lower-ranked fish experienced growth suppression. In addition, a difference in the fish's levels of certain steroids suggested that lower-ranked individuals also experienced reproductive suppression. Another experiment demonstrated that when a female anemonefish is removed from the anemone, then the dominant male becomes the female and the next-highest-ranked male moves up the dominance hierarchy to become the dominant male. Females use aggressive dominance behavior to control the males, preventing the formation of other females, and dominant males prevent juvenile males from mating. In aquaria In nature, the false percula clownfish is hosted by Heteractis magnifica and Stichodactyla gigantea. However, in captivity in a reef aquarium, the false percula is hosted by other species of anemone, including Entacmaea quadricolor. In addition, clownfish may adopt a surrogate host as opposed to an anemone, such as Euphyllia divisa, xenia coral, etc. Human interaction Amphiprion ocellaris are utilized as part of the tropical fish aquarium trade. However, only certain colors are in demand. In addition, A. ocellaris are used in research since they can be bred easily. This high demand in trade has been dangerous for A. ocellaris population due to overexploitation . Popular culture The main characters Marlin and his son Nemo from the animated film Finding Nemo, and its sequel Finding Dory (as well as Nemo’s late mother Coral), are ocellaris clownfish. References External links Aquaticdatabase entry for Amphiprion ocellaris (Ocellaris Clownfish). Photo Gallery of Amphiprion ocellaris and their eggs (ger.) Aquarium Wiki care information on Amphiprion ocellaris Amphiprion Fish described in 1802 Taxa named by Georges Cuvier Articles containing video clips