Acoustic abundance estimate of 0-group north-east Arctic cod and haddock

The abundance of the 1991-1994-year classes of north-east Arctic cod and haddock at the age of six month have been estimated on the basis of Norwegian acoustic data from the International 0-group fish survey in the Barents Sea and adjacent waters. These results have been analysed in relation to the...

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Bibliographic Details
Main Author: Hylen, Arvid
Format: Report
Language:English
Published: ICES 1997
Subjects:
cod
torsk
haddock
hyse
acoustics
akustikk
stock assessment
bestandsberegning
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923
VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452
Arctic
Barents Sea
Arctic cod
Online Access:http://hdl.handle.net/11250/105685
Description
Summary:The abundance of the 1991-1994-year classes of north-east Arctic cod and haddock at the age of six month have been estimated on the basis of Norwegian acoustic data from the International 0-group fish survey in the Barents Sea and adjacent waters. These results have been analysed in relation to the abundance of the respective year classes at ages 1-3, computed by VPA with the XSA tuning procedure based on catch-at-age data including catch and cannibalism/-predation by cod. This study indicates a reasonable agreement of the 0-group fish abundance and the abundance of age group 1-3 in the pre-recruit phase.

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