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Northeast Fisheries Science Center Bottom Trawl Survey Data
Entry ID: NMFS_NFSC_Bottom_Trawl_Survey

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Abstract: This is the Northeast Fisheries Science Center Bottom Trawl Survey database for Northwest Atlantic marine organisms. Survey cruises use a bottom trawl to sample randomly selected stations in an attempt to delineate the species composition, geographic distribution, and abundance of various resources. Fish and selected invertebrate species are identified. Weight, length, total catch numbers, age ... View entire text

Purpose: The surveys are designed to provide information on the abundance, biology, and distribution of the living marine resources of the Northwest Atlantic and the environmental conditions affecting them for management purposes and to provide for broadscale ecosystems research.
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Geographic Coverage
Spatial coordinates   
  N: 44.87   S: 28.78   E: -63.33   W: -81.4

Data Set Citation
Dataset Originator/Creator: NOAA's National Marine Fisheries Service (NMFS) Northeast Fisheries Science Center
Dataset Title: Northeast Fisheries Science Center Bottom Trawl Survey Data
Dataset Release Date: 2005-04-30
Dataset Release Place: Woods Hole, Massachusetts, United States of America
Dataset Publisher: NOAA?s National Marine Fisheries Service (NMFS) Northeast Fisheries Science Center, Ecosystems Survey Branch
Data Presentation Form: Tabular Digital Data
Other Citation Details: Additional information can be found at
Online Resource:
Temporal Coverage
Start Date: 1948-07-14
Stop Date: 2008-11-08
SHIPS Ancillary Description
Quality Before March 2001, data were recorded on paper logs from electronic readouts and verbal instruction. Starting in March 2001, station data are recorded directly by use of sensors and electronic measuring and recording devices. These devices are used to record catch, length and weight data. Acoustic trawl monitoring system information on headrope height, wing spread, and bottom temperature is used ... View entire text
Access Constraints Request for the data may need approval from the NEFSC Center Director.
Use Constraints NMFS would appreciate recognition as the resource from which this data was obtained in any publications and/or representations of these data.
Ancillary Keywords
Data Set Progress
Distribution Media: Summary reports in paper documents; digital form preferred
Distribution Format: ASCII
Fees: Free
Azarovitz, Thomas R. 1981. A brief historical review of Woods Hole Laboratory trawl survey time series. In Bottom Trawl Surveys, W.G. Doubleday and D. Rivard (eds.), pp 62-67. Ottawa, Canada: Department of Fisheries and Oceans. Canadian Special Publication of the Fisheries and Aquatic Sciences 58: 1-273.

Byrne, C.J., T.R. Azarovitz and M.P. ... View entire text
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2009-04-14
Last DIF Revision Date: 2016-11-18
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