The shape of the lipid vesicle is a potential marker for egg quality determination in the gilthead seabream, Sparus aurata, and in the sharpsnout seabream, Diplodus puntazzo

From all investigated morphometric parameters only the ratio of the maximal to the minimal diameter of the lipid vesicle (RDLV) and the lipid vesicle shape coefficient (LVSC) were correlated with larval survival (%) from viable eggs. As the shape of a lipid droplet depends on the type and composition of lipid, the lipid to water ratio, and the interactions with the surrounding water molecules this parameter may be an index for the biochemical lipid composition.