Primary growth rings in otoliths of Barents Sea capelin
Abstract
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.
Publisher
[Fiskeridirektoratets havforskningsinstitutt]Series
Fiskeridirektoratets skrifter, Serie Havundersøkelservol 17 no 15