Results of the Steller sea lion surveys in Alaska, June–July 2022

Sweeney, K. L.; Birkemeier, B.; Luxa, K.; Gelatt, T.

doi:10.25923/vsdy-9c87

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Results of the Steller sea lion surveys in Alaska, June–July 2022

2023
By Sweeney, K. L. ; Birkemeier, B. ; Luxa, K. ; ...
Series: AFSC processed report ; 2023-02

[PDF-2.42 MB]

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Details:

Alternative Title:

Results of the Steller sea lion (Eumetopias jubatus) surveys in Alaska, June–July 2022
Personal Author:

Sweeney, K. L. ; Birkemeier, B. ; Luxa, K. ; Gelatt, T.

Sweeney, K. L. ; Birkemeier, B. ; Luxa, K. ; Gelatt, T. Less -
Corporate Authors:

Alaska Fisheries Science Center (U.S.)
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) Less -
Description:

The Alaska Fisheries Science Center’s Marine Mammal Laboratory (MML) conducts annual aerial-, boat-, and land-based surveys at known terrestrial rookery and haulout sites in Alaska to collect visual counts and high-resolution imagery from which Steller sea lions are counted. In 2022, MML survey teams collected counts from 97 sites in the Aleutian Islands regions and one site in the western Gulf of Alaska region. We used a newly updated agTrend model that is more precise to model all raw count data through 2022 to estimate counts (as an index of abundance) and annual rates of change.
Keywords:

[+]

Aleutians Gulf Of Alaska Pup Samalga Steller Survey
Series:

AFSC processed report ; 2023-02
DOI:

https://doi.org/10.25923/vsdy-9c87
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:sha256:3dd6e0bb5619f79dca0c4ad588cf542f3b20a000aeaf3047831726511e17634d
Download URL:

https://repository.library.noaa.gov/view/noaa/49952/noaa_49952_DS1.pdf
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Results of the Steller sea lion surveys in Alaska, June–July 2022

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