A contribution to the study of heterogeneity of the Adriatic sardine (Sardina pilchardus Walb.) population

Abstract

       A study of the heterogeneity of sardine population inha­biting the eastern Adriatic Sea was made on the basis of variations of the head length and number of gillrakers in relation to the body length. Statistical methods were used to determine the extent of difference and overlap of these characters. Results indicate that tested groups of sardine from the northern and middle Adriatic are heterogeneous with respect to the number of gillrakers.