Distribution of Norwegian spring-spawning herring and mackerel in the Norwegian Sea in late summer, 1991

A pairtrawl survey was carried out in the Norwegian Sea during July - August 1991 to map the distribution of pelagic fish. Herring were caught throughout most of the surveyed area, with the largest concentrations observed within 200 nautical miles off Vesterålen/Troms. It therefore seems that the No...

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Bibliographic Details
Main Authors: Holst, Jens Christian, Iversen, Svein A.
Format: Report
Language:English
Published: ICES 1992
Subjects:
herring
sild
mackerel
makrell
distribution
utbredelse
stock assessment
bestandsberegning
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485
VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923
Norwegian Sea
Vesterålen
Troms
Online Access:http://hdl.handle.net/11250/105080
Description
Summary:A pairtrawl survey was carried out in the Norwegian Sea during July - August 1991 to map the distribution of pelagic fish. Herring were caught throughout most of the surveyed area, with the largest concentrations observed within 200 nautical miles off Vesterålen/Troms. It therefore seems that the Norwegian spring-spawning herring has resumed its oceanic feeding migration. Mackerel were observed in most parts of the surveyed area as far north as 73° N, and seemed to belong to the Western stock. It was observed a tendency for older and bigger mackerel of the same yearclasses to migrate further north than younger and smaller individuals. A similar tendency was observed for horsemackerel.

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