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Preliminary results of Sarda sarda (Bloch,1973) population analysis in the Adriatic Sea

Bonito, Sarda sarda is is distributed in the whole Adriatic Sea, especially in its middle and southern part. A total of 294 analyzed specimens of Sarda sarda was sampled from commercial catches during 1997-1998 period. Males slightly predominated during 1997 (51.19% males,48.81% females) while females predominated (38.58% males,61.42% females)during 1998. Female fork-length ranged from 33.0 cm(September, 1998)to 57.0 cm (January, 1998). Male fork-length varied from 35.0 cm (September, 1998)to 56.0 cm (January, 1998). The following equation depicts the length – weight relationship of analysed bonito specimens W=0.0071 X 3.1872 (r2=0.9644). Positive allometry was established(b=3.1872). The maximum gonosomatic index value were found in June and were 1.52 for females (fork length=39.0 cm),and for males (fork length = 38.5 cm).

Sarda sarda; biometry;gonosomatic index;length – weight relationship; Adriatic Sea

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