Results of the Steller sea lion (Eumetopias jubatus ) surveys in Alaska, June–July 2025

Details

• Personal Author:
  Sweeney, Katie ; Birkemeier, Burlyn ; Gelatt, Tom
• Corporate Authors:
  Alaska Fisheries Science Center (U.S.) ; Marine Mammal Laboratory (U.S.) ; Cooperative Institute for Climate, Ocean, and Ecosystem Studies.
• NOAA Program & Office:
  NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) ; CICOES (Cooperative Institute for Climate, Ocean and Ecosystem Studies)
• Description:
  The Alaska Fisheries Science Center’s Marine Mammal Laboratory (MML) conducts annual crewed aircraft and vessel-based surveys of known terrestrial Steller sea lion (Eumetopias jubatus) rookery and haulout sites to collect visual counts and high-resolution imagery. In 2025, the crewed aircraft survey effort was cancelled because of budget limitations. The vessel-based team surveyed the endangered western distinct population segment (DPS) of Steller sea lions in the western and central Aleutian Islands regions.
• Keywords:
  Eumetopias Population Steller Survey Uncrewed
• Series:
  AFSC processed report   2025-12
• DOI:
  https://doi.org/10.25923/jw5p-cn43
• Format:
  pdf
• Document Type:
  Processed Report
• License:
  https://creativecommons.org/publicdomain/zero/1.0/
• Rights Information:
  CC0 Public Domain
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha-512:9908d64e628be467aa1cea7848534d7d8c615e1810b11c76f90d96f6005ae6e3b31f79ef03f28ea76ca018e03fd3a79a20b6f8853de888b3f0f5bab84d78e5ba
• Download URL:
  https://repository.library.noaa.gov/view/noaa/71562/noaa_71562_DS1.pdf
• File Type:
  [PDF - 2.48 MB ]