656867184
W: -80.2520228290591
Spatial Coverage Map
Documentation links not available.
Publication Dates
  • creation: 2004-04-27
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Not planned
Purpose The primary objective is to conduct a standardized, systematic survey of the shark populations off the U.S. Atlantic coast to provide unbiased indices of relative abundance for species inhabiting the waters from Florida to the Mid-Atlantic.
Dataset Citation
  • Cite as: Northeast Fisheries Science Center (2004): Water Column Sonar Data Collection (DE0407, EK500). National Centers for Environmental Information, NOAA. doi:10.7289/V5WS8R7C [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
  • 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
  • GEOGRAPHIC REGION > GLOBAL
  • Vertical Location > VERTICAL LOCATION > SEA FLOOR
Keywords
    Use Constraints
    • Cite as: Northeast Fisheries Science Center (2004): Water Column Sonar Data Collection (DE0407, EK500). National Centers for Environmental Information, NOAA. doi:10.7289/V5WS8R7C [access date]
    Access Constraints
    • 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
    Platform
    • Delaware II (DE)
    Operation
    • DE0407_EK500
    Last Modified: 2017-05-30
    For questions about the information on this page, please email: wcd.info@noaa.gov