People credited with this unit standard are able to describe: the principles of larval rearing in a hatchery for the selected aquatic species; the appropriate food and feeding system used for growth of a selected aquatic species for the period after hatching or spawning; the use and cleaning of hatchery plant and equipment for a selected aquatic species; and the water quality parameters and hatchery layout for a selected aquatic species in an aquaculture hatchery facility.