Osmerus eperlanus

O. eperlanus is a small to medium-sized fish whose adult size varies greatly according to habitat (Nellbring, 1989;Maitland, 2000;Davies et al., 2003;Kottelat and Freyhof, 2007). The normal range in length is 10-20 cm but some fish reach 30 cm. In general, fish from non-migratory freshwater populations are much smaller than those which have lived in the sea. It is a slender fish with large scales and eyes, a large mouth with a projecting lower jaw and obvious teeth on both jaws. It has a fleshy adipose fin between the dorsal and tail fins. Dorsal soft rays: 9-12;anal soft rays: 12-16;vertebrae: 55-62 (Froese and Pauly, 2012). Dorsal side light olive green, flanks silver stripe, belly creamy white (Froese and Pauly, 2012).