Habitat-based density estimates for cetaceans in the California Current Ecosystem based on 1991-2018 survey data

Details

• Personal Author:
  Becker, Elizabeth A. ; Forney, Karin A. ; Miller, David L. ; Fiedler, Paul C. ; Barlow, Jay ; Moore, Jeff E.
• Corporate Authors:
  United States. National Marine Fisheries Service ; Southwest Fisheries Science Center (U.S.)
• NOAA Program & Office:
  NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center)
• Description:
  The 2018 California Current Ecosystem Survey (CCES) was conducted between 26 June and 4 December 2018 as a joint project of the Marine Mammal and Turtle Division (MMTD) and the Fisheries Resources Division (FRD) of NOAA’s Southwest Fisheries Science Center (SWFSC). One of the primary objectives of this line-transect survey was to collect marine mammal sighting data to support the derivation of cetacean density estimates for the California Current Ecosystem (CCE) study area. Given the heterogeneity of the 2018 survey coverage in the CCE study area (Henry et al. 2020), density estimation required model-based (rather than design-based) analytical approaches for updating population size estimates for US West Coast marine mammal stocks. This report summarizes the results of the cetacean habitat modeling effort.
• Keywords:
  Animal Population Density California Current Cetacea Populations Estimates Animal Population Density Cetacea Populations
• Series:
  NOAA Technical Memorandum NMFS-SWFSC   638
• DOI:
  https://doi.org/10.25923/3znq-yx13
• Document Type:
  Technical Memorandum
• Place as Subject:
  California ; North Pacific Ocean
• Rights Information:
  Public Domain
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha256:42b852e8e2a2f3ba31417f48d8eaddd18d8e29fdaf69a5b924af49c5c0fbdfcb
• Download URL:
  https://repository.library.noaa.gov/view/noaa/27826/noaa_27826_DS1.pdf
• File Type:
  [PDF - 4.89 MB ]