Assessment of the Pacific cod stock in the Gulf of Alaska

Barbeaux, Steven; Aydin, Kerim; Fissel, Ben; Holsman, Kirstin; Laurel, Ben; Palsson, Wayne; Shotwell, Kalei; Yang, Qiong; Zador, Stephani

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Assessment of the Pacific cod stock in the Gulf of Alaska

2018
By Barbeaux, Steven ; Aydin, Kerim ; Fissel, Ben ; ...
Series: Gulf of Alaska Stock Assessments

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Personal Author:

Barbeaux, Steven ; Aydin, Kerim ; Fissel, Ben ; Holsman, Kirstin ; Laurel, Ben ; ... More +

Barbeaux, Steven ; Aydin, Kerim ; Fissel, Ben ; Holsman, Kirstin ; Laurel, Ben ; Palsson, Wayne ; Shotwell, Kalei ; Yang, Qiong ; Zador, Stephani Less -
Corporate Authors:

North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; AKR (Alaska Region)

NMFS (National Marine Fisheries Service) ; AKR (Alaska Region) Less -
Description:

Relative to last year’s assessment, the following changes have been made in the current assessment: Changes in the input data-- 1.Federal and state catch data for 2017 were updated and preliminary federal and state catch data for 2018 were included; 2.Commercial federal and state fishery size composition data for 2017 were updated, and preliminary commercial federal and state fishery size composition data for 2018 were included; 3.AFSC longline survey Pacific cod abundance index and length composition data for the GOA for 2018 were included; 4.Age composition and conditional length-at-age data for the 2017 AFSC bottom trawl survey were added to the model; 5.Age composition and conditional length-at-age data for the 2012-2017 fisheries were added to the model. Changes in the methodology-- Model 17.09.35 is last year’s reference model with the addition of the 2017 AFSC bottom trawl survey age data, and 2018 longline survey and fishery data including fishery age composition and conditional length-at-age data. There are two new data configurations and three new model series explored this year (see below). Model 18.10.46 uses an environmental index to drive natural mortality and no satisfactory method has been yet fully vetted to conduct standard projections.
Keywords:

[+]

Fish Stock Assessment Pacific Cod
Series:

Gulf of Alaska Stock Assessments
Document Type:

Environmental Assessment
Place as Subject:

Alaska, Gulf of ; Aleutian Islands (Alaska) ; Bering Sea Coast (Alaska)

Alaska, Gulf of ; Aleutian Islands (Alaska) ; Bering Sea Coast (Alaska) Less -
Rights Information:

Public Domain
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:42a80b6bf19a333710ae01e8dfff62bbde92b824f7daeee0af015055e100ebe4
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https://repository.library.noaa.gov/view/noaa/20242/noaa_20242_DS1.pdf
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Assessment of the Pacific cod stock in the Gulf of Alaska

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