The 2020 longline survey of the Gulf of Alaska and eastern Aleutian Islands on the FV Alaskan Leader: Cruise Report AL-20-01

Details

• Personal Author:
  Siwicke, K. ; Malecha, P. ; Rodgveller, C.
• Corporate Authors:
  United States. National Marine Fisheries Service ; Alaska Fisheries Science Center (U.S.) ; Auke Bay Laboratories (Juneau, Alaska)
• NOAA Program & Office:
  NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center)
• Description:
  The Alaska Fisheries Science Center has annually conducted a bottom longline survey in Alaska since 1988. The survey samples demersal waters of the upper continental slope and is primarily designed to assess the sablefish (Anoplopoma fimbria) stock, although several other groundfish species are caught and enumerated. In 2020, the 43rd annual longline survey sampled stations in the eastern Aleutian Islands region and the Gulf of Alaska. The primary objectives of the survey were to determine 1) the relative abundance of groundfish species through a standardized longline survey, 2) the age composition of sablefish through otolith collection, and 3) the movement patterns of selected groundfish species through a tag and release program.
• Keywords:
  Fish Stock Assessment Groundfish Longlining (Fisheries) Fish Stock Assessment
• Series:
  AFSC processed report   2021-02
• DOI:
  https://doi.org/10.25923/zed3-zw98
• Document Type:
  Processed Report
• Place as Subject:
  Alaska, Gulf of (Alaska) ; Aleutian Islands (Alaska) ; North Pacific Ocean
• Rights Information:
  Public Domain
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha256:6dffefee4ef9198f6a25bfedd3febfca5489b7ea396b5c7a210bae4d8c972995
• Download URL:
  https://repository.library.noaa.gov/view/noaa/28911/noaa_28911_DS1.pdf
• File Type:
  [PDF - 1.10 MB ]