Changes in growth of Northeast Arctic cod in relation to food consumption in 1984-1988

From 1984 to 1988 the average weight of cod (Gadus morhun) by age group in the Northeast Arctic stock was reduced by about 60% in most age groups. During the same period, the estimated individual food consumption by age group has decreased by 40-70%. It is concluded that these two features are close...

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Bibliographic Details
Main Authors: Mehl, Sigbjørn, Sunnanå, Knut
Format: Article in Journal/Newspaper
Language:English
Published: 1991
Subjects:
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921
Arctic
Arctic cod
Northeast Arctic cod
Online Access:http://hdl.handle.net/11250/108061
Description
Summary:From 1984 to 1988 the average weight of cod (Gadus morhun) by age group in the Northeast Arctic stock was reduced by about 60% in most age groups. During the same period, the estimated individual food consumption by age group has decreased by 40-70%. It is concluded that these two features are closely correlated and that the decimation of the stock of one of the major prey species, the capelin (Mallotus villosus), is ultimately largely responsible.

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