The 2018 Longline Survey of the Gulf of Alaska and Eastern Aleutian Islands on the FV Alaskan Leader: Cruise Report AL-18-01

Details

• Personal Author:
  Malecha, Patrick William ; Rodgveller, Cara J. ; Lunsford, Chris R. ; Siwicke, Kevin A.
• 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 (AFSC) has annually completed a bottom longline survey in Alaska since 1978. The survey samples demersal waters of the upper continental slope and is primarily designed to assess sablefish (Anoplopoma fimbria), although several other groundfish species are caught in significant numbers. In 2018, the 41st annual longline survey sampled stations in the eastern and central Aleutian Islands region and the Gulf of Alaska. The primary objectives of the survey were to determine the relative abundance of sablefish and other groundfish species from catch data, determine the age composition of the sablefish population with otolith collections, and to determine movement patterns of sablefish and a subsample of other groundfish species with tagging operations.
• Keywords:
  Catch Effort Composition Continental Slopes Cruise Report Fisheries Fish Tagging Groundfishes Longlining (Fisheries) Sablefish Species Surveys Catch Effort Continental Slopes Cruise Report Fish Tagging

  More +
• Series:
  AFSC processed report   2019-02
• DOI:
  https://doi.org/10.25923/3d63-r326
• Document Type:
  Technical Report
• Place as Subject:
  Alaska, Gulf of (Alaska) ; Aleutian Islands (Alaska)
• Rights Information:
  Public Domain
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha256:ab548ea585cf1eb1de871fea4ffc8b582c67c3adae3bc2ad1e5d1bad2054f410
• Download URL:
  https://repository.library.noaa.gov/view/noaa/19816/noaa_19816_DS1.pdf
• File Type:
  [PDF - 853.04 KB ]