A flexible approach to optimizing the Gulf of Alaska groundfish bottom trawl survey design for abundance estimation

Oyafuso, Z.S.; Barnett, L.A.K.; Siple, M.C.; Kotwicki, S.

doi:10.25923/g5zd-be29

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A flexible approach to optimizing the Gulf of Alaska groundfish bottom trawl survey design for abundance estimation

2022
By Oyafuso, Z.S. ; Barnett, L.A.K. ; Siple, M.C. ; ...
Series: NOAA technical memorandum NMFS-AFSC ; 434

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Oyafuso, Z.S. ; Barnett, L.A.K. ; Siple, M.C. ; Kotwicki, S.

Oyafuso, Z.S. ; Barnett, L.A.K. ; Siple, M.C. ; Kotwicki, S. Less -
Corporate Authors:

Alaska Fisheries Science Center (U.S.). Resource Assessment and Conservation Engineering Division
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:

Fishery-independent surveys are subject to unavoidable fluctuations in sampling effort over time, creating a need for efficient and flexible survey designs. Here we use simulation to evaluate the performance of stratified random survey designs in the Gulf of Alaska (GOA) bottom trawl groundfish survey using alternative stratifications and sampling effort allocations relative to the status quo stratified random sampling design across a range of total sampling effort scenarios (corresponding to 1, 2, or 3 survey boats).
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Estimates Optimal Sampling Survey
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NOAA technical memorandum NMFS-AFSC ; 434
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https://doi.org/10.25923/g5zd-be29
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Technical Memorandum
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urn:sha256:fd37f02b7c5c8c44ea8b225a392023dd566dcbde7ae31de7855d3784bd4494d9
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A flexible approach to optimizing the Gulf of Alaska groundfish bottom trawl survey design for abundance estimation

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