Abstract
This study was conducted so as to unearth the relationships between opercular girth (Gope), maximum girth (Gmax), and total length (TL) for six sparid fishes (Boops boops, Diplodus annularis, Diplodus puntazzo, Diplodus vulgaris, Lithognathus mormyrus, Oblada melanura) belonging to family Sparidae sampled between April 2015 and July 2016 in Saros Bay (Northern Aegean Sea, Turkey). Gope and Gmax were found to increase linearly with total length for all the species. All r2 values were statistically significant (> 0.82, P < 0.001). This study reports the first information about length-girth relationships (LGRs) of Diplodus puntazzo for the Aegean sea. However, no LGRs estimates existed for Oblada melanura worldwide. These values are important for the selectivity of fishing gear so as to prevent the capture of younger, undersized, and immature individuals, it will assist the development of the ecosystem-based fisheries management.
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