Results of the February 2020 acoustic-trawl survey of walleye pollock (Gadus chalcogrammus) conducted in the southeastern Aleutian Basin near Bogoslof Island, Cruise DY2020-02

McKelvey, Denise; Levine, Mike

doi:10.25923/6kqv-cm07

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Results of the February 2020 acoustic-trawl survey of walleye pollock (Gadus chalcogrammus) conducted in the southeastern Aleutian Basin near Bogoslof Island, Cruise DY2020-02

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Personal Author:

McKelvey, Denise ; Levine, Mike

McKelvey, Denise ; Levine, Mike 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:

Scientists from the Alaska Fisheries Science Center conducted an acoustic-trawl (AT) survey in mid-February 2020 to estimate the abundance of pre-spawning walleye pollock (Gadus chalcogrammus) in the southeastern Aleutian Basin near Bogoslof Island. Twenty-six transect lines were surveyed, and 14 trawl hauls were conducted for biological measurements during the survey. This report summarizes the observed pollock distribution and biological information and provides an abundance estimate used for stock assessment.
Keywords:

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Acoustic Aleutian Bogoslof Pollock Survey Trawl Walleye
Series:

AFSC processed report ; 2023-04
DOI:

https://doi.org/10.25923/6kqv-cm07
Format:

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:sha-512:7018801436cfdd42adabd7cd42984228b1b5c0b6f20ad73ba4499b7834632b394b0ef8c1dcb2bd6d51e91e50e583f64d0eab57dae558dbc7200205d2621a4b00
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https://repository.library.noaa.gov/view/noaa/55663/noaa_55663_DS1.pdf
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Results of the February 2020 acoustic-trawl survey of walleye pollock (Gadus chalcogrammus) conducted in the southeastern Aleutian Basin near Bogoslof Island, Cruise DY2020-02

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