Stomach contents of cod, haddock and saithe on the Møre coast in 1982 and 1983
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As part of a biological investigation of important demersal fish species, stomachs have been taken from cod, haddock, saithe and a few other species in 1982 and 1983. Also observations of stomachs have been made in the field. Some of the data from this sampling programme are presented in this paper. Data have been collected in spring, when the spawning of cod and herring take place and in summer. The stomachs have been preserved one by one together with data on each individual fish. In 1982 the stomachs were mainly put on formalin but in 1983 they were frozen. Data collected together with the stomachs are length, weight, age, sex and maturity. For cod also an index describing them as coastal or oceanic type have been given by otolitt readings. The stomach content have been analyzed for important prey groups. Tables showing total stomack content both in numbers and weight and devided on the various prey categories are given. A distinct seasonal shift in preference of prey is illustrated.