Primary growth rings in otoliths of Barents Sea capelin
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Formation of primary growth rings in otoliths of Barents Sea capelin was studied both for fish of known age, from rearing in a basin, and for field-sampled fish. The numbers of growth rings were related to fish length and age. Correlation of the number of rings and length of larvae indicates that fastgrowing specimens form more rings per unit time than slowgrowing ones. This seems also to be the case in juveniles and adults. The results of the present study suggest that primary growth rings are formed daily in capelin up to an age of about one year.
SeriesFiskeridirektoratets skrifter, Serie Havundersøkelser
vol 17 no 15