Microspathodon chrysurus
The spawning (laying eggs) cycle of the yellowtail damselfish starts at sunrise and lasts approximately 1 hour after male damselfish have prepared nests on dead coral surfaces. Their eggs are demersal, sticking to the coral where males guard and fan oxygen over them. Hatching occurs the morning of the 6th day of incubation. Reproductive activity is highest during the lunar period between full and new moon. At those points in the lunar cycle, the pull of the sun and the moon are very high resulting in spring tides.