Assessment of the Pacific cod stock in the Gulf of Alaska

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

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Assessment of the Pacific cod stock in the Gulf of Alaska

2017
By Barbeaux, Steven J. ; Aydin, Kerim ; Fissel, Ben ; ...
Series: Gulf of Alaska Stock Assessments

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Alternative Title:

GOA Chapter 2
Personal Author:

Barbeaux, Steven J. ; Aydin, Kerim ; Fissel, Ben ; Holsman, Kirstin ; Palsson, Wayne ; ... More +

Barbeaux, Steven J. ; Aydin, Kerim ; Fissel, Ben ; Holsman, Kirstin ; Palsson, Wayne ; Shotwell, S. Kalei ; Yang, Qiong ; Zador, Stephani Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service)
Description:

The addition of the new method for estimating the fishery catch-at-lengths and applying ADF&G port sampling data in the pot fishery made only a small difference in model results and was an improvement of how estimates were derived. Model 17.09.35 provided the best fit to the data represents a balance between acknowledging a mortality event (with M changing in 2015-2016) and overfitting survey data. Also, this model performed well in retrospective analyses. This recommended model configuration differs from the 2016 Model in allowing natural mortality to change for 2015 and 2016. It also adds a feature that allows the catchability in the AFSC longline RPN index to be conditioned on water temperature.
Keywords:

[+]

Fish Stock Assessment Groundfish Pacific Cod
Series:

Gulf of Alaska Stock Assessments
Document Type:

Stock Assessment
Place as Subject:

Alaska, Gulf of
Rights Information:

Public Domain
Compliance:

Submitted
Main Document Checksum:

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urn:sha256:36a0e13917c9375ffd32cd92e0abb256e3879a8f6793183392aae5480c4a1d4f
Download URL:

https://repository.library.noaa.gov/view/noaa/17515/noaa_17515_DS1.pdf
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Assessment of the Pacific cod stock in the Gulf of Alaska

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