I don't have a picture of Atherina boyeri specifically, but here is a description from Creech, S., 1992. A study of the population biology of Atherina boyeri Risso, 1810 in Aberthaw Lagoon, on the Bristol Channel, in South Wales. J. Fish Biol. 41:277-286. A link to this article appears below.
Eggs are demersal, with long hairy appendages attaching them to the substrate consisting of filamentous algae, often at depths of 2 to 6 m. Oil globules combine and move towards the heart.. Vitelline circulatory system is unbranched and looping.
I've attached some pictures from similar species (Atherinopsis spp.).