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

Becker, Elizabeth A.; Forney, Karin A.; Miller, David L.; Fiedler, Paul C.; Barlow, Jay; Moore, Jeff E.

doi:10.25923/3znq-yx13

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

2020
By Becker, Elizabeth A. ; Forney, Karin A. ; Miller, David L. ; ...
Series: NOAA Technical Memorandum NMFS-SWFSC ; 638

[PDF-4.89 MB]

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Personal Author:

Becker, Elizabeth A. ; Forney, Karin A. ; Miller, David L. ; Fiedler, Paul C. ; Barlow, Jay ; ... More +

Becker, Elizabeth A. ; Forney, Karin A. ; Miller, David L. ; Fiedler, Paul C. ; Barlow, Jay ; Moore, Jeff E. Less -
Corporate Authors:

United States. National Marine Fisheries Service ; Southwest Fisheries Science Center (U.S.)

United States. National Marine Fisheries Service ; Southwest Fisheries Science Center (U.S.) Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) Less -
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
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

California ; North Pacific Ocean Less -
Rights Information:

Public Domain
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Submitted
Main Document Checksum:

[+]

urn:sha256:42b852e8e2a2f3ba31417f48d8eaddd18d8e29fdaf69a5b924af49c5c0fbdfcb
Download URL:

https://repository.library.noaa.gov/view/noaa/27826/noaa_27826_DS1.pdf
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Habitat-based density estimates for cetaceans in the California Current Ecosystem based on 1991-2018 survey data

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