Eastern North Pacific gray whale calf production 1994-2022

Details

• Personal Author:
  Eguchi, Tomoharu ; Lang, Aimée R. ; Weller, David W.
• Corporate Authors:
  Southwest Fisheries Science Center (U.S.)
• NOAA Program & Office:
  NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center)
• Description:
  The analytical approach used to estimate total annual calf production remained consistent through the 2019 survey (see Weller and Perryman 2019). The annual survey was not conducted in 2020 due to COVID-19. In 2021, a new Bayesian modeling approach to estimate annual calf production of ENP gray whales was used by Stewart and Weller (2021a). This method accounted for uncertainty during unsampled periods (i.e., evenings, weekends and during periods of unworkable weather). Here we provide estimates of calf production for the 1994-2022 period using the Bayesian approach.
• Keywords:
  Estimates Gray Whale Infancy Marine Mammal Populations Gray Whale Marine Mammal Populations
• Series:
  NOAA technical memorandum NMFS-SWFSC   667
• DOI:
  https://doi.org/10.25923/4g6h-9129
• Document Type:
  Technical Memorandum
• Place as Subject:
  North Pacific Ocean
• Rights Information:
  Public Domain
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha256:2be2b827223a4d041218ef9980cbb91503791c6a9c9989930754916ddfef63fd
• Download URL:
  https://repository.library.noaa.gov/view/noaa/46436/noaa_46436_DS1.pdf
• File Type:
  [PDF - 781.40 KB ]