AFSC/RACE/SAP: Detailed Crab Data From NOAA Fisheries Service Annual Eastern Bering Sea Summer Bottom Trawl Surveys 1975 - 2018

Description

This dataset contains detailed crab data collected from the annual NOAA/NMFS/AFSC/RACE crab-groundfish bottom trawl survey of the eastern Bering Sea continental shelf. The standard survey area, surveyed each year since 1975, encompasses a major portion of the eastern Bering Sea shelf between the 20 meter and 200 meter isobaths and from the Alaska Peninsula to the north of St. Matthew Island. The study area is divided into a grid with cell sizes of 20 x 20 nautical miles (37 x 37 kilometers). Sampling takes place within each 20 x 20 nautical mile grid cell. In areas surrounding St. Matthew (1983-present) and the Pribilof Islands (1981-present), grid corners were also sampled to better assess king crab concentrations. In 1975, tows were 1 hour in duration; from 1976 to present, each tow is one-half hour in duration, averaging 1.54 nautical miles (2.86 kilometers) - exact tow duration and distance fished for each haul can be found in RACEBASE.HAUL. 100% of the catch is sorted for red, blue, and golden king crab, bairdi Tanner, snow crab, hybrid Tanner, and hair crab. 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

Name Format Description Link
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/17108
0 AKFSC Home Page https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center
33 AFSC Technical Memorandum summarizing results of the 2014 eastern Bering Sea trawl survey for commercially important crab species http://www.afsc.noaa.gov/Publications/AFSC-TM/NOAA-TM-AFSC-308.pdf
33 Listing of codes used for fish and invertebrates identified in RACE Division surveys. http://www.afsc.noaa.gov/RACE/groundfish/species_codebook.pdf
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/17108.pdf
8 Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/14/2021. Contact: Daniel.woodrich@noaa.gov https://console.cloud.google.com/storage/browser/_details/nmfs_odp_afsc/RACE/SAP/Detailed%20Crab%20Data%20From%20NOAA%20Fisheries%20Service%20Annual%20Eastern%20Bering%20Sea%20Summer%20Bottom%20Trawl%20Surveys%201975%20-%202018.csv
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/17108
0 AKFSC Home Page https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center
33 AFSC Technical Memorandum summarizing results of the 2014 eastern Bering Sea trawl survey for commercially important crab species https://www.afsc.noaa.gov/Publications/AFSC-TM/NOAA-TM-AFSC-308.pdf
33 Listing of codes used for fish and invertebrates identified in RACE Division surveys. https://www.afsc.noaa.gov/RACE/groundfish/species_codebook.pdf
0 Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/17108.pdf
8 Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/14/2021. Contact: Daniel.woodrich@noaa.gov https://console.cloud.google.com/storage/browser/_details/nmfs_odp_afsc/RACE/SAP/Detailed%20Crab%20Data%20From%20NOAA%20Fisheries%20Service%20Annual%20Eastern%20Bering%20Sea%20Summer%20Bottom%20Trawl%20Surveys%201975%20-%202018.csv

Tags

  • alaska fisheries science center
  • alaska
  • norton sound
  • noaa
  • summer
  • shellfish assessment program
  • u.s. department of commerce
  • national marine fisheries service
  • doc/noaa/nmfs/afsc
  • bering sea
  • chukchi sea

Topics

Categories