Analysis of catch per unit effort estimates based on hooking order when more than one fish is caught on a hook

Cooper, D. J.; Tribuzio, Cindy A. (Cindy Ann)

doi:10.25923/dq32-7b59

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Analysis of catch per unit effort estimates based on hooking order when more than one fish is caught on a hook

Published Date:

2019

Series:

AFSC processed report ; 2019-07

[PDF-998.33 KB]

Details:

Personal Author:

Cooper, D. J. ; Tribuzio, Cindy A. (Cindy Ann) ;

Corporate Authors:

United States. National Marine Fisheries Service ; Alaska Fisheries Science Center (U.S.) ; Auke Bay Laboratories (Juneau, Alaska) ;

NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) ;

Description:

This study examines the CPUE estimates (calculated for this study as the number of fish of each species per effective hook at a station) from two fishery-independent longline surveys operating in the eastern North Pacific which are used to inform groundfish stock assessments: the International Pacific Halibut Commission (IPHC) annual halibut setline survey and the National Marine Fisheries Service (NMFS) Alaska Fisheries Science Center’s annual groundfish longline survey. Both surveys provide data from which CPUE estimates can be calculated, however the data recording methods differ. This study is not comparing the two surveys to each other but compares how the estimated CPUEs may change based on the method of data recording; thus, each survey is being compared to itself.

Keywords:

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DOI:

https://doi.org/10.25923/dq32-7b59

Document Type:

Technical Report

Place as Subject:

North Pacific Region

Rights Information:

Public Domain

Main Document Checksum:

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Analysis of catch per unit effort estimates based on hooking order when more than one fish is caught on a hook

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