NEFSC 2002 Winter Bottom Trawl Survey (AL0203, 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 (2002): Water Column Sonar Data Collection (AL0203, EK500). National Centers for Environmental Information, NOAA. doi:10.7289/V5668B5F [access date]
- AL0203_EK500
- doi:10.7289/V5668B5F
gov.noaa.ngdc.mgg.wcd:AL0203_EK500
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Ordering Instructions | Contact the Water Column Sonar Data Manager to order data |
Distributor | Water Column Sonar Data Manager NOAA National Centers for Environmental Information (303) 497-4742 wcd.info@noaa.gov |
Dataset Principal Investigator | John Galbraith Chief Scientist NEFSC 508-495-2000 john.galbraith@noaa.gov |
Time Period | 2002-02-02T20:35:39 to 2002-03-02T23:59:59 |
Spatial Reference System | urn:ogc:def:crs:EPSG:4326 |
Spatial Bounding Box Coordinates |
West:-76.2034733519114
East:-67.34081
South:35.33086
North:41.29383
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Documentation links not available. |
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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. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Instrument keywords | Global Change Master Directory (GCMD) Instrument Keywords
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Place keywords | International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas"
publication S-23)
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Lineage Statement | Data contain 38 and 120 kHz EK500 data. |
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Last Modified: 2017-05-30
For questions about the information on this page, please email:wcd.info@noaa.gov