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West Coast Groundfish Bottom Trawl Survey Data - 2020 West Coast Groundfish Bottom Trawl Survey and indices of abundance

Published by Northwest Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 14, 2026 at 07:20 AM | Dataset Last Updated: January 24, 2017 at 12:00 AM
The Fisheries Research Survey team proposes to conduct the West Coast Groundfish Bottom Trawl Survey from May to October 2019. The goal of the survey is to ensure the sustainability of marine fisheries with a focus on ending overfishing. The groundfish fishery supports management for 90+ commercially fished stocks off Washington, Oregon, and California and is the primary source of fishery-independent data necessary for stock assessments of managed groundfish species inhabiting trawlable habitat along the upper continental slope and shelf. The survey provides data on abundance, spatial distributions, sex, length, maturity, weight, and age structure of groundfish in trawlable habitats. The survey also collects key environmental data (temperature, depth, dissolved oxygen, turbidity, in vivo fluorescence, irradiance, wind speed, location) in association with each tow for use in ecosystem based fisheries management. This data set contains information on date, time, vessel, trawl identification (i.e. unique number), trawl performance, location, depth, area swept, trawl duration, temperature, species, haul weight, average individual weight, sex, length, length method, fish age and age structure.

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Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
                                            {
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  "hasEmail": "mailto:datagovsupport@gsa.gov"
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describedByType application/octet-steam
description The Fisheries Research Survey team proposes to conduct the West Coast Groundfish Bottom Trawl Survey from May to October 2019. The goal of the survey is to ensure the sustainability of marine fisheries with a focus on ending overfishing. The groundfish fishery supports management for 90+ commercially fished stocks off Washington, Oregon, and California and is the primary source of fishery-independent data necessary for stock assessments of managed groundfish species inhabiting trawlable habitat along the upper continental slope and shelf. The survey provides data on abundance, spatial distributions, sex, length, maturity, weight, and age structure of groundfish in trawlable habitats. The survey also collects key environmental data (temperature, depth, dissolved oxygen, turbidity, in vivo fluorescence, irradiance, wind speed, location) in association with each tow for use in ecosystem based fisheries management. This data set contains information on date, time, vessel, trawl identification (i.e. unique number), trawl performance, location, depth, area swept, trawl duration, temperature, species, haul weight, average individual weight, sex, length, length method, fish age and age structure.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Trawl Haul Characteristics",
    "accessURL": "https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/tables/table/trawl_haul_characteristics",
    "mediaType": "text/html",
    "description": "Operation details including dates, times, location, depths, tempuratures, etc",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Trawl Haul Characteristics (RESTful)",
    "format": "JSON",
    "mediaType": "application/json",
    "description": "Operation details including dates, times, location, depths, tempuratures, etc",
    "downloadURL": "https://www.nwfsc.noaa.gov/data/api/v1/source/trawl.operation_haul_fact/selection.json",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Trawl Specimens",
    "accessURL": "https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/tables/table/trawl_specimens",
    "mediaType": "text/html",
    "description": "Individuals caught and measured on the bottom trawl survey",
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  },
  {
    "@type": "dcat:Distribution",
    "title": "Trawl Specimens (RESTful)",
    "format": "JSON",
    "mediaType": "application/json",
    "description": "Individuals caught and measured on the bottom trawl survey",
    "downloadURL": "https://www.nwfsc.noaa.gov/data/api/v1/source/trawl.individual_fact/selection.json",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Trawl Catch",
    "accessURL": "https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/tables/table/trawl_catch",
    "mediaType": "text/html",
    "description": "Catch data from bottom trawl survey",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Trawl Catch (RESTful)",
    "format": "JSON",
    "mediaType": "application/json",
    "description": "Catch data from bottom trawl survey",
    "downloadURL": "https://www.nwfsc.noaa.gov/data/api/v1/source/trawl.catch_fact/selection.json",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
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  },
  {
    "@type": "dcat:Distribution",
    "title": "Full Metadata Record",
    "accessURL": "https://www.fisheries.noaa.gov/inport/item/18418",
    "mediaType": "text/html",
    "description": "View the complete metadata record on InPort for more information about this dataset.",
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identifier https://data.noaa.gov/waf/NOAA/nmfs/nwfsc/iso/xml/18418.xml
issued 1998-04-01T00:00:00.000+00:00
keyword 
                                            [
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON",
  "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
  "demersal fish",
  "fishery independent",
  "groundfish survey",
  "Hatfield Marine Science Center",
  "Northern California Current System",
  "Northwest Fisheries Science Center",
  "Anemometer",
  "Bottom Contact Sensor",
  "CTD",
  "Depth-Temperature Sensor",
  "Net Mensuration",
  "Satellite Compass",
  "Temperature Sensor",
  "Bottom Sampler",
  "DOC/NOAA/NMFS/NWFSC > Northwest Fisheries Science Center, National Marine Fisheries Service, NOAA. U.S. Department of Commerce",
  "FRAM (Fishery Resource Analysis and Monitoring) Division"
]
landingPage https://www.fisheries.noaa.gov/inport/item/18418
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2017-01-24T00:00:00.000+00:00
publisher 
                                            {
  "name": "Northwest Fisheries Science Center",
  "@type": "org:Organization"
}
rights otherRestrictions, unclassified
spatial -122.3062,44.6229,-124.0472,47.6449
temporal 1998-04-01T00:00:00+00:00/1998-04-01T00:00:00+00:00
title West Coast Groundfish Bottom Trawl Survey Data - 2020 West Coast Groundfish Bottom Trawl Survey and indices of abundance

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