Abundance of belugas (Delphinapterus leucas) in Cook Inlet, Alaska, June 2021 and June 2022

Goetz, K. T.; Shelden, K. E. W.; Sims, C. L.; Waite, J. M.; Wade, P. R.

doi:10.25923/g4bk-6x79

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Abundance of belugas (Delphinapterus leucas) in Cook Inlet, Alaska, June 2021 and June 2022

2023
By Goetz, K. T. ; Shelden, K. E. W. ; Sims, C. L. ; ...
Series: AFSC processed report ; 2023-03

[PDF-4.79 MB]

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Personal Author:

Goetz, K. T. ; Shelden, K. E. W. ; Sims, C. L. ; Waite, J. M. ; Wade, P. R.

Goetz, K. T. ; Shelden, K. E. W. ; Sims, C. L. ; Waite, J. M. ; Wade, P. R. Less -
Corporate Authors:

Alaska Fisheries Science Center (U.S.). ; Marine Mammal Laboratory (U.S.). ; Cooperative Institute for Climate, Ocean, & Ecosystem Studies

Alaska Fisheries Science Center (U.S.). ; Marine Mammal Laboratory (U.S.). ; Cooperative Institute for Climate, Ocean, & Ecosystem Studies Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) ; CICOES (Cooperative Institute for Climate, Ocean and Ecosystem Studies)

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) ; CICOES (Cooperative Institute for Climate, Ocean and Ecosystem Studies) Less -
Description:

The National Marine Fisheries Service (NMFS) has conducted aerial surveys to estimate the abundance of the beluga population in Cook Inlet, Alaska, between late May and early July from 1993 to 2012, after which biennial surveys during the even years began in 2014. However, the survey scheduled for 2020 was postponed until 2021 due to Covid-19, leading to consecutive surveys in 2021 and 2022. The current document presents abundance estimates and the population trend based on video and counting passes collected during late June 2021 and early June 2022 using analytical methods developed by Boyd et al. (2019).
Keywords:

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Abundance Beluga Cook Inlet Estimates Population
Series:

AFSC processed report ; 2023-03
DOI:

https://doi.org/10.25923/g4bk-6x79
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PDF
Document Type:

Processed Report
License:

https://creativecommons.org/publicdomain/zero/1.0/
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CC0 Public Domain
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Submitted
Main Document Checksum:

[+]

urn:sha256:3596b887927ef50b073a4c7bb0fc97855bf966f663ed6932b70647dd08742af7
Download URL:

https://repository.library.noaa.gov/view/noaa/50839/noaa_50839_DS1.pdf
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Abundance of belugas (Delphinapterus leucas) in Cook Inlet, Alaska, June 2021 and June 2022

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