The growth rings on the otoliths of the oil sardine, Sardinella longiceps Cuv. and Val.

Abstract

The importance of the study of gruwth rings on the otoliths and scales of fishes for age determination, by which alone the passage of year classes of commercially important fishes can be followed through the fishery, appears to have been well realised in European countries where intensive investigations on these structures have been made for several years.