AFSC/RACE/SAP: Detailed Crab Data From NOAA Fisheries Service 2012 Chukchi Sea Bottom Trawl Surveys
This dataset contains detailed crab data collected from the 2012 NOAA/NMFS/AFSC/RACE crab-groundfish bottom trawl survey of the Chukchi Sea. 71 survey stations were successfully completed during the bottom trawl survey. The survey area extended north and east from the Bering Strait to Barrow Canyon, bounded to the west by the U.S.-Russia Maritime Boundary and east to the 10-m bathymetry limit along the Alaska coastline. Demersal populations were sampled by trawling at stations centered within 55.56 x 55.56 km (30 x 30 nautical miles) grid cells covering the survey area. 100% of the catch is sorted for commercially important crab species. Crabs are sorted by species and sex, and a sample is measured to the nearest millimeter to provide a size-frequency distribution (see note under use constraints for analyzing catches where crab were subsampled for measurement). Carapace width is measured for Tanner crabs, and carapace length is measured for king and hair crabs.
Resources
4 resources available
-
https://www.afsc.noaa.gov/Publications/AFSC-TM/NOAA-TM-AFSC-278.pdf
PDF -
https://www.afsc.noaa.gov/RACE/groundfish/species_codebook.pdf
PDF -
GCMD Keyword Forum Page
TEXT/HTML -
Full Metadata Record
TEXT/HTML
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{ "fn": "Foy, Robert", "@type": "vcard:Contact", "hasEmail": "mailto:robert.foy@noaa.gov" } |
| describedByType | application/octet-steam |
| description | This dataset contains detailed crab data collected from the 2012 NOAA/NMFS/AFSC/RACE crab-groundfish bottom trawl survey of the Chukchi Sea. 71 survey stations were successfully completed during the bottom trawl survey. The survey area extended north and east from the Bering Strait to Barrow Canyon, bounded to the west by the U.S.-Russia Maritime Boundary and east to the 10-m bathymetry limit along the Alaska coastline. Demersal populations were sampled by trawling at stations centered within 55.56 x 55.56 km (30 x 30 nautical miles) grid cells covering the survey area. 100% of the catch is sorted for commercially important crab species. Crabs are sorted by species and sex, and a sample is measured to the nearest millimeter to provide a size-frequency distribution (see note under use constraints for analyzing catches where crab were subsampled for measurement). Carapace width is measured for Tanner crabs, and carapace length is measured for king and hair crabs. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "https://www.afsc.noaa.gov/Publications/AFSC-TM/NOAA-TM-AFSC-278.pdf", "format": "PDF", "mediaType": "application/pdf", "description": "AFSC Technical Memorandum summarizing results of the 2012 Chukchi Sea bottom trawl survey of bottomfishes, crabs, and other demersal macrofauna", "downloadURL": "https://www.afsc.noaa.gov/Publications/AFSC-TM/NOAA-TM-AFSC-278.pdf", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "https://www.afsc.noaa.gov/RACE/groundfish/species_codebook.pdf", "format": "PDF", "mediaType": "application/pdf", "description": "Listing of codes used for fish and invertebrates identified in RACE Division surveys", "downloadURL": "https://www.afsc.noaa.gov/RACE/groundfish/species_codebook.pdf", "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). 2026. GCMD Keywords, Version 24. 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", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Full Metadata Record", "accessURL": "https://www.fisheries.noaa.gov/inport/item/23470", "mediaType": "text/html", "description": "View the complete metadata record on InPort for more information about this dataset.", "describedByType": "application/octet-stream" } ] |
| identifier | https://data.noaa.gov/waf/NOAA/nmfs/afsc/iso/xml/23470.xml |
| keyword |
[ "fall", "summer", "Alaska", "Chukchi Sea", "DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce", "Shellfish Assessment Program" ] |
| landingPage | https://www.fisheries.noaa.gov/inport/item/23470 |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2026-04-30T00:00:00.000+00:00 |
| publisher |
{ "name": "Alaska Fisheries Science Center", "@type": "org:Organization" } |
| rights | otherRestrictions, unclassified |
| spatial | -157.17,66.0,-168.58,73.05 |
| temporal | 2012-08-01T00:00:00+00:00/2012-09-01T00:00:00+00:00 |
| theme |
[ "geospatial" ] |
| title | AFSC/RACE/SAP: Detailed Crab Data From NOAA Fisheries Service 2012 Chukchi Sea Bottom Trawl Surveys |
