European hake is a species of great economic interest. In the aquaculture facilities of the IEO in Vigo there is the only European hake stock in captivity (Iglesias et al. 2010). One of the indicators of spawning quality is the proportion of larvae with the lipid droplet properly adhered to the membrane (ALD). The larvae non-ALD cannot consume the lipid droplet and die even though they feed on prey (Iglesias et al, 2013). The goal of this work was to determine how the lipid drop is adhered to the embryo.