Assessment of the North-East Arctic and North Sea Stocks of Saithe Taking Into Account Migration

Tagging experiments have shown that there is a substantial migration of young saithe from the Norwegian coast north of 62°N to the North Sea. Assessments of the North-East Arctic and North Sea Stocks of saithe were made assuming that all 1-4 year old saithe caught between 62° and 64°N would have rec...

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Bibliographic Details
Main Author: Jakobsen, Tore
Format: Report
Language:English
Published: ICES 1981
Subjects:
saithe
sei
stock assessment
bestandsberegning
fish migration
vandringer
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921
Arctic
Online Access:http://hdl.handle.net/11250/102842
Description
Summary:Tagging experiments have shown that there is a substantial migration of young saithe from the Norwegian coast north of 62°N to the North Sea. Assessments of the North-East Arctic and North Sea Stocks of saithe were made assuming that all 1-4 year old saithe caught between 62° and 64°N would have recruited to the North Sea stock. The new assessments give a decrease in the level of recruitment to the North-East Arctic stock and an increase to the North Sea stock. he exploitation of the NorthEast Arctic stock is close to F max , whereas the North Sea stock is subject to considerable growth overfishing. Reduction in the exploitation of young saithe between 62° and 64°N will benefit chiefly the North Sea stock.

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