Results of the 2022 eastern and northern Bering Sea continental shelf bottom trawl survey of groundfish and invertebrate fauna

Details

• Personal Author:
  Markowitz, E. H ; Dawson, E. J. ; Anderson, C. B. ; Rohan, S. K. ; Charriere, N. E. ; Prohaska, B. K. ; Stevenson, D. E.
• Conference Authors:
  Alaska Fisheries Science Center (U.S.)
• NOAA Program & Office:
  NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center)
• Description:
  In 2022, the Resource Assessment and Conservation Engineering (RACE) Division of the National Marine Fisheries Service’s (NMFS) Alaska Fisheries Science Center (AFSC) conducted the 40th eastern Bering Sea (EBS) Crab/Groundfish Bottom Trawl Survey and 5th northern Bering Sea (NBS) Crab/Groundfish Bottom Trawl Survey. The survey covered the eastern Bering Sea continental shelf (bottom depths between approximately 20 and 200 m) from the Alaska mainland coast to the U.S.-Russia Maritime Boundary between the Alaska Peninsula and the Bering Strait. Survey sampling was conducted using two chartered commercial stern trawlers, the 43.9-m FV Alaska Knight and 37.8-m FV Vesteraalen. Demersal populations of fishes and invertebrates were sampled by trawling for 30 minutes at stations arranged on a systematic grid, which consisted of 376 total stations in the EBS and 144 total stations in the NBS. At each station, species composition, sex, length-frequency composition, and age structure samples were collected from ecologically and commercially important fish species.
• Keywords:
  Results of the 2022 eastern and northern Bering Sea continental shelf bottom trawl survey of groundfish and invertebrate fauna Alaska Peninsula Bering Strait Biomass Bottom Trawl Distribution Station Survey
• Series:
  NOAA technical memorandum NMFS-AFSC   469
• DOI:
  https://doi.org/10.25923/rt50-th19
• Format:
  PDF
• Document Type:
  Technical Memorandum
• Name as Subject:
  In 2022, the Resource Assessment and Conservation Engineering (RACE) Division of the National Marine Fisheries Service’s (NMFS) Alaska Fisheries Science Center (AFSC) conducted the 40th eastern Bering Sea (EBS) Crab/Groundfish Bottom Trawl Survey and 5th northern Bering Sea (NBS) Crab/Groundfish Bottom Trawl Survey. The survey covered the eastern Bering Sea continental shelf (bottom depths between approximately 20 and 200 m) from the Alaska mainland coast to the U.S.-Russia Maritime Boundary between the Alaska Peninsula and the Bering Strait. Survey sampling was conducted using two chartered commercial stern trawlers, the 43.9-m FV Alaska Knight and 37.8-m FV Vesteraalen. Demersal populations of fishes and invertebrates were sampled by trawling for 30 minutes at stations arranged on a systematic grid, which consisted of 376 total stations in the EBS and 144 total stations in the NBS. At each station, species composition, sex, length-frequency composition, and age structure samples were collected from ecologically and commercially important fish species. ; In 2022, the Resource Assessment and Conservation Engineering (RACE) Division of the National Marine Fisheries Service’s (NMFS) Alaska Fisheries Science Center (AFSC) conducted the 40th eastern Bering Sea (EBS) Crab/Groundfish Bottom Trawl Survey and 5th northern Bering Sea (NBS) Crab/Groundfish Bottom Trawl Survey. The survey covered the eastern Bering Sea continental shelf (bottom depths between approximately 20 and 200 m) from the Alaska mainland coast to the U.S.-Russia Maritime Boundary between the Alaska Peninsula and the Bering Strait. Survey sampling was conducted using two chartered commercial stern trawlers, the 43.9-m FV Alaska Knight and 37.8-m FV Vesteraalen. Demersal populations of fishes and invertebrates were sampled by trawling for 30 minutes at stations arranged on a systematic grid, which consisted of 376 total stations in the EBS and 144 total stations in the NBS. At each station, species composition, sex, length-frequency composition, and age structure samples were collected from ecologically and commercially important fish species.
• License:
  https://creativecommons.org/publicdomain/zero/1.0/
• Rights Information:
  CC0 Public Domain
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha-512:1588ccc02ce0d18d7cb08386c23945cb3bcde48d1ebd90c05b04a2b0a447438dc45ac021403ae4357a24d990d3dcb6867a948eef348131809e8bb40c43d3ee4a
• Download URL:
  https://repository.library.noaa.gov/view/noaa/50154/noaa_50154_DS1.pdf
• File Type:
  [PDF - 14.31 MB ]